JC34063E - ETC

JC34063E 1.5A DC TO DC CONVERTER CONTROL

JC34063 series have all the functions required for DC-to-DC converters: an internal Temperaturecompensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver, and high current output switch. JC34063 series are designed for step-down, step-up and voltage-inverting applications by using a minimum number of exte.

Features

‹ ‹ ‹ ‹ ‹ ‹ 3.0V to 40V Input Adjustable Output Voltage Output Switch Current to 1.5A Low Standby Current Operating Frequency to 100kHz Precision 1 % Reference available Application z CD-ROM z Motherboards z z Battery Chargers z DSL Modem SMPS Power Supply Schematic Diagram 8 Driver Collector S Q R 7 IPK Sense IPK Oscillator CT 6 VCC Comparator + 5 Comparator Inverting Inpu t 1.25V VREF 100 Q2 Q1 1 Switch Collector 2 Switch Em itter 3 Timing Cap acitor 4 GND JC34063V2.02 1 http://www.Datasheet4U.com JC34063 series Pin Configurations Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Swi.