AZ1117I中文资料LOW DROPOUT LINEAR REGULATOR WITH INDUSTRIAL TEMPERATURE RANGE数据手册Diodes规格书

描述 Description

The AZ1117I is available in industrial temperature range low dropout three-terminal regulator.
The AZ1117I is optimized for low voltage where transient response and minimum input voltage are critical. It provides current limit and thermal shutdown. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to be within ±1%. On-chip thermal shutdown provides protection against a combination of high current and ambient temperature that would create excessive junction temperature.
The AZ1117I is available in 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V fixed output voltage versions and ADJ output voltage version. The fixed versions integrate the adjust resistors. It is also available in an adjustable version which can set the output voltage with two external resistors.
The AZ1117I is available in the industry-standard SOT223 and TO252-2 power package.

特性 Features

Current Limit: 1.35A (Typ)
Output Noise from 10Hz to 10KHz: 0.003% of VOUT
PSRR at IOUT = 300mA and f = 120Hz: 70dB
Output Voltage Accuracy: ±1% (Except 1.2V Version)
On-Chip Thermal Shutdown
Maximum Quiescent Current: IQMAX = 6mA
Compatible with Low ESR Ceramic Capacitor
Operation Junction Temperature: -40°C to +125°C

应用 Application

USB Device
Add-On Card
DVD Player
PC Motherboard

简介

AZ1117I属于集成电路（IC）的线性+开关稳压器。由制造生产的AZ1117I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。