LM2767

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SNVS069C – FEBRUARY 2000 – REVISED MAY 2013

LM2767 Switched Capacitor Voltage Converter

Check for Samples: LM2767

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FEATURES

DESCRIPTION

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Doubles Input Supply Voltage

The LM2767 CMOS charge-pump voltage converter

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SOT-23 5-Pin Package

operates as a voltage doubler for an input voltage in

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20

Ω Typical Output Impedance

the range of +1.8V to +5.5V. Two low cost capacitors

and a diode are used in this circuit to provide at least

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96% Typical Conversion Efficiency at 15mA

15 mA of output current.

APPLICATIONS

The LM2767 operates at 11 kHz switching frequency

to avoid audio voice-band interference. With an

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Cellular Phones

operating current of only 40 µA (operating efficiency

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Pagers

greater than 90% with most loads), the LM2767

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PDAs, Organizers

provides ideal performance for battery powered

systems. The device is manufactured in a SOT-23 5-

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Operational Amplifier Power Suppliers

pin package.

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Interface Power Suppliers

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Handheld Instruments

Basic Application Circuit

Figure 1. Voltage Doubler

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PRODUCTION DATA information is current as of publication date.

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Products conform to specifications per the terms of the Texas

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necessarily include testing of all parameters.