MAX1796 - 低电源电流、升压型DC-DC转换器，可真正关断

MAX1796是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1796是低电源电流、升压型DC-DC转换器，可真正关断，本站介绍了MAX1796的封装应用图解、特点和优点、功能等，并给出了与MAX1796相关的Maxim元器件型号供参考。

MAX1796 - 低电源电流、升压型DC-DC转换器，可真正关断 - DC-DC开关调节器 - 低电源电流、升压型DC-DC转换器，具有True Shutdown - 美信半导体

产品概述

The MAX1795/MAX1796/MAX1797 are high efficiency step-up DC-DC converters intended for small portable hand-held devices. These devices feature Maxim's True-Shutdown™ circuitry, which fully disconnects the output from the input in shutdown, improves efficiency, and eliminates costly external components. All three devices also feature Maxim's proprietary LX-damping circuitry for reduced EMI in noise-sensitive applications. For additional in-system flexibility, a battery monitoring comparator (LBI/LBO) remains active even when the DC-DC converter is in shutdown.

The input voltage range is +0.7V to VOUT, where VOUT can be set from +2V to +5.5V. Startup is guaranteed from +0.85V. The MAX1795/MAX1796/MAX1797 have a preset, pin-selectable 5V or 3.3V output. The output can also be adjusted to other voltages, using two external resistors. The three devices differ only in their current limits, allowing optimization of external components for different loads: the MAX1795, MAX1796, and MAX1797 have current limits of 0.25A, 0.5A, and 1A, respectively. All devices are packaged in a compact 8-pin µMAX® package that is only 1.09mm tall and half the size of an 8-pin SO.

关键特性

以下关键特性由Maxim美信半导体提供：

>95% Efficiency

True-Shutdown Circuitry

Output Disconnects from Input in Shutdown

No External Schottky Diode Needed

25µA Quiescent Supply Current

Low-Noise Antiringing Feature

LBI/LBO Comparator Enabled in Shutdown

2µA Shutdown Current

8-Pin µMAX Package

热门应用

PDA与掌上电脑

便携式数字音频播放器

便携式终端

无线手机

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