LM2660

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100mA 開關電容器電壓轉換器

產品詳情

Rating Catalog Iout (max) (A) 0.1 Vin (max) (V) 5.5 Vin (min) (V) 1.5 Vout (max) (V) 11 Vout (min) (V) -5.5 Features Enable, Unregulated Switching frequency (min) (kHz) 20 Switching frequency (max) (kHz) 40 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 1000 Type Charge pump
Rating Catalog Iout (max) (A) 0.1 Vin (max) (V) 5.5 Vin (min) (V) 1.5 Vout (max) (V) 11 Vout (min) (V) -5.5 Features Enable, Unregulated Switching frequency (min) (kHz) 20 Switching frequency (max) (kHz) 40 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 1000 Type Charge pump
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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類型 標題 下載最新的英語版本 日期
* 數據表 LM2660 Switched Capacitor Voltage Converter 數據表 (Rev. E) PDF | HTML 2014年 12月 8日
應用手冊 Using the LM2660 and LP2986 to Generate a Regulated Negative Output Voltage 2007年 3月 21日

設計和開發

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封裝 引腳 CAD 符號、封裝和 3D 模型
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
WAFERSALE (YS) —

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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