SP6830 查看數據表（PDF） - Signal Processing Technologies

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SP6830

Low power voltage inverters with shutdown

Signal Processing Technologies 

®

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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