MIC23156中文资料3MHz 1.5A HyperLight Load® Synchronous Buck Regulator w/I2C Control数据手册Microchip规格书

描述 Description

The MIC23156 is a high-efficiency 1.5A synchronous buck regulator with HyperLight Load® mode and dynamic voltage scaling control through I2C. HyperLight Load provides very high efficiency at light loads and ultra-fast transient response. The ability to dynamically change the output voltage and maintain high output voltage accuracy make the MIC23156 perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. Fast mode plus I2C provides output voltage and chip enable/disable control from standard I2C bus with I2C clock rates of 100kHz, 400kHz, and 1MHz.

The MIC23156 is designed for use with 1µH, and an output capacitor as small as 2.2µF that enables a total solution size, less than 1mm in height.

The MIC23156 is available in both 16-ball, 0.4mm Pitch, 1.81mm x 1.71mm wafer level chip scale (WLCSP) with an operating junction temperature range of -40°C to +125°C.

特性 Features

• Input voltage: 2.7V to 5.5V
• Up to 1.5A output current
• 1MHz I2C-controlled adjustable output: VOUT = 0.7 to 2.4V in 10mV steps
• High output voltage accuracy (±1.5% over temperature)
• Fast pin selectable output voltage
• Programmable soft-start using external capacitor
• Ultra-low quiescent current of 30µA when not switching
• Thermal-shutdown and current-limit protection
• Safe startup in to pre-biased output
• Stable with 1µH output inductor and 2.2µF ceramic capacitor
• Up to 93% peak efficiency
• Junction temperature range of -40°C to +125°C

简介

MIC23156属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MIC23156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。