AP133

300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT

LOW DROPOUT LINEAR REGULATOR

AP133 Rev. 6

1 of 15

FEBRUARY 2009

www.diodes.com

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300mA Low Dropout Regulator with EN

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Wide input voltage range: 2V – 6V

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Adjustable output: 1V – 5V

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High PSRR: 65dB at 1kHz

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Ultra-fast start-up time: 25µs

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Stable with low ESR, 1µF ceramic output capacitor

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Excellent Load/Line Transient Response

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Low dropout: 350mV at 300mA

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Current limit protection

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Short circuit protection

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Thermal shutdown protection

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Ambient temperature range: -40ºC to 85°C

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SOT25 and DFN2020-6: Available in “Green” Molding

Compound (No Br, Sb)

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Lead Free Finish/RoHS Compliant (Note 1)

The AP133 is a 300mA, adjustable output voltage, low dropout

linear regulator. The device includes pass element, error

amplifier, band-gap, current limit and thermal shutdown circuitry.

The device is turned on when EN pin is set to logic high level.

The characteristics of low dropout voltage and less quiescent

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

battery powered devices. The typical quiescent current is

approximately 40

μA from zero to maximum load.

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

IC from damage in fault conditions.

The AP133 is available in SOT25 and DFN2020-6 packages.

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Cellular Phones

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Smart Phones, PDAs

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MP3/MP4

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Bluetooth head set

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Low power application

AP 133 - XX G - 7

Packing

Package

Green

W : SOT25

G : Green

7 : Tape & Reel

SN : DFN2020-6

Device

Package

Code

Packaging

(Note 2)

7” Tape and Reel

Quantity

Part Number Suffix

AP133-WG-7

W

SOT25

3000/Tape & Reel

-7

AP133-SNG-7

SN

DFN2020-6

3000/Tape & Reel

-7

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf.

Features

Description

Applications

Ordering Information