AP7343

Document number: DS37952 Rev. 2 - 2

1 of 16

www.diodes.com

December 2015

© Diodes Incorporated

AP7343

300mA HIGH PSRR LOW NOISE LDO WITH ENABLE

Description

The AP7343 is a low dropout regulator with high output voltage

current. This regulator is based on a CMOS process.

The AP7343 includes a voltage reference, error amplifier, current limit

circuit and an enable input to turn it on and off. With the integrated

resistor network fixed output voltage versions can be delivered.

With its low power consumption and line and load transient response,

the AP7343 is well suited for low power handheld communication

equipment.

The AP7343 is packaged in an X2-DFN1010-4 package and allows

for smallest footprint and dense PCB layout.

Features





Guarantee Output Current: 300mA





Ripple Rejection 75dB at 1kHz



Low Output Noise, 60µVrms from 10Hz to 100kHz



Quiescent Current as Low as 35µA





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



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

Pin Assignments

PIN1

Applications



Smart Phone/tablet



RF Supply



Cameras



Portable Video



Portable Media Player



Wireless Adapter



Wireless Communication

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.

Typical Applications Circuit

Figure 1 Typical Application Circuit