SC1152

PROGRAMMABLE SYNCHRONOUS DC/DC

CONTROLLER FOR ADVANCED PROCESSORS

© 1998 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

April 28, 1998

2

NOTE:

(1) Specification refers to application circuit (Figure 1.).

ELECTRICAL CHARACTERISTICS

Unless specified: V

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Output Voltage

I

(1)

See Table 1.

Supply Voltage

V

CC

4.2

7

V

Supply Current

V

5

mA

Load Regulation

I

(1)

1%

Line Regulation

All VID codes

(1)

0.5

%

Gain (A

35

dB

Current Limit Voltage

60

70

80

mV

Oscillator Frequency

180

200

220

kHz

Oscillator Max Duty Cycle

90

95

%

DH Sink/Source Current

BST

1

A

DL Sink/Source Current

BST

1

A

OVP Threshold Voltage

120

%

OVP Source Current

V

10

mA

Power Good Threshold

Voltage

90

110

%

Dead Time

50

100

ns

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Maximum

Units

V

V

IN

-0.3 to 7

V

PGND to GND

± 1

V

BST to GND

-0.3 to 15

V

Thermal Resistance

Junction to Case

θ

JC

30

°C/W

Thermal Resistance

Junction to Ambient

θ

JA

90

°C/W

Operating

Temperature Range

T

A

0 to 70

°C

Storage

Temperature Range

T

STG

-65 to +150

°C

Lead Temperature

(Soldering) 10 sec

T

LEAD

300

°C