Description
NCP3155A, NCP3155B 3 A Synchronous Buck Regulator The NCP3155 is a DC/DC synchronous switching regulator with fully integrated power switches and ful.
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.
Features
* Input Voltage Range from 4.7 V to 24 V
* Adjustable Output Voltage
* 1 MHz Operation (NCP3155A
* 500 kHz)
* Internally Programmed 1.2 ms Soft
* Start (NCP3155A
* 2.4 ms)
* 0.8 ± 1.0% Reference Voltage
* 48 mW HS
* FET and
Applications
* Set Top Boxes
* DVD Drives and HDD
* LCD Monitors and TVs
* Cable Modems
* Telecom/Networking/Datacom Equipment
4.7 V
* 24 V
VIN BST VSW
PGND
NCP3155
ISET
FB1
COMP AGND
VOUT
Figure 1. Typical Application Circuit
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