LX8941

PRODUCT DA T ABOOK 1996/1997

Copyright © 1999

Rev. 0.6

4/99

2

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Input Voltage (V

Operating Junction Temperature

Plastic (P, DD Package) ........................................................................................ 150°C

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

Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C

PACKAGE PIN OUTS

Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect

to Ground. Currents are positive into, negative out of the specified terminal.

P PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

θθθθθ

JT

4.5°C/W

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

60°C/W

DD PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

θθθθθ

JT

4.5°C/W

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

60°C/W

Junction Temperature Calculation: T

J

= T

A

+ (P

D

x

θ

JA

).

The

θ

JA

numbers are guidelines for the thermal performance of the device/pc-board system.

All of the above assume no ambient airflow.

THERMAL DATA

BLOCK DIAGRAM

* Required if regulator is located far from power supply

filter.

INPUT VOLTAGE

THERMAL

SHUTDOWN

ON/

OFF

ON

OFF

5

ON/OFF

CIRCUIT

GND

3

4

2

ADJ

V

O

1

V

IN

OUTPUT

VOLTAGE

C1*

0.1µF

C2

10µF

LX8941

ON/OFF

ADJ

GND

V

O

V

IN

P PACKAGE

(Top View)

1

5

DD PACKAGE

(Top View)

ON/OFF

ADJ

GND

V

O

V

IN

3

2

1

4

5

TAB IS GND

TAB IS GND