RC5051M View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

MFG CO.

RC5051M

Programmable Synchronous DC-DC Controller for Low Voltage Microprocessors

Fairchild Semiconductor 

PRODUCT SPECIFICATION

Typical Operating Characteristics (continued)

Output Startup from Enable

Time (2ms/division)

3.18

3.17

3.16

3.15

3.14

3.13

3.12

3.11

0

VREF Tempco

RC5051

25

70

100

Temperature (°C)

Application Circuit

+12V

+5V

C1 0.1µF

L1

2.5 µH

CIN*

C2 0.1µF

R1

47Ω

D1

1N4735A

VREF

C3 0.1µF

11

10

12

9

13

8

14

7

15

6

16 RC5051 5

17

4

18

3

19

2

20

1

CEXT

100pF

C5

1µF

C4

1µF

C6

0.1µF

R2

Q1

4.7Ω

R3

Q2

4.7Ω

L2

2.3µH

D2

1N5820

R SENSE*

VO

COUT*

VID4

VID3

VID2

VID1

VID0

ENABLE

C7

0.1µF

R4 10KΩ

C8 0.1µF

VCC

PWRGD

*Refer to Table 3 for values of

RSENSE, COUT, and CIN.

65-5051-03

Figure 1. 15A Application Circuit for Pentium II Processors

REV. 1.0.4 4/2/01

7

Share Link: