AP7361

Document number: DS33626 Rev. 9 - 2

1 of 22

www.diodes.com

October 2013

© Diodes Incorporated

AP7361

1A LOW DROPOUT ADJUSTABLE AND FIXED-MODE REGULATOR WITH ENABLE

Description

The AP7361 is a 1A, adjustable and fixed output voltage, ultra-low

dropout linear regulator with enable. The device includes pass

element, error amplifier, band-gap reference, current limit and thermal

shutdown circuitry. The device is turned on when EN pin is set to logic

high level.

The characteristics of the low dropout voltage and low quiescent

current make it suitable for low to medium power applications, for

example, laptop computers, audio and video applications, and battery

powered devices. The typical quiescent current is approximately

70µA. Built-in current-limit and thermal-shutdown functions prevent

IC from damage in fault conditions.

The AP7361 is available in U-DFN3030-8, SOT89-5, SOT223, TO252

and SO-8EP package.

Features



Wide input voltage range: 2.2V - 6V



150mV Very Low Dropout at 300mA Load



500mV Very Low Dropout at 1A Load





Adjustable Output Voltage Range: 1V to 5.0V



Fixed Output Options: 1V to 3.3V



Very Fast Transient Response



High PSRR



Accurate Voltage Regulation



Current Limiting and Short Circuit Protection



Thermal Shutdown Protection



Stable with Ceramic Output Capacitor

 2.2µF



Ambient Temperature Range -40°C to +85°C



U-DFN3030-8, SOT89-5, SOT223/SOT223R, TO252/TO252R

and SO-8EP



Available in “Green” Molding Compound (No Br, Sb)



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)



Pin Assignments

SOT223/SOT223R

( Top View )

3

2

1

2

3

2

1

TO252/TO252R

( Top View )

Applications



Servers and Laptops



FPGA and DSP Core or I/O Power



TV, and Home Electrical Appliances



Battery-Powered Devices

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

GND

OUT

IN

NC

EN

NC

NC

U-DFN3030-8

ADJ/NC

GND

(Top View)

1

2

3

4

8

7

6

5

(Top View)

EN

GND

IN

OUT

ADJ/NC

GND

SOT89-5

5

4

3

2

1