ZSPM4013

High Efficiency 3A Synchronous Buck Converter

Data Sheet

October 10, 2012

© 2012 Zentrum Mikroelektronik Dresden AG

— Rev. 1.10

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the

prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

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Parameter

Symbol

Condition

Min

Typ

Max

Unit

Soft Start Ramp Time

4

ms

PFM Mode FB Comparator

Threshold

1%

V

Threshold

91%

93%

95%

Hysteresis

UV_HYST

1.5%

103%

Hysteresis

OV_HYST

Max Duty Cycle

(See table note 2)

95%

97%

99%

1)

2)

Regulator VSW pin is forced off for 240ns every 8 cycles to ensure the BST cap is replenished.