MAX828 - 开关电容电压反相器

MAX828是Maxim美信半导体公司的一款电荷泵产品，MAX828是开关电容电压反相器，本站介绍了MAX828的封装应用图解、特点和优点、功能等，并给出了与MAX828相关的Maxim元器件型号供参考。

MAX828 - 开关电容电压反相器 - 电荷泵 - 无电感电源，用于寻呼LCD - 美信半导体

产品概述

The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz. Their high efficiency (greater than 90% over most of the load-current range) and low operating current (60µA for the MAX828) make these devices ideal for both battery-powered and board-level voltage-conversion applications.

The MAX828/MAX829 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. Both parts come in a 5-pin SOT23-5 package and can deliver 25mA with a voltage drop of 500mV.

For a similar device with logic-controlled shutdown, refer to the MAX1719/MAX1720/MAX1721. For applications requiring more power, the MAX860 delivers up to 50mA with a voltage drop of 600mV, in a space-saving µMAX® package.

关键特性

以下关键特性由Maxim美信半导体提供：

5-Pin SOT23-5 Package

95% Voltage Conversion Efficiency

Inverts Input Supply Voltage

60µA Quiescent Current (MAX828)

+1.5V to +5.5V Input Voltage Range

Requires Only Two Capacitors

25mA Output Current

热门应用

电池供电应用

蜂窝电话

手持终端、PDA

医疗仪器

小型LCD板

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