003F 查看數據表（PDF） - Intersil

零件编号

产品描述 (功能)

生产厂家

003F

Highly Efficient 3A Synchronous Buck Regulator

Intersil 

ISL85003, ISL85003A

Functional Block Diagram

1 SS (ISL85003A)

SYNC (ISL85003)

1

SOFT-START

CONTROL

PG

2

1.5ms

DELAY

UNDERVOLTAGE

LOCKOUT

EN

3

FB

4

POR

FAULT

MONITOR

CIRCUITS

0.8V

REFERENCE

600k

+

-

EA

30pF

COMP

5

GND DETECT

AGND

6

CSA

BOOT

REFRESH

LDO

BOOT 12

VDD

11

VIN

10

VIN

9

SLOPE COMP

+

+

-

GATE DRIVE

PHASE

8

PHASE

7

PGND

13

OSCILLATOR

DCM

DETECTOR

ZERO CROSS

DETECTOR

NEGATIVE

CURRENT

LIMIT

FIGURE 2. FUNCTIONAL BLOCK DIAGRAM

FN7968 Rev.2.00

Jan 15, 2016

Page 3 of 23

Share Link: