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SP6828DS/11

SP6828/6829 +3V Low Power Voltage Inverter

© Copyright 2000 Sipex Corporation

s 99.9% Voltage Conversion Efficiency

s +1.15V to +4.2V Input Voltage Range

s +1.15 V

s Inverts Input Supply Voltage

s 20

µA Quiescent Current for the SP6828

s 40

µA 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

+3V Low Power Voltage Inverters

SP6828/6829

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 20

µA 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.

C1-

C1+

GND

SP6828

SP6829

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