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APW7137,1MHz高效升压DC/DC

APW7137】1MHz高效升压DC/DC

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APW7137 详细介绍

APW7137是一个采用固定1MHz切换频率,电流控制模式 DC/DC 升压元件,而2.5V至6V输入电压范围,APW7137适合使用于单一锂电池供电的应用上。1MHz 切换频率可以有效减少APW7137外部电感及电容的体积。APW7137内建N 通道开关的低阻抗值,可提供最高达90%效率。APW7137最高输出电压可达30V。APW7137使用SOT-23-6包装对于节省电路板空间有很大的帮助。

APW7137 概述
The APW7137 is a fixed switching frequency (1MHz typical), current-mode, step-up regulator with an integrated N-channel MOSFET. The device allows the usage of small inductors and output capacitors for portable devices. The current-mode control scheme provides fast transient response and good output voltage accuracy.
The APW7137 includes under-voltage lockout, current limit, and over-temperature shutdown preventing damage in the event of an output overload.

APW7137 技术特性
· Wide 2.5V to 6V Input Voltage Range
· Built-in 0.6W N-Channel MOSFET
· Built-in Soft-Start
· High Efficiency up to 90%
· <1mA Quiescent Current During Shutdown
· Current-Mode Operation
     - Stable with Ceramic Output Capacitors
     - Fast Transient Response
· Current-Limit Protection
· Over-Temperature Protection with Hysteresis
· Available in a Tiny 5-Pin SOT-23 Package
· Lead Free and Green Devices Available
     (RoHS Compliant)

APW7137 应用领域
· Cell Phone and Smart Phone
· PDA, PMP, MP3
· Digital Camera
· Boost Regulators


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