MIC22705中文资料1MHz 7A Synchronous Buck Regulator数据手册Microchip规格书

描述 Description

The MIC22705 is a high-efficiency, 7A integrated switch synchronous buck (step-down) regulator. The MIC22705 is optimized for highest efficiency, achieving more than 95% efficiency while still switching at 1MHz. The ultra-high speed control loop keeps the output voltage within regulation even under the extreme transient load swings commonly found in FPGAs and low-voltage ASICs. The output voltage is pre-bias safe and can be adjusted down to 0.7V to address all low-voltage power needs.

The MIC22705 offers a full range of sequencing and tracking options. The Enable/Delay (EN/DLY) pin, combined with the Power Good (PG) pin, allows multiple outputs to be sequenced in any way during turn-on and turn-off. The Ramp Control™ (RC) pin allows the device to be connected to another product in the MIC22xxx and/or MIC68xxx family, to keep the output voltages within a certain ∆V on start-up.

特性 Features

• Input voltage range: 2.9V to 5.5V
• Output voltage adjustable down to 0.7V
• Output load current up to 7A
• Safe start-up into a pre-biased load
• Full sequencing and tracking capability
• Power Good output
• Efficiency >95% across a broad load range
• Ultra-fast transient response
• Easy RC compensation
• 100% maximum duty cycle
• Fully-integrated MOSFET switches
• Thermal-shutdown and current-limit protection
• -40°C to +125°C junction temperature range

简介

MIC22705属于集成电路（IC）的DCDC开关稳压器。由制造生产的MIC22705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。