SG117中文资料Positive Adjustable +/-1% Tol数据手册Microchip规格书

描述 Description

The SG117 and SG117A are 3-terminal positive adjustable voltage regulators which offer improved performance over the original 117 design. A major feature of the SG117A is a reference voltage tolerance guaranteed within ± 1%, allowing an overall power supply tolerance to be better than 3% using inexpensive 1% resistors. Line and load regulation performance has been improved as well. Moreover, the SG117A reference voltage is guaranteed not to exceed 2% when operating over the full load, line and power dissipation conditions. The SG117A adjustable regulators offer an improved solution for all positive voltage regulator requirements with load currents up to 1.5A. In addition to replacing many fixed regulators, the SG117/A can be used in a variety of other applications due to its ‘floating’ design as long as the input-to-output differential maximum is not exceeded, such as a current source. A higher voltage version is available the SG117AHV and SG117HV which offers input voltage up to 60V.Available to DSCC -Microchip Ordering Part  Standard Microcircuit Drawing (SMD) SG117G-DESC Cross Reference 7703401TASG117IG-DESC Cross Reference 7703401UASG117K-DESC Cross Reference 7703401YASG117L-DESC Cross Reference 77034012ASG117K-JAN Cross Reference M38510/11704BYASG117K-JAN Cross Reference M38510/11704BYXSG117T-JAN Cross Reference M38510/11703BXASG117T-JAN Cross Reference M38510/11703BXX

特性 Features

Adjustable Output Down to 1.25V
1% Output Voltage Tolerance
0.01%/V Line Regulation
0.3% Load Regulation
Min. 1.5A Output Current
Typical 80dB Ripple Rejection
Available in Hermetic TO-257

简介

SG117属于集成电路（IC）的线性+开关稳压器。由制造生产的SG117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。