SNOSBZ9C – APRIL 1997 – REVISED APRIL 2013
LMC7660 Switched Capacitor Voltage Converter
Check for Samples:
1
FEATURES
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Operation Over Full Temperature and Voltage
Range without an External Diode
Low Supply Current, 200
μA
Max
Pin-for-pin Replacement for the 7660
Wide Operating Range 1.5V to 10V
97% Voltage Conversion Efficiency
95% Power Conversion Efficiency
Easy to Use, Only 2 External Components
Extended Temperature Range
DESCRIPTION
The LMC7660 is a CMOS voltage converter capable
of converting a positive voltage in the range of +1.5V
to +10V to the corresponding negative voltage of
−1.5V
to
−10V.
The LMC7660 is a pin-for-pin
replacement for the industry-standard 7660. The
converter features: operation over full temperature
and voltage range without need for an external diode,
low quiescent current, and high power efficiency.
The LMC7660 uses its built-in oscillator to switch 4
power MOS switches and charge two inexpensive
electrolytic capacitors.
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Block Diagram
Pin Configuration
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2
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Copyright © 1997–2013, Texas Instruments Incorporated
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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