MIC33M350数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The MIC33M350 is a high-efficiency, low-voltage input, 3A Continuous current synchronous step-down Power Module. The Constant-ON-Time (COT)control architecture with HyperLight Load™ provides very high efficiency atlight loads, while still having ultra-fast transient response.The MIC33M350 output voltage is set by two VSEL (Voltage Selection) pins, up to nine different values. This method eliminates the need for an external feedback resistor divider and improves the output voltage setting accuracy. The 2.4V to 5.5V input voltagerange, low shutdown and quiescent currents make the MIC33M350 ideal forsingle-cell Li-Ion battery-powered applications. The 100% duty cycle capabilityprovides low dropout operation, extending operating range in portable systems. The MIC33M350 pinout iscompatible with the MIC33M356 I2C-based programmable regulator version, suchthat applications can be easily converted. An open-drain Power Good output isprovided to indicate when the output voltage is within 9% of regulation andfacilitates the interface with an MCU, or power sequencing. If set in shutdown(EN=GND), the MIC33M350 typically draws 1.5 µA, while the output is dischargedthrough 10 ohm pull-down. The MIC33M350 is available in athermally efficient, 24 Lead 3mm x 4.5mm x 1.8mm thin QFN package, withan operating junction temperature range from –40°C to +125°C.

简介

MIC33M350属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MIC33M350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。