MIC2253中文资料3.5A 1MHz High Efficiency Boost Regulator w/OVP & Softstart数据手册Microchip规格书

描述 Description

The MIC2253 is a high power density 1MHz PWM DC/DC boost regulator. The 3.5A minimum switch current limit combined with a 1MHz switching frequency allows the MIC2253 to use smaller inductors and deliver high power in a tiny solution size. The 2.5V to 10V input voltage range of MIC2253 allows direct operation from 1- and 2-cell Li-Ion as well as 3- to 4-cell NiCad, NiMH, Alkaline, or lithium batteries. Maximum battery life is assured with a low 0.1µA shutdown current. To prevent a high inrush current, a minimum 1ms soft-start period is set by default and the MIC2253 has the ability to extend the soft-start period with an external capacitor.

特性 Features

• 3.5A minimum switch current
• 1.245V ±3% feedback voltage
• 2.5V to 10V input voltage
• Output over-voltage protection (OVP)
• Externally programmable soft-start
• Output voltage up to 30V (max)
• Fixed 1MHz operation
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简介

MIC2253属于集成电路（IC）的DCDC开关稳压器。由制造生产的MIC2253稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。