LM2664_15 Datasheet, PDF (1/20 Pages) Texas Instruments – LM2664 Switched Capacitor Voltage Converter

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LM2664
SNVS005E – NOVEMBER 1999 – REVISED DECEMBER 2014
LM2664 Switched Capacitor Voltage Converter
1 Features
•1 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
2 Applications
• Cellular Phones
• Pagers
• PDAs
• Operational Amplifier Power Suppliers
• Interface Power Suppliers
• Handheld Instruments
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.
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.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
LM2664
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.
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Voltage Inverter
5 V to −10 V Converter
1
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.