AHK660 CMOS Switched-Capacitor Voltage Converter Features The AHK660 is a monolithic, switched-capacitor voltage converter able to either double or invert an input voltage. Using two capacitors, it can deliver 100mA. It features low quiescent current and high efficiency over a large portion of its load range make this device ideal for portable applications. *= *= *= *= *= *= *= *= The AHK660 integrates an oscillator, divide by two and four Power MOSFETs. This in combination with two low cost capacitors make up a complete converter solution. The AHK660 is available in a surface mount 8-pin SOIC package. TM Only requires two small capacitors 100mA Output High efficiency Doubling or Inverting Modes 120A Quiescent Current Pin Compatible to '7660 SO-8 package Input Voltage Range *= 2.5-5.5V (Doubler) *= 1.5-5.5V (Inverter) Applications *= *= *= *= Notebook Computers Handheld Electronics Op-amp Power Supplies High current upgrade for '7660 Typical Operating Circuits AHK660 V IN 2.5V to 5.5V 1 2 3 4 FC CAP+ V+ OSC GND LV CAP OUT 8 Output (V IN Doubled) 7 6 5 Positive Voltage Doubler VIN 1.5V to 5.5V AHK660 1 2 FC CAP+ V+ OSC 3 GND LV 4 CAP OUT 8 7 6 5 Output (V IN Inverted) Voltage Inverter Advanced Analogic Technologies, Inc. 1250 Oakmead Pkwy, Suite 310, Sunnyvale, CA 94086 (408)524-9684 Fax (408)524-9689 5-1 660.1999.9.0.9 Advanced Information General Description ChargePump AHK660 CMOS Switched-Capacitor Voltage Converter This page intentionally left blank Advanced Analogic Technologies, Inc. 1250 Oakmead Pkwy, Suite 310, Sunnyvale, CA 94086 (408)524-9684 Fax (408)524-9689 5-2 660.1999.9.0.9