SP6830 Datasheet, PDF (1/16 Pages) Sipex Corporation – Low Power Voltage Inverters With Shutdown

®
SP6830/6831
Low Power Voltage Inverters With Shutdown
FEATURES
s 99.9% Voltage Conversion Efficiency
s +1.15V to +5.3V Input Voltage Range
s Inverts Input Supply Voltage
s 70µA Supply Current for the SP6830
s 200µA Supply Current for the SP6831
s 35kHz Operating Frequency for the
SP6830
s 120kHz Operating Frequency for the
SP6831
s <1µA Shutdown Current
s 6-pin SOT23-6 Package
s Ideal for +3.6V Lithium Ion Battery
Applications
s Reverse +3.6V Lithium Ion Battery
Protection
s 25mA Output Current
s 19Ω Output Resistance
APPLICATIONS
s Small LCD Negative Bias Voltage
s Power Amplifier Negative Bias Voltage
s +5V to -5V Voltage Conversion
DESCRIPTION
The SP6830/6831 devices are CMOS Charge Pump Voltage Inverters that can be imple-
mented into designs which require a negative voltage from a battery voltage source as low as
+1.15V or a power supply rail voltage as high as +5.3V. The SP6830/6831 devices are ideal
for both battery-powered and board level voltage conversion applications with a typical
operating current of 70µA for the SP6830 and 200µA for the SP6831. These devices combine
an ultra-low shutdown current of <1µA with high efficiency (>95% over most of its load-current
range) which are ideal for designs using batteries such as cell phones, PDAs, medical
instruments, and other portable equipment. The SP6830/6831 devices are available in a
space-saving 6-pin SOT23-6 Package.
VOUT 1
VIN 2
C1- 3
SP6830
SP6831
6 _C1+
5 SHDN
4 GND
Rev. 9-22-00
SP6830/6831 Low Power Voltage Inverters With Shutdown
1
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