AP7345D
DUAL 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description Pin Assignments
The AP7345D is a Dual low dropout regulator with high output voltage
accuracy, low R , high PSRR, low output noise and low quiescent
DSON
(Top View)
current. This regulator is based on a CMOS process.
Each of regulators includes a voltage reference, error amplifier,
current limit circuit and an enable input to turn on/ off output. With the
integrated resistor network fixed output voltage versions can be
delivered.
With its low power consumption and line and load transient response,
the AP7345D is well suited for low power handheld communication
equipment.
The AP7345D is packaged in X2-DFN1612-8 package and allows for
X2-DFN1612-8
smallest footprint and dense PCB layout.
Features
Applications
Low V and Wide V Range: 1.7V to 5.25V
IN IN
Smart Phone/PAD
Guarantee Each Channel Output Current: 300mA
RF Supply
V Accuracy 1%
OUT
Cameras
Ripple Rejection: 75dB at 1kHz
Portable Video
Low Output Noise: 60Vrms from 10Hz to 100kHz
Portable Media Player
Quiescent Current as Low as 50A
Wireless Adapter
V Fixed 1.2V to 3.6V
OUT
Wireless Communication
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free, Green Device (Note 3)
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
AP7345D
Pin Descriptions
Pin Number Pin Name Function
GND 1, 4 Ground
V 2 Channel 1 Output Voltage pin
OUT1
V 3 Channel 2 Output Voltage pin
OUT2
Chanel 2 Enable pin. This pin should be driven either high or low and must not
EN2 5 be floating. Driving this pin high enables channel 2 output, while pulling it low
puts Chanel 2 regulator into shutdown mode.
V 6 Channel 2 Input Voltage pin
IN2
V
IN1 7 Channel 1 Input Voltage pin
Chanel 1 Enable pin. This pin should be driven either high or low and must not
EN1 8 be floating. Driving this pin high enables channel 1 output, while pulling it low
puts Chanel 1 regulator into shutdown mode.
In PCB layout, prefer to use large copper area to cover this pad for better
Thermal PAD thermal dissipation, then connect this area to GND or leave it open. However do
not use it as GND electrode function alone.
Functional Block Diagram
V
IN1 V
OUT1
R1_1
Error Amp.
R2_1
Vref
Current Limit
EN1 GND
V
IN2
R1_2
Error Amp.
R2_2
Vref
Current Limit
EN2 V
OUT2
2 of 15
AP7345D December 2018
Diodes Incorporated
www.diodes.com
Document number: DS41528 Rev. 1 - 2
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