LX8940 View Datasheet(PDF) - Microsemi Corporation

Part Name

Description

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LX8940

5V Low Dropout Regulator

Microsemi Corporation 

LX8940

TM

®

5V Low Dropout Regulator

PRODUCTION DATA SHEET

ABSOLUTE MAXIMUM RATINGS

Input Voltage (VIN)......................................................................................... -15V to 26V

Maximum Operating Junction Temperature .............................................................. 150°C

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

Peak Package Solder Reflow Temp. (40 seconds max. exposure) ................. 260°C (+0,-5)

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

Ground. Currents are positive into, negative out of specified terminal. Pin numbers refer to

DIL packages only

PACKAGE PIN OUT

TAB is GND

3

Output

2

GND

1

Input

P PACKAGE

(Top View)

RoHS / Pb-free 100% matte Tin Lead Finish

THERMAL DATA

P Plastic TO-220 3-Pin

THERMAL RESISTANCE-JUNCTION TO TAB, θJT

THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA

3.0°C/W

60°C/W

Junction Temperature Calculation: TJ = TA + (PD x θJA).

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

above assume no ambient airflow.

RECOMMENDED OPERATING CONDITIONS

Parameter

Input Voltage

Load Current (with adequate heatsinking)

Maximum Line Transient (Load Dump), VO < 5.5V

Input Capacitor (VIN to GND)

Output Capacitor with ESR of 10Ω max., (VOUT to GND & VSB to GND)

Note 2: VIN(MIN) = 1.2∆V(MAX) See Dropout Voltage Maximum Limit.

Symbol

VIN

LX8940

Min Typ

Note 2

5

0.1

10

Max

26

1000

60

Units

V

mA

V

µF

µF

Copyright © 2000

Rev. 1.3a, 2005-11-18

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

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