Diodes PAM3131 - Manual

PAM3131
Document number: DSxxxxx Rev. 1 - 1
1 of 14
www.diodes.com
October 2012
© Diodes Incorporated
PAM3131
A Product Line of
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 1.0 μF 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 1.0 μF 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