KA7912TU各脚功能电路原理芯片引脚定义引脚图及功能IC贸易商-中国IC网-芯三七

当前位置：IC37首页_>K字母起始型号索引_>K字母起始型号索引第141页更新时间：2025-01-22 11:30:18

产品型号KA7912TU的概述

芯片KA7912TU的概述 KA7912TU是一种集成电路（IC），主要用于固定的负电压输出稳压器。该芯片广泛应用于各种电子设备中，如电源管理、音频设备和通信器材等。KA7912TU的设计特点是提供稳定的电压，具有较高的性能和可靠性，使其在现代电子设备中成为了一个重要的组件。 KA7912TU的输出电压为-12V，这使它适合需要负电压的电路应用。其输入电压范围通常可以承受-14V至-35V之间，这种宽范围的电压输入能力使其在不同的电源环境中有良好的适应性。芯片KA7912TU的详细参数 1. 工作电压范围： - 输入电压（Vin）：-14V 至 -35V - 输出电压（Vout）：-12V（固定） 2. 输出电流： - 典型输出电流（Iout）：1A - 最大输出电流：1.5A（需适当散热时才能保证） 3. 功耗： - 最大功耗约为15W（在适当散热条件...

产品型号KA7912TU的Datasheet PDF文件预览

August 2013

KA79XX / KA79XXA / LM79XX

3-Terminal 1 A Negative Voltage Regulator

Description

Features

The KA79XX / KA79XXA / LM79XX series of three-termi-

nal negative regulators are available in a TO-220 pack-

age with several fixed output voltages, making them

useful in a wide range of applications. Each type employs

internal current limiting, thermal shutdown, and safe

operating area protection.

• Output Current in Excess of 1 A

• Output Voltages of: -5 V, -6 V, -8 V, -9 V, -12 V, -15 V,

-18 V, -24 V

• Internal Thermal Overload Protection

• Short-Circuit Protection

• Output Transistor Safe Operating Area Compensation

TO-220

Input

1. GND 2. Input 3. Output

Ordering Information

Output Voltage

Operating

Packing Method

Product Number

Package

Tolerance

Temperature

KA7905TU

KA7906TU

KA7908TU

KA7909TU

KA7912TU

KA7915TU

KA7918TU

KA7924TU

KA7912ATU

KA7915ATU

LM7905CT

LM7908CT

LM7909CT

LM7910CT

LM7912CT

LM7915CT

LM7918CT

±4%

TO-220

(Dual Gauge)

Rail

0 to +125°C

±2%

±4%

TO-220

(Single Gauge)

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Block Diagram

GND

VOLTAGE

REFERENCE

OOuutptut

PROTECTION

CIRCUITRY

Rsc

Input

Figure 1. Block Diagram

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only. Values are at T_A= 25°C unless otherwise noted.

Symbol

V_I

Parameter

Value

Unit

Input Voltage

-35

R_θJC

R_θJA

T_OPR

T_STG

Thermal Resistance, Junction-Case⁽¹⁾

Thermal Resistance, Junction-Air^{(1, 2)}

Operating Temperature Range

Storage Temperature Range

°C/W

°C

0 to +125

- 65 to +150

°C

Notes:

1. Thermal resistance test board, size: 76.2 mm x 114.3 mm x 1.6 mm(1S0P), JEDEC standard:

JESD51-3, JESD51-7.

2. Assume no ambient airflow.

www.fairchildsemi.com

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

Electrical Characteristics (KA7905 / LM7905)

(V_I= -10 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O= 1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ.

Max. Unit

T_J= +25°C

-4.80

-5.00

-5.20

V_O

I_O= 5 mA to 1 A, P_{O ≤}15 W,

V_I= -7 V to -20 V

-4.75

-5.00

-5.25

V_I= -7 V to -25 V

V_I= -8 V to -12 V

100

ΔV_O

Line Regulation⁽³⁾

T_J= +25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J=+25°C, I_O= 250 mA to 750 mA

T_J=+25°C

100

ΔV_O

I_Q

Load Regulation⁽³⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

0.80

Quiescent Current

Change

ΔI_Q

V_I= -8 V to -25 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.4

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, ΔV_I= 10 V

T_J=+25°C, I_O= 1 A

T_J=+25°C, V_I= -35 V

T_J=+25°C

μV

300

2.2

Note:

3. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7906)

(V_I= -11 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O= 1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J=+25°C

-5.75

-6.00

-6.25

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W,

V_I= -9 V to -21 V

-5.70

-6.00

-6.30

V_I= -8 V to -25 V

V_I= -9 V to -13 V

120

ΔV_O

Line Regulation⁽⁴⁾

T_J= +25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J= +25°C, I_O= 250 mA to 750 mA

T_J= +25°C

120

ΔV_O

I_Q

Load Regulation⁽⁴⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.30

Quiescent Current

Change

ΔI_Q

V_I= -8 V to -25 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.5

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A=+25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J= +25°C, V_I= -35 V

T_J= +25°C

130

μV

300

2.2

Note:

4. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7908 / LM7908)

(V_I= -14 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O=1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J=+25°C

-7.7

-8.0

-8.3

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W,

V_I= -10 V to -23 V

-7.6

-8.0

-8.4

V_I= -10.5 V to -25 V

V_I= -11 V to -17 V

160

ΔV_O

Line Regulation⁽⁵⁾

T_J= +25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J= +25°C, I_O= 250 mA to 750 mA

T_J= +25°C

160

ΔV_O

I_Q

Load Regulation⁽⁵⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -10.5 V to -25 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.6

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, ΔV_I= 10 V

T_J=+25°C, I_O= 1 A

T_J=+25°C, V_I= -35 V

T_J= +25°C

175

μV

300

2.2

Note:

5. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7909 / LM7909)

(V_I= -15 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O=1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-8.7

-9.0

-9.3

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W,

V_I= -1.5 V to -23 V

-8.6

-9.0

-9.4

V_I= -11.5 V to -26 V

V_I= -12 V to -18 V

180

ΔV_O

Line Regulation⁽⁶⁾

T_J=+25°C

T_J=+25°C, I_O= 5 mA to 1.5 A

T_J=+25°C, I_O= 250 mA to 750 mA

T_J= +25°C

180

ΔV_O

I_Q

Load Regulation⁽⁶⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -11.5 V to -26 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.6

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J= +25°C, V_I= -35 V

T_J= +25°C

175

μV

300

2.2

Note:

6. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (LM7910)

(V_I= -17 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O=1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-9.6

-10.0

-10.4

V_O

I_O= 5 mA to 1A, P_d≤ 15 W,

V_I= -12 V to -28 V

-9.5

-10.0

-10.5

V_I= -12.5 V to -28 V

V_I= -14 V to -20 V

200

100

ΔV_O

Line Regulation⁽⁷⁾

T_J= +25°C

T_J= +25°C,

200

100

I_O= 5 mA to 1.5 A

Load Regulation⁽⁷⁾

Quiescent Current

T_J= +25°C,

I_O= 250 mA to 750 mA

I_Q

T_J= +25°C

I_O= 5 mA to 1 A

V_I= -12.5 V to -28 V

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

Temperature Coefficient

of V_O

ΔVo/ΔT

I_O= 5 mA

-1

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

10 Hz ≤ f ≤ 100 kHz, T_A=+25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J= +25°C, V_I= -35 V

T_J= +25°C

280

μV

300

2.2

Note:

7. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7912 / LM7912)

(V_I= -19 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O= 1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ.

Max.

Unit

T_J= +25°C

-11.5

-12.0

-12.5

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W

V_I= -15.5 V to -27 V

-11.4

-12.0

-12.6

V_I= -14.5 V to -30 V

V_I= -16 V to -22 V

240

120

240

120

ΔV_O

Line Regulation⁽⁸⁾

T_J= +25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J=+25°C, I_O= 250 mA to 750 mA

T_J=+25°C

ΔV_O

I_Q

Load Regulation⁽⁸⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -14.5 V to -30 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.8

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A=+25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J= +25°C, V_I= -35 V

T_J= +25°C

200

μV

300

2.2

Note:

8. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7915 / LM7915)

(V_I= -23 V, I_O= 500 mA, 0°C ≤T_J≤ +125°C, C_I= 2.2 μF, C_O= 1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-14.40 -15.00 -15.60

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W

V_I= -18 V to -30 V

-14.25 -15.00 -15.75

V_I= -17.5 V to -30 V

V_I= -20 V to -26 V

300

150

300

150

ΔV_O

Line Regulation⁽⁹⁾

T_J= +25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J=+25°C, I_O= 250 mA to 750 mA

T_J=+25°C

ΔV_O

I_Q

Load Regulation⁽⁹⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -17.5 V to -30 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.9

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J= +25°C, V_I= -35 V

T_J= +25°C

250

μV

300

2.2

Note:

9. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7918 / LM7918)

(V_I= -27 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O=1 μF, unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-17.3

-18.0

-18.7

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W

V_I= -22.5 V to -33 V

-17.1

-18.0

-18.9

V_I= -21 V to -33 V

V_I= -24 V to -30 V

360

180

360

180

ΔV_O

Line Regulation⁽¹⁰⁾

T_J= +25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J= +25°C, I_O= 250 mA to 750 mA

T_J= +25°C

ΔV_O

I_Q

Load Regulation⁽¹⁰⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -21 V to -33 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-1

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J= +25°C, V_I= -35 V

T_J=+25°C

300

μV

300

2.2

Note:

10. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7924)

(V_I= -33 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O= 1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-23.0

-24.0

-25.0

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W,

V_I= -27 V to -38 V

-22.8

-24.0

-25.2

V_I= -27 V to -38 V

V_I= -30 V to -36 V

480

180

480

240

ΔV_O

Line Regulation⁽¹¹⁾

T_J=+25°C

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J= +25°C, I_O= 250 mA to 750 mA

T_J= +25°C

ΔV_O

I_Q

Load Regulation⁽¹¹⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -27 V to -38 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-1

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A=+25°C

f = 120 Hz, ΔV_I= 10 V

T_J=+25°C, I_O= 1 A

T_J=+25°C, V_I= -35 V

T_J=+25°C

400

μV

300

2.2

Note:

11. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7912A)

(V_I= -19 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O=1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J=+25°C

-11.75 -12.00 -12.25

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W,

V_I= -15.5 V to -27 V

-11.50 -12.00 -12.50

V_I= -14.5 V to -27 V,

Io = 1 A

120

T_J= +25°C

V_I= -16 V to -22 V,

Io = 1 A

ΔV_O

Line Regulation⁽¹²⁾

V_I= -14.8 V to -30 V

120

150

V_I= -16 V to -22 V, Io = 1 A

T_J=+25°C, I_O= 5 mA to 1.5 A

T_J=+25°C, I_O= 250 mA to 750 mA

T_J=+25°C

ΔV_O

I_Q

Load Regulation⁽¹²⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -15 V to -30 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.8

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A=+25°C

f = 120 Hz, ΔV_I= 10 V

T_J=+25°C, I_O= 1 A

T_J=+25°C, V_I= -35 V

T_J=+25°C

200

μV

300

2.2

Note:

12. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Electrical Characteristics (KA7915A)

(V_I= -23 V, I_O= 500 mA, 0°C ≤ T_J≤ +125°C, C_I= 2.2 μF, C_O= 1 μF; unless otherwise specified.)

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-14.7

-15.0

-15.3

V_O

I_O= 5 mA to 1 A, P_O≤ 15 W,

V_I= -18 V to -30 V

-14.4

-15.0

-15.6

V_I= -17.5 V to -30 V,

Io = 1 A

150

T_J=+25°C

V_I= -20 V to -26 V,

Io = 1 A

ΔV_O

Line Regulation⁽¹³⁾

V_I= -17.9 V to -30 V

150

V_I= -20 V to -26 V, Io = 1 A

T_J= +25°C, I_O= 5 mA to 1.5 A

T_J= +25°C, I_O= 250 mA to 750 mA

T_J=+25°C

ΔV_O

I_Q

Load Regulation⁽¹³⁾

Quiescent Current

_O= 5 mA to 1 A

0.05

0.10

0.50

1.00

Quiescent Current

Change

ΔI_Q

V_I= -18.5 V to -30 V

Temperature Coefficient

of V_D

ΔVo/ΔT

I_O= 5 mA

-0.9

mV/°C

V_N

V_D

I_SC

I_PK

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short-Circuit Current

Peak Current

f = 10 Hz to 100 kHz, T_A=+25°C

f = 120 Hz, ΔV_I= 10 V

T_J= +25°C, I_O= 1 A

T_J=+25°C, V_I= -35 V

T_J=+25°C

250

μV

300

2.2

Note:

