AP7348

Document number: DS42124 Rev. 3 - 2

1 of 15

www.diodes.com

August 2020

© Diodes Incorporated

AP7348

4 CHANNEL 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE

Description

The AP7348 is a 4 channel low dropout regulator with high output

voltage accuracy, low RDS(ON), high PSRR, low output noise and low

quiescent current. This regulator is based on a CMOS process.

The AP7348 includes two voltage references, and four channels with

each having an error amplifier, foldback current limiting, a discharge

circuit and an independent resistor network to determine the fixed

output voltage. The over temperature sensing is for each channel with

all 4 channel being disabled during a temperature fault condition. The

device has two enable inputs with EN1 controlling both VOUT1 and

VOUT3 leaving VOUT2 and VOUT4 to be controlled by EN2. During

disable the two associated channels will discharge.

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

the AP7348 is well suited for low power handheld communication

equipment.

The AP7348 is provided in the X1-DFN1612-8 (Type B) package

allowing for a small footprint and a dense PCB layout.

Features



Low VDD and Wide VDD Range: 1.7V to 5.25V



Each Channel Output Current: 300mA



VOUT Accuracy ±1%



Ripple Rejection 75dB at 1kHz



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



Total 4 Channel Quiescent Current is Typically 160µA



VOUT Fixed 1.2V to 3.6V



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



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



For automotive applications requiring specific change

control (i.e. parts qualified to AEC-Q100/101/200, PPAP

capable, and manufactured in IATF 16949 certified facilities),

please contact us or your local Diodes representative.

https://www.diodes.com/quality/product-definitions/

Pin Assignments

Applications



Smart Phone/Tablet



WIFI Access Points



Communication Module



Camera Module, Appliances



RF Supply for IOT/LPWAN

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ 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.

X1-DFN1612-8 (Type B)

(Top View)