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产品型号UCC283T-3的概述

UCC283T-3 芯片概述 UCC283T-3 是一款由德州仪器（Texas Instruments）公司设计和制造的高性能电流模式控制器。这款芯片被广泛应用于开关模式电源（SMPS）和 DC-DC 转换器，其主要目的是提供高效稳定的电源管理解决方案，尤其适用于各种电力转换应用。UCC283T-3 具备高动态响应能力和良好的负载调节特性，使其在市场中脱颖而出。该控制器在一些特殊应用中也具有很强的优势，例如在需要提高效率、降低噪声和减少EMI（电磁干扰）的场合，其性能表现尤为突出。无论是在消费电子、工业自动化还是通信设备领域，UCC283T-3都展现出其广泛的适用性与卓越的兼容性。芯片参数 UCC283T-3 的主要参数包括： 1. 工作电压范围：8V 至 24V 2. 最大启动电流：25mA 3. 最大输出电流：2A 4. 开关频率：10 kHz 至 100 kHz 5. 输出调...

产品型号UCC283T-3的Datasheet PDF文件预览

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

TO−263−3 TD PACKAGE

(FRONT VIEW)

TO−263−5 TD PACKAGE

(FRONT VIEW)

Precision Positive Linear Series Pass

Voltage Regulation

VOUT

0.45 V Dropout at 3 A

VOUT

GND

VIN

ADJ

GND

50 mV Dropout at 10 mA

Quiescent Current Under 650 µA

Irrespective of Load

VIN

Adjustable (5-Lead) Output Voltage Version

TO−220−5 T PACKAGE

(FRONT VIEW)

Fixed (3-Lead) Versions for 3.3-V and 5-V

Outputs

VOUT

ADJ

GND

Logic Shutdown Capability

Short-Circuit Power Limit of

(3% × V × I

)

VIN

SHORT

Low V

to V Reverse Leakage

OUT IN

Thermal Shutdown

TO−220−3 T PACKAGE

(FRONT VIEW)

description

VOUT

GND

VIN

The UCC283−3/−5/−ADJ family of positive linear

series pass voltage regulators are tailored for

low-drop-out applications where low quiescent

power is important. Fabricated with a BiCMOS

technology ideally suited for low input-to-output

differential applications, the UCC283−5 passes

3 A while requiring only 0.45 V of typical input

voltage headroom (ensured 0.6-V dropout).

These regulators include reverse voltage sensing that prevents current in the reverse direction. Quiescent

current is always less than 650 µA. These devices have been internally compensated in such a way that the

need for a minimum output capacitor has been eliminated.

UCC283−3 and UCC283−5 versions are in 3-lead packages and have preset outputs at 3.3 V and 5.0 V

respectively. The output voltage is regulated to 1.5% at room temperature. The UCC283−ADJ version, in a

5-lead package, regulates the output voltage programmed by an external resistor ratio.

Short-circuit current is internally limited. The device responds to a sustained overcurrent condition by turning

off after a t

time delay. The device then stays off for a period, t

, that is 32 times the t

delay. The device

OFF

then begins pulsing on and off at the t /(t +t

) duty cycle of 3%. This drastically reduces the power

ON ON OFF

dissipation during short-circuit and means heat sinks need only accommodate normal operation. On the

3-leaded versions of the device t

is fixed at 750 µs, on the adjustable 5-leaded versions an external capacitor

sets the on time. The off time is always 32 × t . The external timing control pin, CT, on the 5-leaded versions

also serves as a shutdown input when pulled low.

Internal power dissipation is further controlled with thermal overload protection circuitry. Thermal shutdown

occurs if the junction temperature exceeds 165°C. The chip remains off until the temperature has dropped 20°C.

