data brief for further information contact your local stmicroelectronics sales office. april 2011 doc id 018688 rev 1 1/4 4 STEVAL-ISA088V1 1 a step-down switching regu lator based on the l5970d features max output current: 1 a output voltage from 1.235 v to 35 v operating input voltage from 4.4 v to 36 v internal switching frequency: 250 khz synchronization pin for cases where a higher frequency (up to 500 khz) is required short-circuit protection inhibit pin thermal shutdown rohs compliant description the STEVAL-ISA088V1 demonstration board provides a platform for evaluation of the l5970d, a step-down monolithic po wer switching regulator capable of delivering up to 1 a of current at output voltages from 1.2 v to 35 v. the input supply voltage of the steval- isa088v1 can range from 4.4 v to 25 v based on the rated voltage of the input capacitor, while the output voltage is adjustable from 1.235 v to v cc . STEVAL-ISA088V1 www.st.com
schematic diagram STEVAL-ISA088V1 2/4 doc id 018688 rev 1 1 schematic diagram figure 1. STEVAL-ISA088V1 circuit schematic , $ # # e r a m i c # 6 / 5 4 6 6 ) . 6 t o 6 2 2 2 # # $ 3 4 0 3 , 5 6 ) . ( 3 9 . # # / - 0 6 # # 6 2 % & / 5 4 & " ' . $ , ' ! 0 - 3 - $
STEVAL-ISA088V1 revision history doc id 018688 rev 1 3/4 2 revision history table 1. document revision history date revision changes 01-apr-2011 1 initial release.
STEVAL-ISA088V1 4/4 doc id 018688 rev 1 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2011 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
|
