LM2681

Switched Capacitor Voltage Converter

National Semiconductor

LM2681 Features

* n n n n Doubles or Splits Input Supply Voltage SOT23-6 Package 15Ω Typical Output Impedance 90% Typical Conversion Efficiency at 20 mA Applications n n n n n n Cellular Phones Pagers PDAs Operational Amplifier Power Suppliers Interface Power Suppliers Handheld Instruments Basic Application Circuit

LM2681 General Description

The LM2681 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) is used in this circuit to provide up to 20 mA of output current. The LM2681 can also work as a voltage divide.

LM2681 Datasheet (201.84 KB)

LM2681 Datasheet Preview — Preview of LM2681 PDF

Datasheet Details

Part number:

LM2681

Manufacturer:

National Semiconductor

File Size:

201.84 KB

Description:

Switched capacitor voltage converter.

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LM2681 Switched Capacitor Voltage Converter National Semiconductor

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LM2681 Features

LM2681 General Description

Datasheet Details

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