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AP7340
150mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description
The AP7340 is a
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 AP7340 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 AP7340 is well
suited for low power handheld communication
equipment.
The AP7340 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, 60uVrms from 10Hz to 100kHz
● Quiescent current as low as 35µA
● V
OUT
fixed 1.1V to 3.3V
● Totally Lead-Free & and Fully RoHS Compliant
(Notes 1 & 2)
● Halogen and Antimony Free, Green Device (Note 3)
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
AP7340
V
IN
EN
GND
V
OUT
V
IN
V
OUT
CIN
0.47uF
COUT
0.47uF
Figure 1 Typical Application Circuit
AP7340
Document number: DS35282 Rev. 4 - 2
1 of 15
www.diodes.com
July 2014
© Diodes Incorporated
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