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AP7344D-1818RH4-7 Datasheet(PDF) 2 Page - Diodes Incorporated

Part # AP7344D-1818RH4-7
Description  DUAL 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP7344D-1818RH4-7 Datasheet(HTML) 2 Page - Diodes Incorporated

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AP7344
Document number: DS37368 Rev. 1 - 2
2 of 15
www.diodes.com
January 2015
© Diodes Incorporated
AP7344
Pin Descriptions
Pin Number
Pin Name
Function
GND
1, 4
Ground
VOUT1
2
Channel 1 Output Voltage pin
VOUT2
3
Channel 2 Output Voltage pin
EN2
5
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.
VIN2
6
Input Voltage pin
VIN1
7
Input Voltage pin
EN1
8
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.
Thermal PAD
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
Vref
R1_1
Current Limit
Error Amp.
R2_1
VOUT1
GND
VIN1
EN1
Vref
R1_2
Current Limit
Error Amp.
R2_2
VOUT2
EN2
VIN2
Vref
R1_1
Current Limit
Error Amp.
R2_1
VOUT1
GND
VIN1
EN1
Vref
R1_2
Current Limit
Error Amp.
R2_2
VOUT2
EN2
VIN2
AP7344 (No Discharge)
AP7344 (With Discharge)


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