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Documents LM2665
SNVS009H – NOVEMBER 1999 – REVISED MARCH 2016 LM2665 Switched Capacitor Voltage Converter
1 Features 3 Description The LM2665 CMOS charge-pump voltage converter
operates as a voltage doubler for an input voltage in
the range of 2.5 V to 5.5 V. Two low-cost capacitors
and a diode (needed during start-up) are used in this
circuit to provide up to 40 mA of output current. The
LM2665 can also work as a voltage divider to split a
voltage in the range of 1.8 V to 11 V in half. 1 Input Voltage for Voltage Doubler: 2.5 V to 5.5 V
Voltage Divider Splits Voltage: 1.8 V to 11 V
Doubles or Splits Input Supply Voltage
12-О© Typical Output Impedance
90% Typical Conversion Efficiency at 40 mA
1-ВµA Typical Shutdown Current 2 Applications Cellular Phones
Pagers
PDAs
Operational Amplifier Power Suppliers
Interface Power Suppliers …
