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See Technical Specifications

LMC7660IMX/NOPB

1.5-V to 10-V switched capacitor voltage converter

Manufacturer:

TI/SN
Mfr.Part #:

LMC7660IMX/NOPB
Datasheet:

LMC7660IMX/NOPB Datasheet (PDF)
Vin (min) (V):

1.5
Vin (max) (V):

10
Vout (min) (V):

-1.5
Vout (max) (V):

-10
EDA/CAD Models:

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LMC7660IMX/NOPB General 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.

Key Features

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

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Specifications

Vin (min) (V)	1.5	Vin (max) (V)	10
Vout (min) (V)	-1.5	Vout (max) (V)	-10
Iout (max) (A)	0.05	Regulated outputs (#)	1
Switching frequency (min) (kHz)	10	Iq (typ) (mA)	0.12
Operating temperature range (°C)	-40 to 85	Rating	Catalog
Type	Charge pump