US1207-33CM 参数 Datasheet PDF下载

US1206/1207/1208/1209

ABSOLUTE MAXIMUM RATINGS

Input Voltage (Vin) ............................................................. 12V

Enable Input Voltage ........................................................... 12V

Storage Temperature Range ................................ -65°C TO 150°C

Operating Junction Temperature Range ...................... 0°C TO 135°C

PACKAGE INFORMATION

5 PIN PLASTIC TO263 ( M ) or 5 PIN POWER FLEX (P)

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FRONT VIEW

5

4

3

2

1

FRONT VIEW

FRONT VIEW

3 PIN PLASTIC TO263 ( M )

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FRONT VIEW

Flag

Vout

Gnd

Vin

Enable

5

4

3

2

1

Adj

Vout

Gnd

Vin

Flag

5

4

3

2

1

Adj

Vout

Gnd

Vin

Enable

3

Vout

Gnd

Vin

2

1

θ

JA

=35°C/W for 0.5" square pad

8 PIN PLASTIC POWER SOIC ( S )

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TOP VIEW

TOP VIEW

θ

JA

=35°C/W for 0.5" square pad

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TOP VIEW

Enable

Vin

Vout

Flag

1

2

3

4

8

7

6

5

Gnd

Gnd

Gnd

Gnd

Flag

Vin

Vout

Adj

1

2

3

4

8

7

6

5

Gnd

Gnd

Gnd

Gnd

Enable

Vin

Vout

Adj

1

2

3

4

8

7

6

5

Gnd

Gnd

Gnd

Gnd

θ

JA

=55°C/W for 1" Sq pad

3 PIN PLASTIC TO252 ( D )

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FRONT VIEW

3

3 PIN PLASTIC SOT223 ( Y )

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TOP VIEW

3

Vout

Vout

Gnd

Vin

Tab is

Gnd

4

θ

JA

=70°C/W for

0.5" Sq pad

1

Tab is

Gnd

2

1

θ

JA

=90°C/W for

0.4" Sq pad

Vin

Unless otherwise specified ,these specifications apply over ,Cin=Cout=10uF,Vin=Vo+1V, Vout=Vfb (for adjustable

version only), and Ta=25

°C.

Typical values refer to Ta=25

°C.Low

duty cycle pulse testing are used which keeps

junction and case temperatures equal to the ambient temperature.

PARAMETER

SYM TEST CONDITION

MIN

TYP MAX

UNITS

Reference Voltage

Vo

Io=10mA

-1

1

%

See Table 1 for typical values

(Note 4)

-2

2

Line Regulation

dVi

Vo+1V<Vin<12

0.06

%/V

Load Regulation (note 1)

dVL

10mA<Io<1A

0.7

%

1mA<Io<150mA

0.5

%

Output voltage Temp Coef.

dVoT

20

100

ppm/°C

Dropout Voltage (note 2)

dVio

Io=100mA (Note 4)

100

200

mV

Io=500mA (Note 4)

300

400

mV

Io=1000mA (Note 4)

500

650

mV

Ground Current (Note 3)

Iq

Vin=Vo +1

Io=100mA (Note 4)

3

mA

Io=500mA (Note 4)

15

mA

Io=1000mA (Note 4)

50

mA

Current Limit

Icl

Vo=0V

1.1

A

Minimum Input Voltage

Vinmin

2.1

2.3

V

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Adjust Pin Current

Iadj

Vin=2.5V,Vo=Vadj (Note 4)

0.1

uA

Minimum Load Current

Iomin

1

mA

ELECTRICAL SPECIFICATIONS

2-2

Rev. 1.1

6/26/00