RC5052 查看數據表（PDF） - Fairchild Semiconductor

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RC5052

High Performance Programmable Synchronous DC-DC Controller for Low Voltage Microprocessors

Fairchild Semiconductor 

PRODUCT SPECIFICATION

RC5052

Table 3. RC5052 Application Bill of Materials for Coppermine/Camino Processors

(Typical Design)

Reference

C1

C2, C5

C3-4,6

CIN

COUT

D1

L1

L2

Q1-2

Q3

R1

R2-3

R4

R5

R6

R7

R8

R9

R10

F1

U1

Manufacturer Part #

AVX

TAJB475M010R5

Panasonic

ECU-V1C105ZFX

Panasonic

ECU-V1H104ZFX

Sanyo

10MV1200GX

Sanyo

6MV1500GX

Fairchild

MBRD835L

Any

Quantity

1

2

3

3

8

1

Optional

Any

Fairchild

FDP6030L or

FDB6030L

Motorola

2N6394

Any

Any

Any

Any

Any

Any

N/A

Any

Any

Littelfuse

R251 005

Fairchild

RC5052M

1

2

Optional

1

2

1

1

1

Optional

Optional

1

Optional

Optional

1

Description

4.7µF, 10V Capacitor

Requirements/Comments

1µF, 16V Capacitor

100nF, 50V Capacitor

1200µF, 10V Electrolytic IRMS = 2A

1500µF, 6.3V

Electrolytic

8A Schottky Diode

ESR ≤ 44mΩ

2.5µH, 10A Inductor

1.3µH, 20A Inductor

N-Channel MOSFET

(TO-220 or TO-263)

DCR ~ 6mΩ

See Note 1.

DCR ~ 2mΩ

RDS(ON) = 20mΩ @ VGS = 4.5V

See Note 2.

SCR

33Ω

4.7Ω

10KΩ

6.24KΩ

10Ω

3.0mΩ

200Ω

5A Fast Fuse

Sets frequency.

Sets deadtime.

PCB Trace Resistor

DC/DC Controller

Notes:

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

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

2. For designs using the TO-220 MOSFETs, heatsinks with thermal resistance ΘSA < 20°C/W should be used. For designs using

the TO-263 MOSFETs, adequate copper area should be used. For details and a spreadsheet on MOSFET selections, refer

to Applications Bulletin AB-8.

REV. 1.3.2 8/27/01

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