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AP7346 Datasheet

DUAL HIGH ACCURACY CURRENT LIMIT LDO

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Description
AP7346
DUAL HIGH ACCURACY CURRENT LIMIT LDO WITH ENABLE
Pin Assignments
The AP7346 is a dual high accuracy current limit ,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.
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.
Top View
654
123
With its low power consumption and line and load transient response,
the AP7346 is well suited for low power handheld communication
equipment.
The AP7346 is packaged in X2-DFN1212-6 package and allows for
smallest footprint and dense PCB layout.
Features
Low VIN and Wide VIN Range: 1.7V to 5.25V
High Accuracy Current Limit: 157mA+/- 25mA
VOUT Accuracy: ±1%
Ripple Rejection: 75dB at 1kHz
Low Output Noise: 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 35µA
VOUT Fixed 1.2V to 3.6V
Totally Lead-Free & and Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free, Green Device (Note 3)
X2-DFN1212-6
Applications
Fingerprint Modular
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
AP7346
AP7346
Document number: DS38082 Rev. 1 - 2
1 of 14
www.diodes.com
July 2015
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AP7346 Datasheet

DUAL HIGH ACCURACY CURRENT LIMIT LDO

No Preview Available !

Pin Descriptions
Pin Number
1
2
3
4
5
6
AP7346
Pin Name
VOUT1
VOUT2
GND
EN2
VIN
EN1
Thermal PAD
Function
Channel 1 output voltage pin
Channel 2 output voltage pin
Ground
Chanel 2 enable pin. This pin should be driven either high or low and must not
be floating. Driving this pin high enables channel 2 output, while pulling it low
puts Chanel 2 regulator into shutdown mode.
Power input pin
Chanel 1 enable pin. This pin should be driven either high or low and must not
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 dissipation, then connect this area to GND or leave it open. However
do not use it as GND electrode function alone.
Functional Block Diagram
EN1
VIN
EN2
With Discharge
AP7346
Document number: DS38082 Rev. 1 - 2
2 of 14
www.diodes.com
July 2015
© Diodes Incorporated


Part Number AP7346
Description DUAL HIGH ACCURACY CURRENT LIMIT LDO
Maker Diodes
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AP7346 Datasheet PDF





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