MAX1734 - 低电压、降压型DC-DC转换器，SOT23封装

MAX1734是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1734是低电压、降压型DC-DC转换器，SOT23封装，本站介绍了MAX1734的封装应用图解、特点和优点、功能等，并给出了与MAX1734相关的Maxim元器件型号供参考。

MAX1734 - 低电压、降压型DC-DC转换器，SOT23封装 - DC-DC开关调节器 - 高效DC-DC方案，用于低压逻辑电路供电 - 美信半导体

产品概述

The MAX1733/MAX1734 step-down DC-DC converters deliver over 250mA to outputs as low as 1.25V. These converters use a unique proprietary current-limited control scheme that achieves over 90% efficiency. These devices maintain extremely low quiescent supply current (40µA), and their high 1.2MHz (max) operating frequency permits small, low-cost external components. This combination of features makes the MAX1733/ MAX1734 excellent high-efficiency alternatives to linear regulators in space-constrained applications.

Internal synchronous rectification greatly improves efficiency and eliminates the external Schottky diode required in conventional step-down converters. Both devices also include internal digital soft-start to limit input current upon startup and reduce input capacitor requirements.

The MAX1733 provides an adjustable output voltage (1.25V to 2.0V). The MAX1734 provides factory-preset output voltages (see Selector Guide). Both are available in space-saving 5-pin SOT23 packages.

关键特性

以下关键特性由Maxim美信半导体提供：

250mA Guaranteed Output Current

Synchronous Rectifier for Over 90% Efficiency

Tiny 5-Pin SOT23 Package

40µA Quiescent Supply Current

0.01µA Logic-Controlled Shutdown

Up to 1.2MHz Switching Frequency

Fixed 1.8V or 1.5V Outputs (MAX1734)

Adjustable Output Voltage (MAX1733)

±1.5% Initial Accuracy

2.7V to 5.5V Input Range

Soft-Start Limits Startup Current

热门应用

蜂窝电话

计算机：台式机、工作站和服务器

消费类音频

数码相机

全球定位系统(GPS)

掌上电脑

POS终端

无线数据

无线局域网(WLAN)

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