The UCC283 series is specified for operation over the industrial range of −40°C to 85°C, and the UCC383 series

is specified from 0°C to 70°C. These devices are available in 3- and 5-pin TO−220 and TO−263 power packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

(1)

AVAILABLE OPTIONS

PACKAGE DEVICES

OUTPUT VOLTAGE (V)

(2)

TO−263−3

(2)

TO−263−5

TO−220−3

TO−220−5

MIN

3.22

TYP

3.3

MAX

3.58

UCC283TD−3

UCC283TD−5

—

UCC283T−3

UCC283T−5

—

4.875

5.00

ADJ

3.3

5.125

—

−40°C to 85°C

0°C to 70°C

UCC283TD−ADJ

UCC283T−ADJ

3.22

3.58

UCC383TD−3

UCC383TD−5

—

UCC383T−3

UCC383T−5

—

4.875

5.00

ADJ

5.125

UCC383TD−ADJ

UCC383T−ADJ

1. For more package and ordering information, see the Package Option Addendum located at the end of this data sheet.

2. For 50 piece reel, add KTTT (e.g., UCC283TDKTTT−3); for 500 piece reel, add TR (e.g., UCC283TDTR−3).

functional block diagram

*5 LEADED VERSION ONLY (ADJ)

VIN

VOUT

ADJ*

PUMP

CURRENT LIMIT

4 A/ 7 A CURRENT

REFERENCE

0.65 V

1.25 V

3% DUTY CYCLE

CURRENT LIMIT TIMER

SD/CT*

GND

REVERSE VOLTAGE

SENSE

OPEN

50k

UCC283−ADJ

UCC283−3

UCC283−5

UVLO

THERMAL

SHUTDOWN

82k

150k 50k

UDG−98133

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

electrical characteristics T = 0°C to 70°C for the UCC383−x series, T = −40°C to 85°C for the

UCC283−x, V

= V

+ 1.5 V, I

= 10 mA, C = 10 mF, C

= 22 mF. For the UCC283−ADJ, V

VIN

VOUT

OUT

OUT VIN

= 6.5 V, V

= 5.0 V, C = 750 pF, T = T unless otherwise stated

OUT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UCC283−5 Fixed 5 V, 3 A Family

T = 25°C

4.925

4.875

5.075

5.125

Output voltage

Over temperature

Line regulation

Load regulation

= 5.15 V to 9 V

= 10 mA to 3 A

VIN

OUT

0.4

0.2

= 3 A,

= 4.85 V

0.6

OUT

= 1.5 A,

= 10 mA,

0.45

150

Dropout voltage, V

Peak current limit

= V

− V

VOUT

DROPOUT

VIN

= 0 V

VOUT

Overcurrent threshold

Current limit duty cycle

5.5

= 0 V

750

400

VOUT

Overcurrent time out, t

400

1400

650

µs

VOUT

Quiescent current

No load

1 V < V

µA

< V

VIN

≤ 5.1 V, at V

VOUT

Reverse leakage current

Undervoltage lockout

µA

VOUT

VIN where VOUT passes current

2.5

2.8

UCC283−3 Fixed 3.3 V, 3 A Family

T = 25°C

3.25

3.22

3.3

3.35

3.38

Output voltage

Over temperature

Line regulation voltage

Load regulation voltage

= 3.45 V to 9 V

= 10 mA to 3 A

= 3A,

VIN

OUT

VOUT = 3.15 V

0.5

0.25

= 1.5A,

0.6

150

Dropout voltage, V

Peak current limit

= V

VIN

− V

VOUT

DROPOUT

= 10mA,

= 0 V

VOUT

Overcurrent threshold

Current limit duty cycle

5.5

1400

650

= 0 V

750

400

VOUT

Overcurrent time out, t

400

µs

VOUT

Quiescent current

No load

1 V < V

µA

< V

VIN

≤ 3.35 V at V

VOUT

Reverse leakage current

Undervoltage lockout

µA

VOUT

VIN where VOUT passes current

2.5

2.8

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

electrical characteristics T = 0°C to 70°C for the UCC383−x series, T = −40°C to 85°C for the

