AP7331集成电路（IC）的线性+开关稳压器规格书PDF中文资料

AP7331属于集成电路（IC）的线性+开关稳压器。由美台半导体制造生产的AP7331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。

描述 Description

The AP7331 is a 300mA, adjustable and fixed output voltage, low dropout linear regulator. The device included pass element, error amplifier, band-gap, current limit and thermal shutdown circuitry. The device is turned on when EN pin is set to logic high level.

The characteristics of low dropout voltage and low quiescent current make it suitable for low power applications, for example, battery powered devices. The typical quiescent current is approximately 65μA.

特性 Features

• 300mA Low Dropout Regulator with EN

• Very low IQ over full load: 65µA

• Wide input voltage range: 2V to 6V

• Wide adjustable output: 0.8V to 5.0V

• Fixed output options: 1.0V to 3.3V

• PSRR: 65dB typical at 100Hz

• Fast start-up time: 80µs

• Stable with low ESR, 1µF ceramic output capacitor

• Excellent Load/Line Transient Response

• Low dropout: 300mV typical at 300mA

• Current limit protection

• Short circuit protection

• Thermal shutdown protection

• Ambient temperature range: -40ºC to 85°C

• SOT25 and DFN2020-6: Available in “Green” Molding Compound (No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

Applications

• XDSL Routers

• Wireless LAN Cards

• Desktop and Notebook Computers

• Battery Powered Equipments