AP2121中文资料single-ldos数据手册Diodes规格书

描述 Description

The AP2121 series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection and a chip-enable circuit (5-pin products only).

The AP2121 series feature high supply voltage ripple rejection, low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices.

The AP2121 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V, 3.2V and 3.3V versions.

特性 Features

· Low Dropout Voltage at IOUT=100mA: 150mV Typical (Except 1.2V, 1.3V and 1.5V Versions)
· Low Standby Current: 0.1μA Typical
· Low Quiescent Current: 25μA Typical
· High Ripple Rejection: 70dB Typical (F=1kHz)
· Output Current: More Than 200mA (300mA Limit)
· Extremely Low Noise: 30μVrms (10Hz to 100kHz)
· Excellent Line Regulation: 4mV Typical
· Excellent Load Regulation: 12mV Typical
· High Output Voltage Accuracy: ±2%
· Excellent Line Transient Response and Load Transient Response
· Compatible with Low ESR Ceramic Capacitor (as Low as 1μF)

应用 Application

· Mobile Phones, Cordless Phones
· Wireless Communication Equipment
· Portable Games
· Cameras, Video Recorders
· Sub-board Power Supplies for Telecom Equipment
· Battery Powered Equipment

简介

AP2121属于集成电路（IC）的线性+开关稳压器。由Diodes制造生产的AP2121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。