UCC283−x, V

= V

+ 1.5 V, I

= 10 mA, C = 10 mF, C

= 22 mF. For the UCC283−ADJ, V

VIN

VOUT

OUT

OUT VIN

= 6.5 V, V

= 5.0 V, C = 750 pF, T = T unless otherwise stated

OUT

T J A

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UCC283−ADJ Adjustable Output, 3 A Family

TJ = 25°C

Over temperature

1.23

1.25

1.27

1.28

Regulating voltage at ADJ pin

1.22

Line regulation voltage, at ADJ input

Load regulation voltage, at ADJ input

= V

+ 150 mV to 9 V

= 10 mA to 3 A

VIN

VOUT

OUT

= 4.85 V,

= 3 A

0.4

0.2

0.6

0.45

150

OUT

VOUT

OUT

= 1.5 A

= 10 mA

Dropout voltage, V

Peak current limit

= VIN − VOUT

DROPOUT

= 0 V

Overcurrent threshold

Current limit duty cycle

5.5

= 0 V

VOUT

Overcurrent time out, t

300

575

1200

µs

VOUT

1 V < V

VIN

VOUT

< V

VOUT

Reverse leakage current

100

µA

≤ 9 V, at V

VOUT

Bias current at ADJ input

Quiescent current

400

0.65

250

650

µA

No load

At CT input

= 9 V

Shutdown threshold

Quiescent current in shutdown

UVLO

0.25

2.5

µA

VIN

VIN where VOUT passes current

2.8

†

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Input voltage

VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 V

CT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 3 V

ADJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 9 V

Storage Temperature, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C

stg

Junction Temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 150°C

Lead Temperature (soldering, 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

pin descriptions

ADJ: Adjust pin for the UCC283−ADJ version only. Feedback pin for the linear regulator. Program the output

voltage with R1 connected from ADJ to GND and R2 connected from VOUT to ADJ. Output voltage is given

by:

(

)

1.25 V R1 ) R2

OUT

CT: Short-circuit timing capacitor and shutdown input for the UCC283−ADJ version. Pulling CT below 0.25 V

turns off the regulator and places it in a low quiescent-current mode. A timing capacitor, C, from CT to GND

programs the duration of the pulsed short-circuit on-time. On-time, t , is approximately given by:

+ 750 k C

GND: Reference ground.

VIN: Input voltage, This pin must be bypassed with a low ESL/ESR 1-µF or larger capacitor to GND. VIN can

range from (VOUT + V

) to 9 V. If VIN is reduced to zero while VOUT is held high, the reverse leakage

DROPOUT

from VOUT to VIN is less than 75µA.

VOUT: Regulated output voltage. A bypass capacitor is not required at VOUT, but may be desired for good

transient response. The bypass capacitor must not exceed a maximum value in order to insure the regulator

can start.

APPLICATION INFORMATION

overview

The UCC383 family of low dropout linear (LDO) regulators provide a regulated output voltage for applications

with up to 3 A of load current. The regulators feature a low dropout voltage and short-circuit protection, making

their use ideal for demanding high-current applications requiring fault protection.

short-circuit-protection

The UCC383 provides unique short-circuit protection circuitry that reduces power dissipation during a fault.

When an overload situation is detected, the device enters a pulsed mode of operation at 3% duty cycle reducing

the heat sink requirements during a fault. The UCC383 has two current thresholds that determine its behavior

during a fault as shown in Figure 1. When the regulator current exceeds the overcurrent threshold for a period

longer than t , the UCC383 shuts off for a period (t

) which is 32 × t . During an overload, the regulator

OFF

actively limits the maximum current to the peak current limit value. The peak current limit is nominally 3 A

greater than the overcurrent threshold. The regulator continues in pulsed mode until the fault is cleared as

illustrated in Figure 1.

