LM2765_15 Datasheet, PDF (1/14 Pages) Texas Instruments – LM2765 Switched Capacitor Voltage Converter

LM2765
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SNVS070C – MARCH 2000 – REVISED MAY 2013
LM2765 Switched Capacitor Voltage Converter
Check for Samples: LM2765
FEATURES
1
•2 Doubles Input Supply Voltage
• SOT-23 6-Pin Package
• 20Ω Typical Output Impedance
• 90% Typical Conversion Efficiency at 20 mA
• 0.1µA Typical Shutdown Current
APPLICATIONS
• Cellular Phones
• Pagers
• PDAs
• Operational Amplifier Power Supplies
• Interface Power Supplies
• Handheld Instruments
DESCRIPTION
The LM2765 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 up to 20
mA of output current.
The LM2765 operates at 50 kHz switching frequency
to reduce output resistance and voltage ripple. With
an operating current of only 130 µA (operating
efficiency greater than 90% with most loads) and
0.1µA typical shutdown current, the LM2765 provides
ideal performance for battery powered systems. The
device is manufactured in a SOT-23 6-pin package.
Basic Application Circuits
Voltage Doubler
Connection Diagram
6-Pin Small Outline Package
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6
2
5
3
4
Figure 1. DBV Package Top View
Figure 2. Actual Size
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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.
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