SC1150

© 1998 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA

PROGRAMMABLE DC/DC

CONTROLLER

March 11, 1998

2

NOTES:

(1) Low output currents, below the continuous conduction threshold will cause an increase in output voltage

beyond the load regulation limit. For Application circuit 16935E see the regulation curve on sheet 5.

(2) All VID codes not specifically listed here are invalid and cause shutdown exactly as if the shutdown pin had

been asserted. xxxx refers to any valid VID code.

ELECTRICAL CHARACTERISTICS

Unless specified: V

PARAMETER

CONDITIONS

VID

3210

MIN

TYP

MAX UNITS

Output Voltage

(2)

I

1111 1.980 2.000 2.020

V

1110 2.079 2.100 2.121

1101 2.178 2.200 2.222

1100 2.277 2.300 2.323

1011 2.376 2.400 2.424

1010 2.475 2.500 2.525

1001 2.574 2.600 2.626

1000 2.673 2.700 2.727

0111 2.772 2.800 2.828

0110 2.871 2.900 2.929

0101 2.970 3.000 3.030

0100 3.069 3.100 3.131

0011 3.168 3.200 3.232

0010 3.267 3.300 3.333

0001 3.366 3.400 3.434

0000 3.465 3.500 3.535

Load Regulation

I

(1)

xxxx

1

%

Line Regulation

xxxx

0.5

%

UV Lockout

xxxx

4.2

V

Current Limit Voltage

xxxx

60

70

80

mV

Oscillator Frequency

xxxx

180

200

220

kHz

Oscillator Max Duty

Cycle

xxxx

90

95

%

DH Sink/Source Current

BST - DH = 4.5V, DH - PGND = 2V

xxxx

1

A

Output Voltage Tempco

xxxx

65

ppm/