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

APPLICATION INFORMATION

PEAK

CURRENT

LIMIT

OVERLOAD

OUTPUT

CURRENT

OVER−

CURRENT

THRESHOLD

IO (NOM)

(NOM)

OLCL

OUTPUT

VOLTAGE

32 T

Figure 1. UCC383 Short-Circuit Timing

A capacitive load on the regulator’s output appears as a short-circuit during start-up. If the capacitance is too

large, the output voltage does not come into regulation during the initial t period and the UCC383 enters

pulsed mode operation. The peak current limit, t

period, and load characteristics determine the maximum

value of output capacitor that can be charged. For a constant current load the maximum output capacitance is

given as follows:

₊ǒ_ICL

* I

Farads

OUT(max)

LOAD

OUT

(1)

For worst case calculations, the minimum values of on time (t ) and peak current limit (I ) should be used.

The adjustable version allows the t

time to be adjusted with a capacitor on the CT pin:

( )

+ 750, 000 C m Farad microseconds

ON(adj)

For a resistive load (R

(2)

) the maximum output capacitor can be estimated from:

LOAD

ON(sec)

Farads

OUT(max)

ȏn

LOAD

VOUT

_LOADȤ

(3)

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ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

APPLICATION INFORMATION

dropout performance

Referring to the Block Diagram, the dropout voltage of the UCC383 is equal to the minimum voltage drop (V

to V

) across the N-channel MOSFET. The dropout voltage is dependent on operating conditions such as

OUT

load current, input and load voltages, as well as temperature. The UCC383 achieves a low Rds(on) through the

use of an internal charge-pump (V ) that drives the MOSFET gate. Figure 2 depicts typical dropout voltages

PUMP

versus load current for the 3.3-V and 5-V versions of the part, as well as the adjustable version programmed

to 3.0 V.

Figure 3 depicts the typical dropout performance of the adjustable version with various output voltages and load

currents.

Operating temperatures also affect the Rds(on) and dropout voltage of the UCC383. Figure 4 graphs the typical

dropout for the 3.3-V and 5-V versions with a 3-A load over temperature.

TYPICAL DROPOUT VOLTAGE

vs.

LOAD CURRENT

AND V

OUT

0.5

0.4

0.3

0.2

0.1

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

OUT

= 3.3 V

OUT

= 3 V

= 3 A

OUT

= 5 V

= 1.5 A

OUT

= 1 A

OUT

1.5

2.5

3.5

4.5

(A)

(V)

OUT

Figure 2

Figure 3

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ꢀ ꢁꢁꢂ ꢃ ꢄ ꢅꢄ ꢆ ꢀ ꢁꢁ ꢂ ꢃꢄ ꢅ ꢇꢆ ꢀꢁ ꢁꢂ ꢃ ꢄ ꢅꢈꢉ ꢊ ꢆ ꢀꢁꢁ ꢄ ꢃꢄ ꢅ ꢄꢆ ꢀꢁꢁ ꢄ ꢃꢄ ꢅ ꢇꢆ ꢀꢁꢁ ꢄ ꢃꢄ ꢅ ꢈꢉꢊ

ꢋ ꢌꢍꢎꢉ ꢏ ꢌꢐꢌꢀ ꢑ ꢄ ꢎꢈ ꢋꢒ ꢓ ꢔ ꢈꢏ ꢏꢔ ꢕ ꢀꢋꢈꢑꢌ ꢏ ꢖꢈꢗ ꢒꢋꢘ

ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

APPLICATION INFORMATION

voltage programming and shutdown feature for adjustable version

A typical application circuit based on the UCC383 adjustable version is shown in Figure 5. The output voltage

is externally programmed through a resistive divider at the ADJ pin.

TYPICAL DROPOUT VOLTAGE

vs.

CASE TEMPERATURE WITH A 3-A LOAD

0.6

0.5

= 3.3 V

OUT

0.4

0.3

0.2

= 5 V

OUT

−40

Temperature (5C)

Figure 4

^R2Ǔ

Volts

+ 1.25 1 )

OUT

(4)

The maximum programmed output voltage is constrained by the 9-V absolute rating of the IC (this includes the

charge pump voltage) and its ability to enhance the N-channel MOSFET. Unless the load current is below the

3-A rating of the device, output voltages above 7 V are not recommended. The minimum output voltage can

be programmed down to 1.25 V. However, the input voltage must always be greater than the UVLO of the part.

