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LM2665 Datasheet

Part Number LM2665
Manufacturers National Semiconductor
Logo National Semiconductor
Description Switched Capacitor Voltage Converter
Datasheet LM2665 DatasheetLM2665 Datasheet (PDF)

LM2665 Switched Capacitor Voltage Converter November 1999 LM2665 Switched Capacitor Voltage Converter General Description The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.5V to +5.5V. 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 +1.8V to +11V in half. The LM2665 oper.

  LM2665   LM2665






Part Number LM2665
Manufacturers Texas Instruments
Logo Texas Instruments
Description Switched Capacitor Voltage Converter
Datasheet LM2665 DatasheetLM2665 Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM2665 SNVS009H – NOVEMBER 1999 – REVISED MARCH 2016 LM2665 Switched Capacitor Voltage Converter 1 Features •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-Ω Typical Output Impedance • 90% Typical Conversion Efficiency at 40 mA • 1-µA Typical Shutdown Current 2 Applications • Cellular Phones • Pagers • PDAs •.

  LM2665   LM2665







Switched Capacitor Voltage Converter

LM2665 Switched Capacitor Voltage Converter November 1999 LM2665 Switched Capacitor Voltage Converter General Description The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.5V to +5.5V. 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 +1.8V to +11V in half. The LM2665 operates at 160 kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 µA (operating efficiency greater than 90% with most loads) and 1µA typical shutdown current, the LM2665 provides ideal performance for battery powered systems. The device is in SOT-23-6 package. Features n n n n n Doubles or Splits Input Supply Voltage SOT23-6 Package 12Ω Typical Output Impedance 90% Typical Conversion Efficiency at 40 mA 1µA Typical Shutdown Current Applications n n n n n n Cellular Phones Pagers PDAs Operational Amplifier Power Suppliers Interface Power Suppliers Handheld Instruments Basic Application Circuits Voltage Doubler DS100049-1 Splitting Vin in Half DS100049-2 © 1999 National Semiconductor Corporation DS100049 www.national.com LM2665 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Su.


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