APW7057(2008) 데이터 시트보기 (PDF) - Anpec Electronics

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APW7057
(Rev.:2008)

High Power Step-Down Synchronous DC/DC Controller

Anpec Electronics 

APW7057

Typical Application Circuit

R3

C3

2.2

1uF

R4

8.2k

C7

470pF

Q3

5

VCC

BOOT 1

7 OCSET

2

UGATE

D1

1N4148

C4

0.1uF

Shutdown

8

PHASE

U1

6

APW7057

LGATE

4

FB

GND

3

R2

2.4k

Q1: APM2014N UC

Q2: APM2014N UC

Q3: 2N7002

C2: 1000uF/10V, ESR = 25mΩ

C5: 1000uF/6.3V, ESR = 25mΩ

Figure 2.

VIN

+

+5V

C1

C2

1uF

1000uF x2

Q1

L1

3.3uH

Q2

R1

5.1k

+

C5

VO U T

+2.5V/10A

1000uF x2

C6

0.1uF

Copyright © ANPEC Electronics Corp.

6

Rev. A.5 - Jun., 2008

www.anpec.com.tw

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