NCP456中文资料Load Switch, 2 A Single, For Low Voltage Rail数据手册ONSEMI规格书

描述 Description

The NCP456R and NCP457 are power load switch with very low
Ron NMOSFET controlled by external logic pin, allowing
optimization of battery life, and portable device autonomy.
Indeed, thanks to a best in class current consumption optimization
with NMOS structure, leakage currents are drastically decreased.
Offering optimized leakages isolation on the ICs connected on the
battery.
Output discharge path is proposed, in the NCP457 version , to
eliminate residual voltages on the external components connected on
output pin.
Reverse voltage protection, from OUT to IN is offered in the
NCP456R version.
Proposed in wide input voltage range from 0.75 V to 5.5 V, and a
very small CSP6 0.85 x 1.25 mm2.

特性 Features

• 0.75 V - 5.5 V operating range
• Compatible with the latest generation of SoCs and CPUs
• DC Current up to 2 A
• Support for portable processors
• Output Auto-discharge
• Elimiantes residual voltage on the output rail

应用 Application

• Controlled load switch for Smartphones
• Controlled load switch for tablets
• Controlled load switch for computing

简介

NCP456属于集成电路（IC）的线性+开关稳压器。由制造生产的NCP456稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。