S111-0320XYZ-BB Datasheet, PDF (9/9 Pages) C&D Technologies – DC/DC Converter 3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A

DC/D^DC^C/DC^Co^Cn^ovⁿe^vr^et^re^ter^r
Programmable, Single Output, 1.1V - 1.85Vout @ 60A
3.3V input, 0.8 to 2.5V output, 10A; 5V input, 1.0 to 3.3V output, 10A
Impact on Output Voltage Ripple and Transient Response
If the custom er’s application requires a very low output voltage ripple and / or very low
output voltage overshoot / undershoot during transients, then the guidelines previously
shown need to be exceeded and good layout practices becom e mandatory.
By using four 330 µF O SCO N capacitors, each having ESR = 17 m Ω , the output voltage
ripple can be decreased to 50 m Vpk-pk on a 1.2V output SIP. Also during a transient load
condition (load current steps from 20% to 100% and back, at 2 A / µsec) the output voltage
does not overshoot / undershoot more than 100mV.
W hen fast and deep transient loads are expected, the input capacitor becom es im portant as
well, especially if the SIP is far from its input voltage source. Capacitors having as m uch as
2000 µF and com bined ESR lower than 20 m Ω m ight be needed.
Practical results heavily depend on physical layout and specific load conditions. For critical
applications the custom er is encouraged to consult with the m anufacturer.
C&D Technologies, Inc. reserves the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. Please
check with your supplier or visit our website to ensure that you have the current and complete specification for your product before use.
© C&D Technologies, Inc. 2004
No part of this publication may be copied, transmitted, or stored in a retrieval system or reproduced in any way including, but not limited to, photography,
photocopy, magnetic or other recording means, without prior written permission from C&D Technologies, Inc.
Instructions for use are available from: www.cdtechno-cps.com
1150 Eglinton Avenue East
Toronto, Ontario M3C 1H7
1-866-740-1232
S111_084-S111-00_RevG_Jan18-2005.fm
www.cdtechno-cps.com
4607 S.E. International Way
Milwaukie, Oregon 97222
1-971-206-2800
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