MAX1759

Buck/boost稳压电荷泵,µMAX封装

业内尺寸最小的100mA buck/boost方案


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说明

The MAX1759 is a buck/boost regulating charge pump that generates a regulated output voltage from a single lithium-ion (Li+) cell, or two or three NiMH or alkaline cells for small hand-held portable equipment. The MAX1759 operates over a wide +1.6V to +5.5V input voltage range and generates a fixed 3.3V or adjustable (2.5V to 5.5V) output (Dual Mode™). Maxim's unique charge-pump architecture allows the input voltage to be higher or lower than the regulated output voltage. Despite its high 1.5MHz operating frequency, the MAX1759 maintains low 50µA quiescent supply current.

Designed to be an extremely compact buck/boost converter, this device requires only three small ceramic capacitors to build a complete DC-DC converter capable of generating a guaranteed 100mA (min) output current from a +2.5V input. For added flexibility, the MAX1759 also includes an open-drain power-OK (POK) output that signals when the output voltage is in regulation.

The MAX1759 is available in a space-saving 10-pin µMAX package that is 1.09mm high and half the size of an 8-pin SO.
MAX1759:典型工作电路 MAX1759:典型工作电路 放大+

关键特性

  • Regulated Output Voltage (Fixed 3.3V or Adjustable 2.5V to 5.5V)
  • 100mA Guaranteed Output Current
  • +1.6V to +5.5V Input Voltage Range
  • Low 50µA Quiescent Supply Current
  • 1µA Shutdown Mode
  • Load Disconnected from Input in Shutdown
  • High 1.5MHz Operating Frequency
  • Uses Small Ceramic Capacitors
  • Short-Circuit Protection and Thermal Shutdown
  • Small 10-Pin µMAX Package

应用

  • 备用电池升压转换器
  • Li+电池供电应用
  • 微型设备
  • 转换器

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
产品可靠性报告: MAX1759.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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