FAN5091 View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

FAN5091

Two Slice Interleaved Synchronous Buck Converter

Fairchild Semiconductor 

FAN5091

Typical Operating Characteristics (Continued)

Droop vs. RDroop (RT = 25KΩ)

180

160

140

120

100

80

60

40

20

0

0 2 4 6 8 10 12 14 16 18 20

RDroop (KΩ)

1.501

1.500

1.499

1.498

1.497

1.496

1.495

1.494

0

PRODUCT SPECIFICATION

VOUT TEMPERATURE VARIATION

25

70

100

TEMPERATURE (°C)

Application Circuit

L1 (Optional)

+5V

+5V

CIN

+5V

R6

Q1

L2

VID4

VID3

VID2

VID1

VID0

ENABLE/SS

C1

PWRGD

R1

+5V

C2

R7

Q2 D1

1 2 3 4 5 6 7 8 9 10 11 12

+12V

U1

FAN5091

+12V

+5V

24 23 22 21 20 19 18 17 16 15 14 13

R4 R3 R2

R9

Q3

L3

R10

Q4 D2

R5

+12V

C3

VO

COUT

Figure 1. Application Circuit for 1.6V, 35A Athlon Medium-Frequency Application (500 KHz each slice)

8

REV. 1.0.0 5/10/01

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