13. Load and line regulation are specified at constant junction temperature. Changes in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Typical Performance Characteristics

5. 1

Vin=10V

Io=1.5A

gul

ati

Io=40mA

5. 05

lta

4. 95

4. 9

Vin=25V

- 1

- 3

- 5

Io=100mA

Io=0.75A

4. 85

4. 8

- 40

- 25

100

125

- 40

- 25

100

125

T_A, Ambient Temperature [^oC]

Figure 2. Output Voltage

Figure 3. Load Regulation

4. 5

3. 5

2. 5

1. 5

Io=1A

1. 5

0. 5

- 40

- 25

100

125

- 40 - 25

100 125

T_A, Ambient Temperature [^oC]

Figure 4. Quiescent Current

Figure 5. Dropout Voltage

0. 6

0. 55

0. 5

0. 45

0. 4

0. 35

0. 3

0. 25

0. 2

0. 15

0. 1

ort

Cir

cui

rre

0. 05

[A]

- 0. 05

- 0. 1

- 40

- 25

100

125

T , Ambient Temperature [ C]

Figure 6. Short-Circuit Current

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Typical Applications

1 μF

2.2 μF

C_I

KA79XX

LM79XX

Input

Output

Figure 7. Negative Fixed Output Regulator

KA7812

LM7812

+15 V

+12 V

1N4001

0.33 μF

1 μF

GND

μF

2.2

1 μF

1N4001

KA7912

LM7912

-12 V

-15 V

Figure 8. Split Power Supply (±12 V / 1 A)

Notes:

14. To specify an output voltage, substitute voltage value for "XX".

15. C_Iis required if the regulator is located an appreciable distance from the power supply filter. For value given,

capacitor must be solid tantalum. If aluminium electronics are used, at least ten times the value shown should be

selected.

16. C_Oimproves stability and transient response. If large capacitors are used, a high-current diode from input to

output (1N4001 or similar) should be introduced to protect the device from momentary input short circuit.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Physical Dimensions

TO-220 (SINGLE GAUGE)

Figure 9. TO-220, MOLDED, 3-LEAD, JEDEC VARIATION AB (ACTIVE)

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/dwg/TO/TO220B03.pdf.

For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:

http://www.fairchildsemi.com/packing_dwg/PKG-TO220B03_TC.pdf.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

Physical Dimensions (Continued)

TO-220 (DUAL GAUGE)

Figure 10. TO-220, MOLDED, 3LD, JEDEC VARIATION AB (ACTIVE)

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/dwg/TO/TO220Y03.pdf.

For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:

http://www.fairchildsemi.com/packing_dwg/PKG-TO220Y03.pdf.

KA79XX / KA79XXA / LM79XX Rev. 1.1.0

www.fairchildsemi.com

TRADEMARKS

The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not

intended to be an exhaustive list of all such trademarks.

