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/Title (NCP1546 - 1.5 A, 170 kHz, Buck Regulator with Synchronization Capability)
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2011-07-07T11:29:59-07:00
BroadVision, Inc.
2020-11-20T09:37:48+08:00
2020-11-20T09:37:48+08:00
Acrobat Distiller 9.4.5 (Windows)
application/pdf
NCP1546 - 1.5 A, 170 kHz, Buck Regulator with Synchronization Capability
ON Semiconductor
The NCP1546 is a 1.5 A buck regulator IC operating at a
fixed−frequency of 170 kHz. The device uses the V2 control
architecture to provide unmatched transient response, the best overall
regulation and the simplest loop compensation for today’s high−speed
logic. The NCP1546 accommodates input voltages from 4.0 V to 40 V
and contains synchronization circuitry.
The on−chip NPN transistor is capable of providing a minimum of
1.5 A of output current, and is biased by an external “boost” capacitor
to ensure saturation, thus minimizing on−chip power dissipation.
Protection circuitry includes thermal shutdown, cycle−by−cycle
current limiting and frequency foldback.
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