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LM2660M/NOPB |LM2660MNOPBNSN/a284avaiSwitched Capacitor Voltage Converter 8-SOIC -40 to 85
LM2660MX/NOPB |LM2660MXNOPBNSN/a30404avaiSwitched Capacitor Voltage Converter 8-SOIC -40 to 85


LM2660MX/NOPB ,Switched Capacitor Voltage Converter 8-SOIC -40 to 85 SNVS135E–SEPTEMBER 1999–REVISED DECEMBER 20145 Pin Configuration and FunctionsSOIC (D) and VSSOP ( ..
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Switched Capacitor Voltage Converter
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LM2660

SNVS135E –SEPTEMBER 1999–REVISED DECEMBER 2014
LM2660 Switched Capacitor Voltage Converter Features 3 Description

The LM2660 CMOS charge-pump voltage converter Invertsor Doubles Input Supply Voltage isa versatile unregulated switched capacitor inverter• Narrow SOIC and VSSOP Packages or doubler. Operating froma wide 1.5-Vto 5.5-V• 6.5-Ω Typical Output Resistance supply voltage, the LM2660 uses two low-cost
capacitors to provide 100 mA of output current• 88% Typical Conversion Efficiencyat 100 mA without the cost, size and EMI relatedto inductor-• Selectable Oscillator Frequency:10 kHz/80 kHz based converters. With an operating currentof only• Optional External Oscillator Input 120 µA and operating efficiency greater than 90%at
most loads, the LM2660 provides ideal performance2 Applications for battery-powered systems. LM2660 devices canbe
operated directly in parallel to lower output• Laptop Computers impedance, thus providing more currentata given• Cellular Phones voltage. Medical Instruments The FC (frequency control) pin selects betweena• Operational Amplifier Power Supplies nominal 10-kHzor 80-kHz oscillator frequency. The Interface Power Supplies oscillator frequency can be lowered by adding an
external capacitorto the OSC pin. Also, the OSC pin• Handheld Instruments may be usedto drive the LM2660 with an externalspace clock upto 150 kHz. Through these methods, output
space ripple frequency and harmonics maybe controlled.
space Additionally, the LM2660 maybe configuredto divide
space a positive input voltage preciselyin half.In this mode,
input voltagesas highas 11V maybe used.
Device Information(1)

(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
Simplified Schematic
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