SOT – 89-3L

1. ADJ/GND

2. OUTPUT

3.IN

1A LOW DROPOUT LINEAR REGULATOR

GENERAL DESCRIPTION

The CJA1117B-XXX is a series of low dropout three-terminal regulators with a dropout of 1.15V(typ.)

at 1A output current.

The CJA1117B-XXX series provides current limiting and thermal shutdown. Its circuit includes a

trimmed bandgap. reference to assure output voltage accuracy to be within 1.5%. Current limit is trimmed

to ensure specified. output current and controlled short-circuit current. On-chip thermal shutdown

provides protection against any combination of overload and ambient temperature that would create

excessive junction temperature.

The CJA1117B-XXX has an adjustable version, that can provide the output voltage from 1.25V to 5V with

only 2 external resistors.

FEATURES

Low Dropout Voltage: 1.15V(typ.) at 1A Output Current

Trimmed Current Limit

On-Chip Thermal Shutdown

Three-Terminal Adjustable or Fixed 1.8V, 2.5V, 3.3V, 5V

Operation Junction Temperature: 0 ℃ to 125℃

APPLICATIONS

PC Motherboard

LCD Monitor

Graphic Card

DVD-Video Player

NIC/Switch

Telecom Modem

ADSL Modem

Printer and Other Peripheral Equipment

PACKAGE AND PIN CONFIGURATIONS

1 of 4

sales@zpsemi.com

www.zpsemi.com

CJA1117B-XXX