MIC2102中文资料38V DC-DC Buck Controller with Hyper Speed Control™数据手册Microchip规格书

描述 Description

The MIC2101/02 are constant-frequency, synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2101/02 operates over an input supply range from 4.5V to 38V and can be used to supply up to 15A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 200kHz to 600kHz. Hyper Light Load™ architecture provides the same high-efficiency and ultra-fast transient response as the Hyper Speed Control architecture under the medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous-mode operation.The MIC2101/02 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include under voltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, fold-back current limit, \"hiccup\" mode short circuit protection and thermal shutdown.

特性 Features

• Hyper Speed Control™ architecture enables
• Any Capacitor™ stable
• 0.8V Reference Voltage with ±1% accuracy
• Hyper Light Load Control (MIC2101 only)
• Enable input, Power-Good output
• Programmable current limit and fold-back \"hiccup\" mode short-circuit protection
• Supports safe start-up into a pre-biased output
• -40°C to +125°C junction temperature range

简介

MIC2102属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由Microchip制造生产的MIC2102DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。