MIC29302A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 MIC29302A is a high-current, low-cost, low-dropout voltage regulator which uses proprietary Super βeta PNP® process with a PNP pass element. The 3A LDO regulator features 450mV (full load) dropout voltage and very low ground current. Designed for high-current loads, these devices also find applications in lower current, low dropout-critical systems, where their dropout voltage and ground current values are important attributes.Along with a total accuracy of ±2% (over temperature, line and load regulation) the regulator features very-fast transient recovery from input voltage surges and output load current changes.The MIC29302A has an adjustable output which can be set by two external resistors to a voltage between 1.24V to 15V. In addition, the device is fully protected against over current faults, reversed input polarity, reversed lead insertion, and overtemperature operation. A TTL logic enable (EN) pin is available in the MIC29302A to shutdown the regulator. When not used, the device can be set to continuous operation by connecting EN to the input (IN). The MIC29302A is available in the standard and 5-pin TO-263 and TO-252 packages with an operating junction temperature range of -40°C to +125°C.

特性 Features

High current capability:  3A over full temperature range       
Low dropout voltage of 450mV at full load
Low ground current
Accurate 1% guaranteed tolerance
Extremely fast transient response
Zero-current shutdown mode
Error flag signals output out-of-regulation
Adujstable output voltage
Available in TO-263-L and TO-252-5L packages

简介

MIC29302A属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC29302A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。