© Semiconductor Components Industries, LLC, 2010

February, 2010 − Rev. 9

1

Publication Order Number:

CAT6219/D

CAT6219

500 mA CMOS LDO

Regulator

Description

The CAT6219 is a 500 mA CMOS low dropout regulator that

provides fast response time during load current and line voltage

changes.

The quick-start feature allows the use of an external bypass

capacitor to reduce the overall output noise without affecting the

turn-on time of just 150

ms.

With zero shutdown current and low ground current of 55

mA

typical, the CAT6219 is ideal for battery-operated devices with supply

voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit

disables the output at supply voltages under 2.15 V typical.

The CAT6219 offers 1% initial accuracy and low dropout voltage,

300 mV typical at 500 mA. Stable operation is provided with a small

value ceramic capacitor, reducing required board space and

component cost.

Other features include current limit and thermal protection.

The LDO is available in fixed and adjustable output in the low

profile (1 mm max height) 5−lead TSOT23 and in the 6−pad 2 mm x

2 mm TDFN packages.

Features

Compliant

Applications

http://onsemi.com

TSOT−23

TD SUFFIX

CASE 419AE

PIN CONNECTIONS

RVYM

MARKING DIAGRAMS

1

5

VOUT

BYP/ADJ

VIN

GND

EN

1

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

TDFN−6

VP5 SUFFIX

CASE 511AH

1

ABYM

1

VOUT

BYP/ADJ

NC

VIN

GND

EN

TAB

(Top View)

AB = CAT6219180, CAT6219VP5 Device Code

Y = Production Year (last digit)

M = Production Month: 1 − 9, A, B, C

US= CAT6219−125, CAT6219−250,

RV = CAT6219−180, CAT6219−280,

UM = CAT6219−ADJ Device Code

Y = Production Year (last digit)

M = Production Month: 1 − 9, A, B, C

USYM

UMYM