LM2660

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100mA 开关电容器电压转换器

产品详情

Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.1 Vin (min) (V) 1.5 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 20 Switching frequency (max) (kHz) 40 Features Enable Vout (min) (V) -5.5 Vout (max) (V) 11 Iq (typ) (µA) 1000
Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.1 Vin (min) (V) 1.5 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 20 Switching frequency (max) (kHz) 40 Features Enable Vout (min) (V) -5.5 Vout (max) (V) 11 Iq (typ) (µA) 1000
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WAFERSALE (YS) See data sheet
  • 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
  • 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

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.

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.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM2660 Switched Capacitor Voltage Converter 数据表 (Rev. E) PDF | HTML 2014年 12月 8日
应用手册 Using the LM2660 and LP2986 to Generate a Regulated Negative Output Voltage 2007年 3月 21日

设计和开发

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封装 引脚 下载
SOIC (D) 8 查看选项
VSSOP (DGK) 8 查看选项
WAFERSALE (YS)

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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