SC1151

© 1998 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA

PROGRAMMABLE DC/DC CONTROLLER

FOR ADVANCED MICROPROCESSORS

March 11, 1998

5

-0.020

-0.010

0.000

0.010

0.020

0.030

0.040

0.050

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

Output Current (Amps)

SC1151 Regulation in Application circuit 16935F

Application circuit 16935F Ripple, 3.1V, 10A out

70.0%

75.0%

80.0%

85.0%

90.0%

95.0%

100.0%

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

3.50V Set

3.00V Set

2.40V Set

2.00V Set

Output Current (Amps)

SC1151 Efficiency in Application circuit 16935F

Application circuit 16935F Transient Response, 3.1V, 0.3A to 10A

Vo at Io=300mA steady state

Vo at Io=10A steady state

Steady state voltage

levels are superimposed

for reference.

CHARACTERISTIC CURVES