RC5054 データシートの表示（PDF） - Fairchild Semiconductor

部品番号

コンポーネント説明

メーカー

RC5054

Programmable Synchronous DC-DC Converter Controller for Low Voltage Microprocessors

Fairchild Semiconductor 

PRODUCT SPECIFICATION

RC5054A DC-DC Converter

Application Circuit

Figure 10 shows an application circuit of a DC-DC Converter

for an Intel Pentium Pro microprocessor.

RC5054A

VIN = +5V

L1 - 1µH

F1

C1

5x 1000µF

+12V

47Ω

2N6394

2x 1µF

0.1µF

2K

1 µF

SS 3

VSEN 1

VCC

18

OVP

19

MONITOR

AND

PROTECTION

1000pF

2 OCSET 1K

12 PGOOD

15 BOOT

RT

VID0

VID1

VID2

VID3

VID4

FB

20

OSC

4

5

6

7

D/A

8

10

RC5054A

-

+

+

-

14 UGATE 4.7

13 PHASE

Q1

L2

3µH

+VO

17 LGATE 4.7

Q2

D1

CO

16 PGND

9x 1000µF

9

11

2.2nF

COMP

GND

8.2nF

20K

0.1µF

1.33K

15

Component Selection Notes;

C0 - 9 Each 1000µF 6.3W VDC, Sanyo MV-GX or Equivalent

C1 - 5 Each 1000µF 25W VDC, Sanyo MV-GX or Equivalent

L2 - Core: Micrometals T50-52B; Each Winding: 10 Turns of 16AWG

L1 - Core: Micrometals T50-52; Winding: 5 Turns of 18AWG

D1 - 3A, 40V Schottky, Motorola MBR340 or Equivalent

Q1, Q2 - Fairchild FDB6030L

Figure 9. Pentium Pro DC-DC Converter

11

Share Link: