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SP6828-5EK/TR Datasheet

  • SP6828-5EK/TR

  • +3V Low Power Voltage Inverters

  • 17頁

  • SIPEX

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廬
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 V
IN
Guaranteed Start-up
s
Inverts Input Supply Voltage
s
20碌A Quiescent Current for the
SP6828
s
40碌A 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 20碌A for the
SP6828
and 40碌A 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.
V
OUT
1
V
IN
2
C1- 3
SP6828
SP6829
5 C1+
4 GND
SP6828DS/11
SP6828/6829 +3V Low Power Voltage Inverter
漏 Copyright 2000 Sipex Corporation
1

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