AP7333

300mA, Low Quiescent Current, Fast Transient

Low Dropout Linear Regulator

AP7333 Rev. 2

1 of 12

NOVEMBER 2009

www.diodes.com

•

300mA Low Dropout Regulator in 3-pin package

•

•

Wide input voltage range: 2V to 6V

•

Fixed output options: 1.0V to 3.3V

•

PSRR: 65dB typical at 100Hz

•

Fast start-up time: 80µs

•

Stable with low ESR, 1µF ceramic output capacitor

•

Excellent Load/Line Transient Response

•

Low dropout: 300mV typical at 300mA

•

Current limit protection

•

Short circuit protection

•

Thermal shutdown protection

•

Ambient temperature range: -40ºC to 85°C

•

SOT23 and SOT23R: Available in “Green” Molding

Compound (No Br, Sb)

•

Lead Free Finish/RoHS Compliant (Note 1)

The AP7333 is a 300mA, fixed output voltage, low dropout linear

regulator. The device included pass element, error amplifier,

band-gap, current limit and thermal shutdown circuitry.

The characteristics of low dropout voltage and low quiescent

current make it suitable for low power applications, for example,

battery powered devices. The typical quiescent current is

approximately 65

μA.

Built-in current-limit and thermal-shutdown functions prevent IC

from damage in fault conditions.

The AP7333 is available in SOT23 packages with different

pin-outs.

Applications

•

XDSL Router

•

Wireless LAN Cards

•

Desktop and Notebook Computers

•

Battery Powered Equipments

•

Mouse, Keyboards

Typical Application Circuit

1uF

IN

GND

OUT

1uF

AP7333

Features

Description