The adjustable version includes a shutdown feature, limiting quiescent current to 40 µA typical. The UCC383

is shut down by pulling the CT pin to below 0.25 V. As shown in Figure 5, a small logic level MOSFET or BJT

transistor in parallel with the timing capacitor can be driven with a digital signal, putting the device in shutdown.

If the CT pin is not pulled low, the IC internally pulls up the pin enabling the regulator. The CT pin should not

be forced high, as this interferes with the short-circuit-protection feature. Selection of the timing capacitor is

explained in Short-Circuit-Protection.

The adjustable version can be used in applications requiring remote voltage sensing (i.e. monitoring a voltage

other than or not directly tied to the VOUT pin). This is possible since the inverting input of the error-voltage

amplifier (see Block Diagram) is brought out to the ADJ pin.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

ꢋ ꢌꢍꢎꢉꢏꢌ ꢐ ꢌꢀꢑ ꢄ ꢎꢈ ꢋ ꢒꢓꢔ ꢈꢏ ꢏꢔꢕ ꢀꢋ ꢈꢑꢌ ꢏ ꢖꢈ ꢗꢒ ꢋꢘ

ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

APPLICATION INFORMATION

thermal design

The Package Information section of the Power Supply Control Products Data Book, Volume 3 (Literature

No. SLUD003) contains reference material for the thermal ratings of various packages. The section also

includes an excellent article Thermal Characteristics of Surface Mount Packages, that is the basis of the

following discussion.

Thermal design for the UCC383 family of linear regulators includes two modes of operation, normal and pulsed

mode. In normal operation, the linear regulator and heat sink must dissipate power equal to the maximum

forward voltage drop multiplied by the maximum load current. Assuming a constant current load, the expected

heat rise at the regulator’s junction can be calculated as follows:

°C

ǒ_q_caǓ

) q

(q) + P

RISE

DISS

(5)

Where theta, (θ) is thermal resistance and P

is the power dissipated. The thermal resistance of both the

DISS

TO−220 and TO−263 packages (junction to case) is 3°C per Watt. In order to prevent the regulator from going

into thermal shutdown, the case to ambient theta must keep the junction temperature below 150°C. If the LDO

is mounted on a 5-square inch pad of 1-ounce copper, for example, the thermal resistance from junction to

ambient becomes 60°C per Watt. If a lower thermal resistance is required by the application, the device heat

sinking would need to be improved.

When the UCC383 regulator is in pulsed mode due to an overload or short-circuit in the application, the

maximum average power dissipation is calculated as follows:

₊ǒ_VIN

* V

Watts

PULSE(avg)

OUT

33 t

(6)

As seen in Equation 6, the average power during a fault is reduced dramatically by the duty cycle, allowing the

heat sink to be sized for normal operation. Although the peak power in the regulator during the t period can

be significant, the thermal mass of the package generally keeps the junction temperature from rising unless the

period is increased to tens of milliseconds.

ripple rejection

Even though the UCC383 family of linear regulators are not optimized for fast transient applications (Refer to

the UC182 Fast LDO Linear Regulator), they do offer significant power supply rejection at lower frequencies.

Figure 6 depicts ripple rejection performance in a typical application. The performance can be improved with

additional filtering.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

ꢀ ꢁꢁꢂ ꢃ ꢄ ꢅꢄ ꢆ ꢀ ꢁꢁ ꢂ ꢃꢄ ꢅ ꢇꢆ ꢀꢁ ꢁꢂ ꢃ ꢄ ꢅꢈꢉ ꢊ ꢆ ꢀꢁꢁ ꢄ ꢃꢄ ꢅ ꢄꢆ ꢀꢁꢁ ꢄ ꢃꢄ ꢅ ꢇꢆ ꢀꢁꢁ ꢄ ꢃꢄ ꢅ ꢈꢉꢊ

