XR76108 Datasheet, PDF (17/17 Pages) Exar Corporation – 8A and 12A Synchronous Step Down COT Regulator

XR76108 and XR76112
Revision History
Revision
1A
2A
Date
March 2014
August 2014
Description
Initial release: ECN 1413-13 03-26-14
Changed figure 1, 3, 17-20, 33-38. Extend input operating range down to 4.5V.
Changed VCC dropout conditions. Changed VCC UVLO specification. Added applications
information for operating VIN<6V. Added ESD CDM Rating. Added to SW and BST pin
definition. Removed Diode emulation write up. Added selecting the CCM mode and
selecting the DCM/CCM mode applications information. Changed CFF and RFF write up
and equations. Changed programming the TON write up and equations. On page 1 in
the general description and Features section changed minimum VIN range from 5.0V to
4.5V.
For Further Assistance:
Email: [e-mail]
Exar Technical Documentation:http://www.exar.com/TechDoc/
Exar corporation headquarters and Sales Offices
48720 Kato Road
Fremont, CA 94538 – USA
Tel.: [phone]
Fax: [phone]
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design,
performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein, conveys
no license under any patent or other right, and makes no representation that the circuits are free of patent infringement.
Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user’s specific
application. While the information in this publication has been carefully checked; no responsibility, however, is assumed for
inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or
malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its
safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing,
assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks;
(c) potential liability of EXAR Corporation is adequately protected under the circumstances.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
© 2013-2014 Exar Corporation
17/17
www.exar.com
Rev. 2A