LM2665

www.ti.com

SNVS009F – NOVEMBER 1999 – REVISED MAY 2013

LM2665 Switched Capacitor Voltage Converter

Check for Samples: LM2665

1

FEATURES

DESCRIPTION

The LM2665 CMOS charge-pump voltage converter

2

•

Doubles or Splits Input Supply Voltage

operates as a voltage doubler for an input voltage in

•

6-Pin SOT-23 Package

the range of +2.5V to +5.5V. Two low cost capacitors

•

12

Ω Typical Output Impedance

and a diode (needed during start-up) are used in this

circuit to provide up to 40 mA of output current. The

•

90% Typical Conversion Efficiency at 40 mA

LM2665 can also work as a voltage divider to split a

•

1µA Typical Shutdown Current

voltage in the range of +1.8V to +11V in half.

The LM2665 operates at 160 kHz oscillator frequency

APPLICATIONS

to reduce output resistance and voltage ripple. With

•

Cellular Phones

an operating current of only 650 µA (operating

•

Pagers

efficiency greater than 90% with most loads) and 1µA

typical shutdown current, the LM2665 provides ideal

•

PDAs

performance

for

battery

powered

systems.

The

•

Operational Amplifier Power Suppliers

device is in a SOT-23 package.

•

Interface Power Suppliers

•

Handheld Instruments

Basic Application Circuits

Voltage Doubler

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.