RC5051 查看數據表（PDF） - Fairchild Semiconductor

零件编号

产品描述 (功能)

生产厂家

RC5051

Programmable Synchronous DC-DC Controller for Low Voltage Microprocessors

Fairchild Semiconductor 

RC5051

PRODUCT SPECIFICATION

Table 2. RC5051 Application Bill of Materials for Intel Pentium II Processors

Reference

Manufacturer Part #

Quantity Description

Requirements/Comments

C1–3, C6–C8 Panasonic

ECU-V1H104ZFX

6

100nF, 50V Capacitor

C4–5

Panasonic

ECU-V1C105ZFX

2

1µF, 16V Capacitor

Cext

Panasonic

ECU-V1H101JCG

1

100pF Capacitor

5%, C0G

CIN

Sanyo

10MV1200GX

*

1200µF, 10V Electrolytic IRMS = 2A

COUT

Sanyo

6MV1500GX

*

1500µF, 6.3V Electrolytic ESR < 44mΩ

D1

Motorola

1N4735A

1

6.2V Zener Diode

D2

Motorola

1N5820

1

3A Schottky Diode

L1

Skynet

320-6110

1

2.5µH, 11A Inductor

DCR ~ 6mΩ

See Note 1.

L2

Any

1

2.3µH, 15A inductor

DCR ~ 3mΩ

Q1–2

R1

Fairchild

FDP6030L or FDB6030L

Any

2

N-Channel MOSFET

RDS(ON) = 20mΩ @

(TO-220 or TO-263)

VGS = 4.5V See Note 2

1

47Ω

R2-3

Any

2

4.7Ω

R4

Any

1

10KΩ

RSENSE

Fairchild

RC10-XX*

1

CuNi Alloy Wire Resistor

U1

Fairchild

RC5051M

1

DC/DC Controller

* See Table 3.

Notes:

1. Inductor L1 is recommended to isolate the 5V input supply from noise generated by the MOSFET switching, and to comply

with Intel dl/dt requirements. L1 may be omitted if desired.

2. For 14.2A designs using the FDP6030L MOSFETs, heatsinks with thermal resistance ΘSA < 20°C/W should be used. For

details and a spreadsheet on MOSFET selections, refer to Applications Bulletin AB-8.

8

REV. 1.0.4 4/2/01

Share Link: