MC34063CD

Step Down / Step Up / Inverting DC-DC Converter MC34063C FEATURES z Operating from 3V to 40V z Low Standby Current z Current Limiting z Output Switch Current to 1.2A z Output Voltage Adjustable z Operation Frequency up to 180kHz (CT=100pF) z Precision 2% Reference z Available in SOP-8 and DIP-8 Packages z Moisture Sensitivity Level 3 for SMD Package SOP-8 PKG DIP-8 PKG APPLICATION z Battery Chargers z NICs / Switches / Hubs z ADSL Modems z Negative Voltage Power Supplies ORDERING INFORMATION Device MC34063CD MC34063CN Package SOP-8 DIP-8 DESCRIPTION The 34063C is a monolithic switching regulator control circuit containing the primary functions required for DC-DC converters. This device consists of internal temperature compensated reference, voltage comparator, controlled duty cycle oscillator with active current limit circuit, driver and high current output switch. The device is specifically designed to be used in Step-Down, Step-Up and Voltage-Inverting applications with a minimum number of external components. The MC34063C is the enhanced version of MC34063A/B with the ability to work in higher frequency. Absolute Maximum Ratings (Note 1) CHARACTERISTIC Power Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage (VSWC=40V) Switch Collector to Emitter Voltage Driver Collector Voltage Driver Collector Current (Note 2) Switch Current SYMBOL VCC VIR VSWC VSWE VCE Vdc Idc ISW MIN. -0.3 - MAX. 40 40 40 40 40 40 100 1.2 UNIT V V V...