LM2852Y-2.5EVAL: 2.5V @ 2A, 2.85 ~ 5.5V in, 80%

Summary

This application note describes the evaluation board for the LM2852Y. Three output voltage options are available; 1.2V, 1.8V, 2.5V; all three come with the same bill of materials. The board may be configured in multiple ways providing various enabling schemes, split-rail operation and filtering options. The LM2852 is a 2A step-down buck converter belonging to National’s SIMPLE SYNCHRONOUS® family.

Specifications

Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number 296-52382-ND
Eval Board Supplier Texas Instruments
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 2.5 V
Current Out 2 A
Voltage In 2.85 ~ 5.5 V
Efficiency @ Conditions >90%, 5V in, 2.5V @ 0.4 ~ 1.1 A
>90%, 3.3V in, 2.5V @ 0.1 ~ 1.2 A
Voltage Out Range - Fixed
Features Light Load Mode
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 500 kHz
Standby Current [Typical] 10 µA
Quiescent Current [Typical] 850 µA
Component Count + Extras 8 + 1
Internal Switch Yes
Design Author Texas Instruments
Application / Target Market Computers
Point of Load (PoL)
Portable Devices
Telecom
Standby Current [Maximum] 25 µA
Quiescent Current [Maximum] 2 mA
Main I.C. Base Part LM2852YMXA-2.5
Date Created By Author
Date Added To Library 2011-03

Support Documents & Media

AN-1149 - Layout Guidelines for SMPS AN-1197 - Selecting Inductors for Buck DC/DC LM2852Y-2.5EVAL - User Guide - AN-1343 LM2852 - Datasheet Ultra Librarian Software:CAD Symbols and Footprints (Zip File) TI's CAD/CAE Symbols and Footprint Search

Media

LM2852Y_2.5EVAL_Schematic.JPG LM2852Y_2.5EVAL_Chart.JPG