SNVS005E November   1999  – December 2014 LM2664

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Test Circuit
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application - Voltage Inverter
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Requirements
        1. 9.2.2.1 Paralleling Devices
        2. 9.2.2.2 Cascading Devices
        3. 9.2.2.3 Combined Doubler and Inverter
        4. 9.2.2.4 Regulating VOUT
        5. 9.2.2.5 Output Capacitor Selection
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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订购信息

1 Features

  • 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.

Voltage Inverter

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5 V to −10 V Converter

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