ꢋ ꢌꢍꢎꢉ ꢏ ꢌꢐꢌꢀ ꢑ ꢄ ꢎꢈ ꢋꢒ ꢓ ꢔ ꢈꢏ ꢏꢔ ꢕ ꢀꢋꢈꢑꢌ ꢏ ꢖꢈꢗ ꢒꢋꢘ

ꢙ

SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004

APPLICATION INFORMATION

UCC383−ADJ

VIN

VOUT

INPUT

10µF

LOAD

ADJ

SHUTDOWN

GND

Figure 5. Typical Application for 5-Pin Adjustable Version

Figure 6. Ripple Rejection vs. Frequency

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PACKAGE OPTION ADDENDUM

www.ti.com

21-Apr-2012

PACKAGING INFORMATION

Status ⁽¹⁾

Eco Plan ⁽²⁾

MSL Peak Temp ⁽³⁾

Samples

Orderable Device

Package Type Package

Drawing

Pins

Package Qty

Lead/

Ball Finish

(Requires Login)

UCC283T-3

UCC283T-3G3

ACTIVE

OBSOLETE

ACTIVE

TO-220

Green (RoHS

& no Sb/Br)

CU SN

N / A for Pkg Type

Call TI

Green (RoHS

& no Sb/Br)

CU SN

Call TI

CU SN

UCC283T-5

Green (RoHS

& no Sb/Br)

UCC283T-5G3

Green (RoHS

& no Sb/Br)

UCC283T-ADJ

Green (RoHS

& no Sb/Br)

UCC283T-ADJG3

UCC283TD-ADJ

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

KTT

TBD

UCC283TDKTTT-3

UCC283TDKTTT-3G3

UCC283TDKTTT-5

UCC283TDKTTT-5G3

UCC283TDKTTT-ADJ

UCC283TDKTTT-ADJG3

UCC283TDTR-3

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

Level-2-260C-1 YEAR

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

500

Green (RoHS

& no Sb/Br)

UCC283TDTR-3G3

UCC283TDTR-ADJ

UCC283TDTR-ADJG3

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

21-Apr-2012

Status ⁽¹⁾

ACTIVE

OBSOLETE

ACTIVE

Eco Plan ⁽²⁾

MSL Peak Temp ⁽³⁾

Samples

Orderable Device

Package Type Package

Drawing

Pins

Package Qty

Lead/

Ball Finish

(Requires Login)

UCC383T-3

UCC383T-3G3

TO-220

Green (RoHS

& no Sb/Br)

CU SN

N / A for Pkg Type

Call TI

Green (RoHS

& no Sb/Br)

CU SN

Call TI

CU SN

UCC383T-5

Green (RoHS

& no Sb/Br)

UCC383T-5G3

Green (RoHS

& no Sb/Br)

UCC383T-ADJ

Green (RoHS

& no Sb/Br)

UCC383T-ADJG3

UCC383TD-3

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

KTT

TBD

UCC383TD-5

DDPAK/

TO-263

Call TI

UCC383TD-ADJ

UCC383TDKTTT-3

UCC383TDKTTT-3G3

UCC383TDKTTT-5

UCC383TDKTTT-5G3

UCC383TDKTTT-ADJ

UCC383TDKTTT-ADJG3

UCC383TDTR-3

UCC383TDTR-3G3

UCC383TDTR-5

DDPAK/

TO-263

Call TI

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

Level-2-260C-1 YEAR

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

500

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

Addendum-Page 2

PACKAGE OPTION ADDENDUM

www.ti.com

21-Apr-2012

Status ⁽¹⁾

ACTIVE

Eco Plan ⁽²⁾

MSL Peak Temp ⁽³⁾

Samples

Orderable Device

Package Type Package

Drawing

Pins

Package Qty

Lead/

Ball Finish

(Requires Login)

UCC383TDTR-5G3

UCC383TDTR-ADJ

UCC383TDTR-ADJG3

DDPAK/

TO-263

KTT

500

Green (RoHS

& no Sb/Br)

CU SN

Level-2-260C-1 YEAR

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

CU SN

DDPAK/

TO-263

Green (RoHS

& no Sb/Br)

⁽¹⁾The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.