Sync-Lock™

2CoolA

FPSA

AccuPowerA

F-PFSA

®*

AX-CAP^®*

BitSiCA

Build it NowA

CorePLUSA

CorePOWERA

CROSSVOLTA

CTLA

FRFET^®

PowerTrench^®

PowerXS™

Programmable Active DroopA

QFET^®

Global Power Resource^SM

GreenBridgeA

Green FPSA

Green FPSA e-SeriesA

GmaxA

TinyBoost^®

TinyBuck^®

TinyCalcA

TinyLogic^®

TINYOPTOA

TinyPowerA

TinyPWMA

TinyWireA

TranSiCA

QSA

Quiet SeriesA

RapidConfigureA

GTOA

IntelliMAXA

Current Transfer LogicA

DEUXPEED^®

Dual Cool™

EcoSPARK^®

EfficientMaxA

ISOPLANARA

Making Small Speakers Sound Louder

and Better™

Saving our world, 1mW/W/kW at a time™

SignalWiseA

SmartMaxA

TriFault DetectA

TRUECURRENT^®*

ꢀSerDesA

MegaBuckA

SMART STARTA

Solutions for Your SuccessA

SPM^®

ESBCA

MICROCOUPLERA

MicroFETA

MicroPakA

Fairchild^®

UHC^®

Ultra FRFETA

UniFETA

VCXA

VisualMaxA

VoltagePlusA

XS™

STEALTHA

MicroPak2A

Fairchild Semiconductor^®

FACT Quiet SeriesA

FACT^®

SuperFET^®

MillerDriveA

SuperSOTA-3

MotionMaxA

mWSaver^®

SuperSOTA-6

FAST^®

SuperSOTA-8

OptoHiTA

SupreMOS^®

FastvCoreA

OPTOLOGIC^®

OPTOPLANAR^®

FETBenchA

SyncFETA

* Trademarks of System General Corporation, used under license by Fairchild Semiconductor.

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE

RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT

OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE

SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN,

WHICH COVERS THESE PRODUCTS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE

EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.

As used herein:

1. Life support devices or systems are devices or systems which, (a) are

intended for surgical implant into the body or (b) support or sustain

life, and (c) whose failure to perform when properly used in

accordance with instructions for use provided in the labeling, can be

reasonably expected to result in a significant injury of the user.

2. A critical component in any component of a life support, device, or

system whose failure to perform can be reasonably expected to

cause the failure of the life support device or system, or to affect its

safety or effectiveness.

ANTI-COUNTERFEITING POLICY

Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,

under Sales Support.

Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their

parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed

applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the

proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild

Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors

are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical

and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise.

Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global

problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.

PRODUCT STATUS DEFINITIONS

Definition of Terms

Datasheet Identification

Product Status

Definition

Datasheet contains the design specifications for product development. Specifications may change

in any manner without notice.

Advance Information

Formative / In Design

Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild

Semiconductor reserves the right to make changes at any time without notice to improve design.

Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make

changes at any time without notice to improve the design.

Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.

The datasheet is for reference information only.

Preliminary

No Identification Needed

Obsolete

First Production

Full Production

Not In Production

Rev. I65

www.fairchildsemi.com

KA7912TU相关文章

配单直通车

深圳市芯福林电子有限公司服务专线: 13418564337 在线联系:

QQ：2881495808 复制

QQ：308365177 复制

深圳市中利达电子科技有限公司服务专线: 0755-13686833545 在线联系:

QQ：1902134819 复制

QQ：2881689472 复制

首天国际（深圳）科技有限公司服务专线: 0755-82807802/82807803 在线联系:

QQ：528164397 复制

QQ：1318502189 复制

柒号芯城电子商务（深圳）有限公司服务专线: 18922803401 在线联系:

QQ：2881677436 复制

QQ：2881620402 复制

北京元坤伟业科技有限公司服务专线: 010-62104931621064316210489162104791 在线联系:

QQ：857273081 复制

QQ：1594462451 复制

KA7912TU产品参数

型号:	KA7912TU
Brand Name：	Fairchild Semiconductor
是否无铅：	不含铅
是否Rohs认证：	符合
生命周期：	Transferred
零件包装代码：	TO-220
包装说明：	, SIP3,.1TB
针数：	3
制造商包装代码：	TO220, MOLDED, 3LD, NON-JEDEC, VARIATION AB [DUAL GUAGE]
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
风险等级：	7.73
Is Samacsys：	N
可调性：	FIXED
最大绝对输入电压：	35 V
最大输入电压：	30 V
最小输入电压：	14.5 V
JESD-30 代码：	R-PSFM-T3
JESD-609代码：	e3
最大电网调整率：	0.24%
最大负载调整率：	0.24%
功能数量：	1
输出次数：	1
端子数量：	3
工作温度TJ-Max：	125 °C
工作温度TJ-Min：
最大输出电流 1：	1 A
最大输出电压 1：	12.6 V
最小输出电压 1：	11.4 V
标称输出电压 1：	12 V
封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SIP3,.1TB
封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT
包装方法：	RAIL
峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified
调节器类型：	FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR
子类别：	Other Regulators
表面贴装：	NO
技术：	BIPOLAR
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：	5%
Base Number Matches：	1

电子百科

产品导航

产品型号KA7912TU的概述

产品型号KA7912TU的Datasheet PDF文件预览

KA7912TU相关产品..

KA7912TU相关文章

IC37:专业IC行业平台