SC1154

PROGRAMMABLE SYNCHRONOUS

DC/DC HYSTERETIC CONTROLLER

FOR ADVANCED PROCESSORS

© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

PRELIMINARY - March 1, 2000

10

NOTE:

(1) If the VID bits are set to 11111, then the high-side and the low-side driver outputs will be set low, and the con-

troller will be set to a low-Iq state.

OUTPUT VOLTAGE TABLE

0 = GND; 1 = Floating or +5V pull-up

VID4

VID3

VID2

VID1

VID0

VDC

(V)

0

1

1

1

1

1.30

0

1

1

1

0

1.35

0

1

1

0

1

1.40

0

1

1

0

0

1.45

0

1

0

1

1

1.50

0

1

0

1

0

1.55

0

1

0

0

1

1.60

0

1

0

0

0

1.65

0

0

1

1

1

1.70

0

0

1

1

0

1.75

0

0

1

0

1

1.80

0

0

1

0

0

1.85

0

0

0

1

1

1.90

0

0

0

1

0

1.95

0

0

0

0

1

2.00

0

0

0

0

0

2.05

1

1

1

1

1

NO CPU

1

1

1

1

0

2.10

1

1

1

0

1

2.20

1

1

1

0

0

2.30

1

1

0

1

1

2.40

1

1

0

1

0

2.50

1

1

0

0

1

2.60

1

1

0

0

0

2.70

1

0

1

1

1

2.80

1

0

1

1

0

2.90

1

0

1

0

1

3.00

1

0

1

0

0

3.10

1

0

0

1

1

3.20

1

0

0

1

0

3.30

1

0

0

0

1

3.40

1

0

0

0

0

3.50