Datasheet > LM2664

LM2664

更新时间： 2024-11-27 02:58:51

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LM2664 Switched Capacitor Voltage Converter

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LM2664

SNVS005E –NOVEMBER 1999–REVISED DECEMBER 2014

LM2664 Switched Capacitor Voltage Converter

1 Features

3 Description

The LM2664 CMOS charge-pump voltage converter

inverts a positive voltage in the range of 1.8 V to 5.5

V to the corresponding negative voltage of −1.8 V to

−5.5 V. The device uses two low-cost capacitors to

provide up to 40 mA of output current.

•

Inverts Input Supply Voltage

6-Pin SOT-23 Package

12-Ω Typical Output Impedance

91% Typical Conversion Efficiency at 40 mA

1-µA Typical Shutdown Current

The LM2664 operates at 160-kHz oscillator frequency

to reduce output resistance and voltage ripple. With

an operating current of only 220 µA (operating

efficiency greater than 91% with most loads) and 1-

µA typical shutdown current, the LM2664 provides

ideal performance for battery-powered systems.

2 Applications

•

Cellular Phones

Pagers

PDAs

Device Information⁽¹⁾

Operational Amplifier Power Suppliers

Interface Power Suppliers

Handheld Instruments

PART NUMBER

LM2664

PACKAGE

BODY SIZE (NOM)

SOT-23 (6)

2.90 mm x 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

space

Voltage Inverter

5 V to −10 V Converter

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...20

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