OBSOLETE: TI has discontinued the production of the device.

⁽²⁾Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability

information and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined.

Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that

lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.

Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between

the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.

Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight

in homogeneous material)

⁽³⁾MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information

provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and

continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.

TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

Addendum-Page 3

PACKAGE MATERIALS INFORMATION

www.ti.com

14-Jul-2012

TAPE AND REEL INFORMATION

*All dimensions are nominal

Device

Package Package Pins

Type Drawing

SPQ

Reel

Pin1

Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant

(mm) W1 (mm)

UCC283TDKTTT-3

UCC283TDKTTT-5

UCC283TDKTTT-ADJ

UCC283TDTR-3

DDPAK/

TO-263

KTT

330.0

24.4

10.6

15.6

4.9

16.0

24.0

DDPAK/

TO-263

DDPAK/

TO-263

DDPAK/

TO-263

500

UCC283TDTR-ADJ

UCC383TDKTTT-3

UCC383TDKTTT-5

UCC383TDKTTT-ADJ

UCC383TDTR-3

DDPAK/

TO-263

DDPAK/

TO-263

DDPAK/

TO-263

DDPAK/

TO-263

DDPAK/

TO-263

500

UCC383TDTR-5

DDPAK/

TO-263

UCC383TDTR-ADJ

DDPAK/

Pack Materials-Page 1

PACKAGE MATERIALS INFORMATION

www.ti.com

14-Jul-2012

Device

Package Package Pins

Type Drawing

SPQ

Reel

Pin1

Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant

(mm) W1 (mm)

TO-263

*All dimensions are nominal

Device

Package Type Package Drawing Pins

SPQ

Length (mm) Width (mm) Height (mm)

UCC283TDKTTT-3

UCC283TDKTTT-5

UCC283TDKTTT-ADJ

UCC283TDTR-3

DDPAK/TO-263

KTT

367.0

45.0

500

UCC283TDTR-ADJ

UCC383TDKTTT-3

UCC383TDKTTT-5

UCC383TDKTTT-ADJ

UCC383TDTR-3

500

UCC383TDTR-5

UCC383TDTR-ADJ

Pack Materials-Page 2

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other

changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest

issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and

complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale

supplied at the time of order acknowledgment.

TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms

and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary

to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily

performed.

TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and

applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide

adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or

other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information

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Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration

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Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service

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www.ti.com/audio

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Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

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UCC283T-3产品参数

型号:	UCC283T-3
Brand Name：	Texas Instruments
是否Rohs认证：	符合
生命周期：	Obsolete
IHS 制造商：	TEXAS INSTRUMENTS INC
零件包装代码：	SFM
包装说明：	TO-220, SIP3,.1TB
针数：	3
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
Factory Lead Time：	1 week
风险等级：	7.83
可调性：	FIXED
最大回动电压 1：	1 V
标称回动电压 1：	0.5 V
最大绝对输入电压：	9 V
最大输入电压：	9 V
最小输入电压：	3.45 V
JESD-30 代码：	R-PSFM-T3
JESD-609代码：	e3
最大电网调整率：	0.007%
最大负载调整率：	0.015%
功能数量：	1
输出次数：	1
端子数量：	3
工作温度TJ-Max：	150 °C
工作温度TJ-Min：	-55 °C
最高工作温度：	85 °C
最低工作温度：	-40 °C
最大输出电流 1：	3 A
最大输出电压 1：	3.58 V
最小输出电压 1：	3.22 V
标称输出电压 1：	3.3 V
封装主体材料：	PLASTIC/EPOXY
封装代码：	TO-220
封装等效代码：	SIP3,.1TB
封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT
峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
子类别：	Other Regulators
表面贴装：	NO
技术：	BICMOS
端子面层：	Matte Tin (Sn)
端子形式：	THROUGH-HOLE
端子节距：	2.54 mm
端子位置：	SINGLE
处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大电压容差：	2.4%
Base Number Matches：	1

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