LX8383-xx/8383A-xx/8383B-xx

PRODUCT DA T ABOOK 1996/1997

Copyright © 1996

Rev. 1.0

12/96

2

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Power Dissipation .................................................................................. Internally Limited

Input Voltage ................................................................................................................ 10V

Input to Output Voltage Differential ........................................................................... 10V

Operating Junction Temperature

Plastic (P & V Packages) ....................................................................................... 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.

V

IN

V

OUT

ADJ / GND*

3

2

1

P PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

θθθθθ

JT

2.7°C/W

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

60°C/W

V PACKAGE:

THERMAL RESISTANCE-JUNCTION TO TAB,

θθθθθ

JT

1.6°C/W

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

35°C/W

Junction Temperature Calculation: T

The

θ

All of the above assume no ambient airflow.

THERMAL DATA

V

IN

V

OUT

ADJ / GND*

3

2

1

V PACKAGE

(Top View)

* Pin 1 is GND for fixed voltage versions.

BLOCK DIAGRAM

Thermal

Limit Circuit

Control

Circuit

Bandgap

Circuit

Output

Circuit

Bias

Circuit

V

OUT

V

IN

SOA Protection

Circuit

Current

Limit Circuit

ADJ or

GND*

TAB IS V

OUT

TAB ON REVERSE SIDE IS V

OUT

P PACKAGE

(Top View)

* Pin 1 is GND for fixed voltage versions.

* This pin GND for fixed voltage versions.