L4949 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

L4949

MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR

STMicroelectronics 

L4949E

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

VSDC DC Operating Supply Voltage

VSTR Transient Supply Voltage (T < 1s)

IO

VO

VRES, VSO

Output Current

Output Voltage

Output Voltage

IRES, ISO Output Current

VZ

Preregulator Output Voltage

IZ

Preregulator Output Current

TJ

Junction Temperature

Tstg Storage Temperature Range

Note: The circuit is ESD protected according to MIL-STD-883C

THERMAL DATA

Symbol

Rth j-amb

Rth j-pins

TJSD

Description

Thermal Resistance Junction-ambient

Thermal Resistance Junction-pins

Thermal Shutdown Junction temperature

Value

Unit

28

V

40

V

Internally Limited

20

V

20

V

5

mA

7

V

5

mA

-40 to +150

°C

-55 to +150

°C

Minidip

Max

100

Max

SO-8

200

165

SO20L

50

15

Unit

°C/W

°C/W

°C

PIN CONNECTIONS

VS

1

SI

2

VZ

3

CT

4

8

VOUT

7

SO

6

RES

5

GND

D95AT217

MINIDIP/SO8

2/10

VZ

CT

N.C.

GND

GND

GND

GND

N.C.

N.C.

RES

1

20

2

19

3

18

4

17

5

16

6

15

7

14

8

13

9

12

10

11

D95AT218

SO20

SI

VS

N.C.

GND

GND

GND

GND

N.C.

VOUT

SO

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