Diodes PAM3131 User Manual

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PAM3131
Document number: DSxxxxx Rev. 1 - 1
1 of 14
www.diodes.com
October 2012
© Diodes Incorporated
PAM3131
A Product Line o
f
Diodes Incorporated
3A ADJUSTABLE LOW VOLTAGE LOW DROPOUT CMOS REGULATOR
Description
The PAM3131 is a 3A CMOS adjustable LDO regulator that features
a low quiescent current, ultra low input, output, and dropout voltages,
as well as over temperature protection. It is available in TO-263 and
PSOP-8 (Exposed Pad) packages. The output voltage is adjustable
from 0.9V to 3.3V. The PAM3131 is stable with a ceramic output
capacitor of 1.0μF or higher.
This family of regulators can provide either a stand alone power
supply solution or act as a post regulator for switch mode power
supplies. They are particularly well suited for applications requiring
low input and output voltages.
Features
Low-Dropout Regulator Supports Input Voltages Down to 1.4V
Low Dropout Voltage: 300mV@ 3A
Output Voltage Adjustable from 0.9V-3.3V
Stable with a Ceramic Output Capacitor of 1.0μF or Higher
Low Quiescent Current
Current Limit
Over Temperature Shutdown
Short Circuit Current Protection
Low Temperature Coefficient
Standard TO-263 and PSOP-8 (Exposed Pad) Packages
Pb-Free Package
Pin Assignments
Applications
DSP, FPGA, and Microprocessor Power Supplies
1.2V Core Voltage for DSPs
SATA Power Supply
LCD TV/ Monitors
Wireless Devices
Communication Devices
Portable Electronics
Post Regulator for SMPS
Typical Applications Circuit
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Summary of Contents

Page 1 - © Diodes Incorporated

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Page 3 - Thermal Information

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Page 8

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Page 10 - Application Information

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Page 11 - Marking Information

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