LM2660 - 开关电容器电压转换器

LM2660是TI德州仪器公司的一款电荷泵（无感应器）产品，LM2660是开关电容器电压转换器，本站介绍了LM2660的封装应用图解、特点和优点、功能等，并给出了与LM2660相关的TI元器件型号供参考。

LM2660 - 开关电容器电压转换器 - 电荷泵（无感应器） - DC/DC开关稳压器 - 德州仪器

产品特性

Inverts or Doubles Input Supply Voltage
Narrow SOIC and VSSOP Packages
6.5-Ω Typical Output Resistance
88% Typical Conversion Efficiency at 100 mA
Selectable Oscillator Frequency: 10 kHz/80 kHz
Optional External Oscillator Input

产品应用

Laptop Computers
Cellular Phones
Medical Instruments
Operational Amplifier Power Supplies
Interface Power Supplies
Handheld Instruments

产品说明

The LM2660 CMOS charge-pump voltage converter is a versatile unregulated switched capacitor inverter or doubler. Operating from a wide 1.5-V to 5.5-V supply voltage, the LM2660 uses two low-cost capacitors to provide 100 mA of output current without the cost, size and EMI related to inductor-based converters. With an operating current of only 120 µA and operating efficiency greater than 90% at most loads, the LM2660 provides ideal performance for battery-powered systems. LM2660 devices can be operated directly in parallel to lower output impedance, thus providing more current at a given voltage.

The FC (frequency control) pin selects between a nominal 10-kHz or 80-kHz oscillator frequency. The oscillator frequency can be lowered by adding an external capacitor to the OSC pin. Also, the OSC pin may be used to drive the LM2660 with an external 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 11 V may be used.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM2660	SOIC (8)	4.90 mm x 3.91 mm
LM2660	VSSOP (8)	3.00 mm x 3.00 mm

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