LM2767M5X Datasheet, PDF (1/16 Pages) Texas Instruments – LM2767 Switched Capacitor Voltage Converter

LM2767
www.ti.com
SNVS069C – FEBRUARY 2000 – REVISED MAY 2013
LM2767 Switched Capacitor Voltage Converter
Check for Samples: LM2767
FEATURES
1
•2 Doubles Input Supply Voltage
• SOT-23 5-Pin Package
• 20Ω Typical Output Impedance
• 96% Typical Conversion Efficiency at 15mA
APPLICATIONS
• Cellular Phones
• Pagers
• PDAs, Organizers
• Operational Amplifier Power Suppliers
• Interface Power Suppliers
• Handheld Instruments
DESCRIPTION
The LM2767 CMOS charge-pump voltage converter
operates as a voltage doubler for an input voltage in
the range of +1.8V to +5.5V. Two low cost capacitors
and a diode are used in this circuit to provide at least
15 mA of output current.
The LM2767 operates at 11 kHz switching frequency
to avoid audio voice-band interference. With an
operating current of only 40 µA (operating efficiency
greater than 90% with most loads), the LM2767
provides ideal performance for battery powered
systems. The device is manufactured in a SOT-23 5-
pin package.
Basic Application Circuit
Figure 1. 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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2013, Texas Instruments Incorporated