GL34063

Gleam Power Management GL34063 1.5A DC-TO-DC CONVERTER CONTROL CIRCUIT Description GL34063 has all the functions required for DC-to-DC converters: an internal temperature- compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver, and highcurrent output switch. GL34063 is designed for step-down, step-up and voltage-inverting applications by using a minimum number of external components. Features 3.0V to 40V input Adjustable Output Voltage Current Limiting Output Switch Current to 1.5A Low Standby Current Operating Frequency to 100kHz Precision 2% Reference Application CD-ROM Motherboards SMPS Power Supply Battery Chargers DSL Modem SCHEMATIC DIAGRAM 8 Driver Collector 7 Ipk Sense 6 VCC 5 Comparator Inverting Input Ipk Oscillator CT SQ Q2 R 100 Comparator + - 1.25V Reference Regulator (Bottom View) 1 Switch Collector Q1 2 Switch Emitter 3 Timing Capacitor 4 GND GL34063 V1.3 1 Gleam Power Management GL34063 1.5A DC-...