Diodes AP7341 - Manual

AP7341
Document number: DS36523 Rev. 3 - 2
1 of 14
www.diodes.com
May 2014
© Diodes Incorporated
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AP7341
300mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description
The AP7341 is low dropout regulator with high output voltage
accuracy, low R
DSON
, high PSRR, low output noise and low quiescent
current. This regulator is based on a CMOS process.
The AP7341 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 AP7341 is well suited for low power handheld communication
equipment.
The AP7341 is packaged in an X2-DFN1010-4 package and allows
for smallest footprint and dense PCB layout.
Features
 Low V
IN
and Wide V
IN
Range: 1.7V to 5.25V
 Guarantee Output Current,150mA

V
OUT
Accuracy ±1%

Ripple Rejection 75dB at 1kHz
 Low Output Noise, 60µVrms from 10Hz to 100kHz
 Quiescent Current as Low as 35µA

V OUT Fixed 1.2V to 3.3V
● Totally Lead-Free & and Fully RoHS Compliant (Note 1)
● Halogen and Antimony Free, Green Device (Note 2)
Pin Assignments
PIN1 – V
OUT
, PIN2 – GND, PIN3 – EN, PIN4 – V
IN
Applications

Smart Phone/Pad

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
AP7341
V
IN
EN
GND
V
OUT
V
IN
V
OUT
CIN
1.0uF
COUT
1.0uF
Figure 1 Typical Application Circuit