FAN5350 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FAN5350

3MHz, 600mA Step-Down DC-DC Converter in Chip-Scale and MLP Packaging

Fairchild Semiconductor 

Typical Applications

4.7µF

VIN

CIN

VIN

GND

A1 A3

B2 SW

L1

EN C1 C3 FB

1µH

VOUT

4.7µF

C OUT

Figure 1. WLCSP (top view)

PGND

1

AGND 2

VOUT

FB 3

4.7µF

COUT

P1

(GND)

L1

1µΗ

6 VIN

5 SW

4 EN

VIN

4.7µF

C IN

Figure 2. MLP (top view)

Block Diagram

EN

Bias

VIN

Current Limit

1.8V

+

Reference

Modulator

Logic

Driver

SW

FB

-

3MHz OSC

Zero Crossing

Figure 3. Block Diagram

GND

© 2007 Fairchild Semiconductor Corporation

FAN5350 Rev. 1.0.3

2

www.fairchildsemi.com

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