MIC39150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 MIC39150, MIC39151, and MIC39152 are 1.5A LDO voltage regulators that provide a low-voltage, high-current output with a minimum of external components. Utilizing proprietary Super βeta PNP® pass element, the MIC39150/1/2 offers extremely low dropout (typically 375mV at 1.5A) and low ground current (typically 17mA at 1.5A).The MIC39150/1/2 are ideal for PC add-in cards that need to convert from 3.3V to 2.5V or 2.5V to 1.8V with a guaranteed maximum dropout voltage of 500mV over all operating conditions. The MIC39150/1/2 exhibit fast transient response for heavy switching applications and requires only 10µF of output capacitance to maintain stability and achieve fast transient response.The MIC39150/1/2 is fully protected with current limiting, thermal shutdown, reverse battery protection/lead insertion, and reverse leakage protection. The MIC39151 offers a TTL logic-compatible enable pin and an error flag that indicates undervoltage and overcurrent conditions. Offered in fixed voltages of 2.5V, 1.8V, and 1.65V, the MIC39150/1 comes in the TO-220 and TO-263 (D²Pak) packages. The MIC39152 adjustable option allows programming the output voltage anywhere between 1.24V and 15.5V and comes in 5-Pin, TO-263 (D²Pak) and TO-252 (D-Pak) packages.For applications requiring input voltage greater than 16V or automotive load-dump protection, see the MIC29150/1/2/3 family.

特性 Features

•1.5A minimum guaranteed output current
•500mV maximum dropout voltage over temperature
•Ideal for 3.0V to 2.5V conversion
• Ideal for 2.5 to 1.8V or 1.65V conversion
•1% initial accuracy
•Low ground current
•Current limiting and thermal shutdown
•Reverse battery and reverse lead insertion protection
•Reverse leakage protection
•Fast transient response
•TTL/CMOS-compatible enable pin (MIC39151/2 only)
•Error flag output (MIC39151 only)
•Adjustable output (MIC39152 only)
•Power D-Pak package (TO-252) Adjustable only
•Power D²Pak Package (TO-263)

简介

MIC39150属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC39150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。