ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Input Voltage

7

V

ADJ pin

PG and INH pins

-0.3 to 4

V

V

°C

°C

2

15

W

W

Storage Temperature

-40 to +150

°C

PIN FUNCTIONS

No.

Name

Function

Unregulated power input voltage; this pin must be bypassed with a capacitor larger than 10

µF.

Unregulated signal input voltage this pin has to be by passed with a minimum capacitor of 0.1

µF.

3

INH

TTL-CMOS input. A logic level on this input disable the device. An internal pull-down insures insures

full functionally even if the pin is open.

4

GND

Ground.

5

ADJ

The output is connected directly to this terminal for 1.26V operation via divider for higher voltages.

6

PG

Open drain output, this pin is low when the output voltage is lower than 90%, otherwise is high.

7

OUT

Regulated output voltage. A minimum bypass capacitor of 22

µF is required to insure stability.

1

2

3

4

5

6

7

OUT

PG

ADJ

GND

INH

D96IN373

tab connected to pin 4

PIN CONNECTION (Top view)

V

PW

PRE

REGULATOR

1.26V

+

-

E/A

OUT

ADJ

GND

PG

D96IN372A

1

3

6

4

5

7

INHIBIT

ACTIVE HIGH

1.26V

INH

V

PW

10

µF

CURRENT

LIMITATION

THERMAL

SHUTDOWN

FOLDBACK

BUFFER

CHARGE

PUMP

POWER

DMOS

150m

Ω

R1

22

µF

R2

2

BLOCK DIAGRAM

L4956

2/8