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SL34063AP1

DC-TO-DC CONVERTER CONTROL CIRCUITS

System Logic Semiconductor 

DC-TO-DC CONVERTER CONTROL CIRCUITS

SL34063A

The SL34063A is a monolithic control circuit containing the primary functions required for DC-to-DC converters. These

devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with

an active current limit circuit, driver and high current output switch. This series was specifically designed to be

incorporated in Step-Down and Step-Up and Voltage-Inverting applications with a minimum number of external

components.

FEATURES

FUNCTIONAL BLOCK DIAGRAM

• Operation from 3.0 V to 40 V Input

• Low Standby Current

• Current Limiting

• Output Switch Current to 1.5 A

• Output Voltage Adjustable

• Frequency Operation to 100 kHz

• Precision 2% Reference

MAXIMUM RATINGS

Rating

Power Supply Voltage

Comparator Input Voltage Range

Switch Collector Voltage

Switch Emitter Voltage (Vpin 1 = 40 V)

Switch Collector to Emitter Voltage

Driver Collector Voltage

Driver Collector Current (Note 1)

Switch Current

Power Dissipation and Thermal Characteristics

Ceramic Package, U Suffix TA = +25°C

Thermal Resistance

Plastic Package, P Suffix TA = +25°C

Thermal Resistance

SOIC Package, D Suffix TA = +25°C

Thermal Resistance

Operating Junction Temperature

Operating Ambient Temperature Range

Storage Temperature Range

System Logic

SLS

Semiconductor

Symbol

VCC

VIR

VC(switch)

VE(switch)

VCE(switch)

IC(driver)

IC(driver)

ISW

PD

RθJA

PD

RθJA

PD

RθJA

TJ

TA

Tstg

Value

Unit

40

Vdc

-0.3 to +40 Vdc

40

Vdc

40

Vdc

40

Vdc

40

Vdc

100

mA

1.5

A

1.25

W

100

°C/W

1.25

W

100

°C/W

625

mW °C/

160

W

+150

°C

0 to +70 °C

-65to+150 °C

1

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