MIC29312中文资料3.0A LDO Adj. + Shutdown数据手册Microchip规格书

描述 Description

The MIC29310 and MIC29312 are low cost versions of MIC29300 family low-dropout (LDO) regulators. Manufactured on proprietary Super βeta PNP® process, the MIC29310/2 is a 3A LDO regulator with very low-dropout voltage (600mV over the full load) and low ground current. Along with a total accuracy of ±2% (over temperature, line and load regulation), these regulators feature very fast transient recovery from input voltage surges and output load current changes.The MIC29310 is available in fixed 3.3V and 5V outputs voltages; the MIC29312 has an adjustable output which can be set by two external resistors to a voltage between 1.24V to 15V. In addition, all versions are fully protected against overcurrent faults, reversed input polarity, reversed lead insertion, and over-temperature operation.A TTL logic-enable (EN) pin is available in the MIC29312 to shutdown the regulator. When not used, the device can be set to continuous operation by connecting EN to the input (IN). The MIC29310/2 is available in the standard 3- and 5-pin TO-220 and TO-263 packages with an operating junction temperature range of 0°C to +125°C.For applications requiring even lower dropout voltage, input voltage greater than 16V, or an error flag, see the MIC29300/29301/29302/29303.

特性 Features

• Low cost versions of MIC29300 family
• Fast transient response
• 3A current over full temperature range
• 600mV dropout voltage at full load
• Low ground current
• Accurate 1% guaranteed tolerance
• Zero current shutdown mode (MIC29312)
• Fixed voltage and adjustable versions

简介

MIC29312属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC29312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。