MAX757 - 3.3V/5V/可调输出、升压型DC-DC转换器

MAX757是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX757是3.3V/5V/可调输出、升压型DC-DC转换器，本站介绍了MAX757的封装应用图解、特点和优点、功能等，并给出了与MAX757相关的Maxim元器件型号供参考。

MAX757 - 3.3V/5V/可调输出、升压型DC-DC转换器 - DC-DC开关调节器 - 对于新设计推荐使用性能更好的器件：MAX1674/MAX1675/MAX1676 - 美信半导体

产品概述

The MAX756/MAX757 are CMOS step-up DC-DC switching regulators for small, low input voltage or battery-powered systems. The MAX756 accepts a positive input voltage down to 0.7V and converts it to a higher pin-selectable output voltage of 3.3V or 5V. The MAX757 is an adjustable version that accepts an input voltage down to 0.7V and generates a higher adjustable output voltage in the range from 2.7V to 5.5V. Typical full-load efficiencies for the MAX756/MAX757 are greater than 87%.

The MAX756/MAX757 provide three improvements over previous devices. Physical size is reduced-the high switching frequencies (up to 0.5MHz) made possible by MOSFET power transistors allow for tiny (< 5mm diameter) surface-mount magnetics. Efficiency is improved to 87% (10% better than with low-voltage regulators fabricated in bipolar technology). Supply current is reduced to 60µA by CMOS construction and a unique constant-off-time pulse-frequency modulation control scheme.

关键特性

以下关键特性由Maxim美信半导体提供：

Operates Down to 0.7V Input Supply Voltage

87% Efficiency at 200mA

60µA Quiescent Current

20µA Shutdown Mode with Active Reference and LBI Detector

500kHz Maximum Switching Frequency

±1.5% Reference Tolerance Over Temperature

Low-Battery Detector (LBI/LBO)

8-Pin DIP and SO Packages

热门应用

2节和3节电池供电设备

3.3V至5V升压转换

血糖表

医疗仪表

掌上电脑

个人数据通信/计算机

便携式数据收集设备

下面可能是您感兴趣的美信半导体公司DC-DC开关调节器元器件

Maxim(AD)|Maxim公司|Maxim美信半导体芯片授权国内Maxim代理商

Maxim公司产品现货专家，订购美信半导体公司产品不限最低起订量，Maxim（美信半导体）产品大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球Maxim代理商现货货源 - Maxim公司（已被AD亚德诺半导体收购）电子元件在线订购