L4909 datasheet(3/7 Pages) STMICROELECTRONICS

3 / 7 page

3/7

L4909

ABSOLUTE MAXIMUM RATINGS

THERMAL DATA

ELECTRICAL CHARACTERISTICS (Cout = 100nF; Vin -Vo =5V; Io =10mA; Tcase =25°C unless otherwise

specified

Symbol

Parameter

Value

Unit

Vin

VinA,VinB input DC supply voltage

Vo1, Vo2, Vo3 output currents

internally limited

Voc

OC output voltage

min (15, Vin)

VENx

ENx input voltage

Top

Operating temperature range

0 to 70

Tstg

Storage temperature

- 40 to 150

Symbol

Parameter

Value

Unit

RTH j-case

Thermal Resistance Junction to Case

1.8

°C/W

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Vo1

REG1 output voltage range

V(FB1)

REG1 feedback voltage

EN1=ON;

1.22

1.27

1.32

Ilim1

REG1 output current limit

EN1=ON; Vin-Vo1<12V

1.20

1.70

line regulation

Io1=10mA; Vin-Vo1=3 to 25 V

Io1=10mA; Vin-Vo1=3 to 12 V

0.6

0.1

load regulation

Io1=10 mA to 1.2A

Io1=10 mA to 0.5A

0.5

0.1

Vd1

REG1 drop out

Io1=500mA

2.20

SVR1

REG1 supply voltage rejec.

freq=120 Hz to 1KHz

Vo2

REG2 output voltage range

V(FB2)

REG2 feedback voltage

EN2 = ON;

1.22

1.27

1.32

Ilim2

REG2 output current limit

EN2=ON; Vin-Vo2<12V

1.20

1.70

line regulation

Io2=10mA;Vin-Vo2=3 to 25 V

Io2=10mA;Vin-Vo2=3 to 12 V

0.6

0.1

load regulation

Io2=10 mA to 1.2A

Io2=10 mA to 0.5A

0.5

0.1

Vd2

REG2 drop out

Io2=500mA

2.2

∆V

-------------

∆V

-------------

∆V

-------------

∆V

-------------

L4909 数据表(PDF) 3 Page - STMicroelectronics

L4909 数据表(HTML) 3 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7

数据表下载

链接网址

L4909 数据表(PDF) 3 Page - STMicroelectronics

L4909 数据表(HTML) 3 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7

数据表 下载

链接网址

数据表下载