Datenblatt-Suchmaschine für elektronische Bauteile |
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LM2660MX Datenblatt(PDF) 1 Page - Texas Instruments |
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LM2660MX Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 20 page LM2660 www.ti.com SNVS135D – SEPTEMBER 1999 – REVISED MAY 2013 LM2660 Switched Capacitor Voltage Converter Check for Samples: LM2660 1 FEATURES DESCRIPTION The LM2660 CMOS charge-pump voltage converter 2 • Inverts or Doubles Input Supply Voltage is a versatile unregulated switched capacitor inverter • Narrow SO-8 and Mini SO-8 Package or doubler. Operating from a wide 1.5V to 5.5V • 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 Efficiency at 100 mA without the cost, size and EMI related to inductor- • Selectable Oscillator Frequency: 10 kHz/80 based converters. With an operating current of only kHz 120 µA and operating efficiency greater than 90% at • Optional External Oscillator Input most loads, the LM2660 provides ideal performance for battery-powered systems. LM2660 devices can be operated directly in parallel to lower output APPLICATIONS impedance, thus providing more current at a given • Laptop Computers voltage. • Cellular Phones The FC (frequency control) pin selects between a • Medical Instruments nominal 10 kHz or 80 kHz oscillator frequency. The • Operational Amplifier Power Supplies oscillator frequency can be lowered by adding an external capacitor to the OSC pin. Also, the OSC pin • Interface Power Supplies may be used to drive the LM2660 with an external • Handheld Instruments clock up to 150 kHz. Through these methods, output ripple frequency and harmonics may be controlled. Additionally, the LM2660 may be configured to divide a positive input voltage precisely in half. In this mode, input voltages as high as 11V may be used. Basic Application Circuits Voltage Inverter Positive Voltage Doubler Splitting VIN in Half 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 1999–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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