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SC111

SINK AND SOURCE DC/DC CONTROLLER FOR TERMINATION POWER SUPPLY APPLICATIONS

Semtech Corporation 

SINK AND SOURCE DC/DC CONTROLLER FOR SC1110

TERMINATION POWER SUPPLY APPLICATIONS

PRELIMINARY - October 9, 2000

ELECTRICAL CHARACTERISTICS

Unless specified: VCC = 4.75V to 12.6V; GND = PGND = 0V; FB = VO; VBSTL = 12V; VBSTH-PHASE = 12V; TJ = 25oC

PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

MOSFET DRIVERS

Peak DH Sink/Source Current BSTH - DH = 4.5V, DH - PHASE = 3.0V 0.5

A

DH - PHASE = 1.5V

0.1

Peak DL Sink/Source Current

BSTL - DL = 4.5V, DL - GND = 3.0V

0.5

A

DL - GND = 1.5V

0.1

PROTECTION

Over Current Set Isource

SOFT START

Charge Current

Discharge Current

POWER GOOD

Upper Threshold

Lower Threshold

PWRGD Voltage Low

REFERENCE

REFOUT Source Current

Input Bias

VOCSET = 4.5V

VSS = 1.5V

VSS = 1.5V

IPWRGD = 2mA

180

200

220

µA

10

µA

2

µA

112

%

88

%

0.5

V

3

mA

5

8

µA

NOTE:

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

BLOCK DIAGRAM

© 2000 SEMTECH CORP.

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652 MITCHELL ROAD NEWBURY PARK CA 91320

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