AAT3236数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The AAT3236 is a MicroPower low dropout (LDO) linear regulator designed to deliver a continuous 300mA output load current and is capable of handling short duration current peaks up to 500mA. With a very small footprint SOT23-5 package, it is ideally suited for portable applications where low noise, high power supply ripple rejection (PSRR), extended battery life, and small size are critical. The AAT3236 features fast transient response and low output self noise for powering sensitive RF circuitry. Other features include low quiescent current, typically 100μA, and low dropout voltage, typically 300mV at full output load current. The device has internal output short-circuit protection and thermal shutdown to prevent damage under extreme conditions.


The AAT3236 also features a low-power shutdown mode for longer battery life. A bypass pin is provided to improve PSRR performance by connecting an external capacitor from the device reference output to ground.
The AAT3236 is available in a Pb-free, space-saving SOT23-5 or SC70JW-8 package in five factory-programmed voltages: 2.5V, 2.8V, 3.3V, 3.5V, or 3.6V.

特性 Features

·500mA Peak Output Current
·Low Dropout - Typically 300mV at 300mA
·Guaranteed 300mA Output
·High Accuracy: ±1.5%
·100μA Quiescent Current
·High Power Supply Ripple Rejection
·70dB at 1kHz
·50dB at 10kHz
·Very Low Self Noise: 45μVrms
·Noise Reduction Bypass Capacitor
·Short-Circuit Protection
·Over-Temperature Protection
·Shutdown Mode for Longer Battery Life
·Low Temperature Coefficient
·Five Factory-Programmed Output Voltages
·SOT23 5-Pin or SC70JW 8-Pin Package

简介

AAT3236属于集成电路（IC）的线性+开关稳压器。由制造生产的AAT3236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。