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SC1102

Synchronous Voltage Mode Controller for Distributed Power Supply Applications

Semtech Corporation 

SC1102/SC1102A

POWER MANAGEMENT

Absolute Maximum Ratings

Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified

in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may affect device

reliability.

Parameter

Symbol

Maximum

Units

VCC, BSTL to GND

PGND to GND

PHASE to GND (1)

BSTH to PHASE

Thermal Resistance Junction to Case

Thermal Resistance Junction to Ambient

Operating Temperature Range

Maximum Junction Temperature

Storage Temperature Range

Lead Temperature (Soldering) 10 Sec.

Note: (1) -1.5V to 20V for 25ns repetitive every cycle.

VIN

θJC

θJA

TA

TJ

TSTG

TLEAD

-1.0 to 14

± 0.5

-0.5 to 18

14

45

115

0 to 70

125

-65 to +150

300

V

V

V

V

°C/W

°C/W

°C

°C

°C

°C

Electrical Characteristics

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

Parameter

Conditions

Min

Typ

Max

Units

Power Supply

Supply Voltage

Supply Current

Line Regulation

Error Amplifier

VCC

EN = VCC

VO = 2.5V

4.2

12.6

V

6

10

mA

0.5

%

Gain (AOL)

Input Bias

Oscillator

35

dB

5

8

µA

Oscillator Frequency

Oscillator Max Duty Cycle

MOSFET Drivers

SC1102

SC1102A

170

200

230

kHz

425

500

575

90

95

%

DH Source/Sink

BSTH - DH = 4.5V,

1

A

DH- PHASE = 2V

DL Source/Sink

BSTL - DL = 4.5V.

1

A

DL - PGND. = 2V

 2006 Semtech Corp.

2

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