FAN5091 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FAN5091

Two Slice Interleaved Synchronous Buck Converter

Fairchild Semiconductor 

PRODUCT SPECIFICATION

FAN5091

Table 3. FAN5091 Application Bill of Materials for Figure 2

Reference Manufacturer Part # Quantity

Description

C1-3

Panasonic

ECU-V1H104ZFX

3

100nF, 50V Capacitor

CIN

Rubycon

16ZL1000M

5

1000µF, 16V Electrolytic

COUT

Rubycon

6.3ZL1500M

8

1500µF, 6.3V Electrolytic

D1-2

Motorola

MBRB154SCT

2

15A, 45V Schottky Diode

L1

Any

Optional 1.3µH, 25A Inductor

L2-3

Q1, Q4

Q2-3, Q5-6

R1

R2

R3

R4

R5

R6-11

U1

Coiltronics

HC2-1R0

Fairchild

FDB7030BL

Fairchild

FDB7045L

Any

Any

Any

Any

Any

Any

Fairchild

FAN5091M

2

1µH, 33A Inductor

2

N-Channel MOSFET

4

N-Channel MOSFET

1

10KΩ

1

150KΩ

1

2.0KΩ

1

61.9KΩ

1

10Ω

6

4.7Ω

1

DC/DC Controller

Requirements/Comments

IRMS = 3.8A @ 65°C

ESR ≤ 23mΩ

DCR ~ 1mΩ

See Note 1.

DCR ~ 600µΩ

RDS(ON) = 9mΩ. See Note 2.

RDS(ON) = 4.5mΩ.See Note 2.

Notes:

1. Inductor L1 is recommended to isolate the 5V input supply from noise generated by the MOSFET switching. L1 may be

omitted if desired.

2. For a spreadsheet on MOSFET selections, refer to Applications Bulletin AB-8.

REV. 1.0.0 5/10/01

11

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