SL34063A DC-TO-DC CONVERTER CONTROL CIRCUITS
The SL34063A is a monolithic control circuit containing the primary functio...
SL34063A DC-TO-DC CONVERTER CONTROL CIRCUITS
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 Symbol VCC VIR VC(switch) VE(switch) VCE(switch) IC(driver) IC(driver) ISW PD RθJA PD RθJA PD RθJA
TJ
Value Unit 40 Vdc -0.3 to +40 Vdc 40 Vdc 40 Vdc 40 Vdc 40 Vdc 100 mA 1.5 A 1.25 100 1.25 100 625 ...