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E-L4960 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. E-L4960
Description  2.5A POWER SWITCHING REGULATOR
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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®
L4960
2.5A POWER SWITCHING REGULATOR
2.5A OUTPUT CURRENT
5.1V TO 40V OPUTPUT VOLTAGE RANGE
PRECISE (
± 2%) ON-CHIP REFERENCE
HIGH SWITCHING FREQUENCY
VERY HIGH EFFICIENCY (UP TO 90%)
VERY FEW EXTERNAL COMPONENTS
SOFT START
INTERNAL LIMITING CURRENT
THERMAL SHUTDOWN
DESCRIPTION
The L4960 is a monolithic power switching regula-
tor delivering 2.5A at a voltage variable from 5V to
40V in step down configuration.
Features of the device include current limiting, soft
start, thermal protection and 0 to 100% duty cycle
for continuous operation mode.
June 2000
ORDERING NUMBERS: L4960 (Vertical)
L4960H (Horizontal)
HEPTAWATT
BLOCK DIAGRAM
The L4960 is mounted in a Heptawatt plastic power
package and requires very few external compo-
nents.
Efficient operation at switching frequencies up to
150KHz allows a reduction in the size and cost of
external filter components.
1/16




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