SP6829

® SP6828/6829 +3V Low Power Voltage Inverters s 99.9% Voltage Conversion Efficiency s +1.15V to +4.2V Input Voltage Range s +1.15 VIN Guaranteed Start-up s Inverts Input Supply Voltage s 20µA Quiescent Current for the SP6828 s 40µA Quiescent Current for the SP6829 s 25mA Output Current s 12kHz Operating Frequency for the SP6828 s 35kHz Operating Frequency for the SP6829 s Ideal for +3.6V Lithium Ion Battery Applications s Reverse +3.6V Lithium Ion Battery Protection s 5-pin SOT23 Package DESCRIPTION The SP6828/6829 devices are CMOS Charge Pump Voltage Inverters that can be implemented in designs requiring a negative voltage from a +3V battery source. The SP6828/ 6829 devices are ideal for both battery-powered and board level voltage conversion applications with a typical operating current of 20µA for the SP6828 and 40µA for the SP6829. Both devices can output 25mA with a voltage drop of 500mV. These devices combine a low quiescent current with high efficiency (>95% over most of its load-current range), which is ideal for designs using +3.3V or +3.6V lithium ion batteries. Applications include cell phones, PDAs, medical instruments and other portable equipment. The SP6828/6829 devices are available in a space-saving 5-pin SOT23 Package. VOUT 1 VIN 2 C1- 3 SP6828 SP6829 5 C1+ 4 GND SP6828DS/11 SP6828/6829 +3V Low Power Voltage Inverter © Copyright 2000 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at ...