NCP3155B regulator equivalent, 3a synchronous buck regulator.
* Input Voltage Range from 4.7 V to 24 V
* Adjustable Output Voltage
* 1 MHz Operation (NCP3155A
– 500 kHz)
* Internally Programmed 1.2 ms.
* Set Top Boxes
* DVD Drives and HDD
* LCD Monitors and TVs
* Cable Modems
* Telecom/Networking/Data.
Pin Pin Name
Description
1
PGND The PGND pin is the high current ground pin for the lower MOSFET and drivers which should be soldered to a
large copper area to reduce thermal resistance.
2
VIN
The VIN pin powers the internal control circuitry.
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