steval - isa146v1 4 a step - down switching evaluation board based on the st1s50 data brief features ? 4 a output current ? 4.0 v to 18 v input voltage ? output voltage adjustable from 0.8 v to 0.88 x v in ? 500 khz switching frequency ? high efficiency at light load ? programmable soft - start and enable ? integrated 95 mw and 69 mw power mosfets ? all ceramic capacitor ? power good ? cycle - by - cycle current limiting ? short - circuit protection ? hysteretical thermal shutdown ? rohs compliant description the steval - isa146v1 is a product evaluation board used to evaluate the st1s50, a 500 khz fixed - frequency pwm synchronous step - down regulator. the st1s50 operates from a 4.0 v to 18 v input, while it regulates an output voltage as low as 0.8 v and up to 0.88 x v in . april 2014 docid026180 rev 1 1 / 4 for further information contact your local stmicroelectronics sales office www.st.com
schematic diagram steval - isa146v1 1 schematic diagram figure 1 : schematic circuit 2 / 4 docid026180 rev 1 gspg07042014di 1 103
steval - isa146v1 revision history 2 revision history table 1: document revision history data revision changes 07- apr- 2014 1 initial release docid026180 rev 1 3 / 4
steval - isa146v1 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 a nd services described herein 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 assumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no lic ense, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. if an y 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 whatsoeve r of such third party products or services or any intellectual property contained therein. unless ot herwise 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 particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purc haser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for "automotive, automotive safety or medical" industry domains according to st produ ct design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statements and/or technical features set for th 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 whatso ever, 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. ? 2014 st microelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com 4 / 4 docid026180 rev 1
|
