NCP4331 datasheet(2/23 Pages) ONSEMI

Part #	NCP4331

Description	Synchronous Buck Controller for High Efficiency Post Regulation

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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NCP4331

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2

Figure 1. Typical Application Schematic

L

LOAD2

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

+

Regulation

Block

LOAD1

HS_ DRV

VCC

VDD

LS_ DRV

GND

SYNC

BST

HB

SS

FB

Cramp

COMP

UVP

FB

VIN_FORWARD

Forward

Driver

(e.g.

NCP1280)

Vin

Rsync

Vout2

Vout1

+

CSin+

CSin-

CSout

VCC

FB

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