MIC24056中文资料29V/12A Hyper Light Load™ DC-DC Buck Regulator数据手册Microchip规格书

描述 Description

The MIC24056 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture. The MIC24056 operates over a supply range of 4.5V to 19V. It has an internal linear regulator which provides a regulated 5V to power the internal control circuitry. MIC24056 operates at a constant 600kHz switching frequency in continuous-conduction mode and can be used to provide up to 12A of output current. The output voltage is adjustable down to 0.8V.HyperLight Load® architecture provides the same high efficiency and ultra-fast transient response as the Hyper Speed Control™ architecture under medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous mode operation.The MIC24056 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, thermal shutdown, internal soft start to reduce the inrush current, foldback current-limit and \"hiccup\" mode short-circuit protection. The MIC24056 includes a power good (PG) output to allow simple sequencing. The 12A Hyper Speed Control™ part, MIC24055, is also available.

特性 Features

• HyperLight Load® efficiency - up to 80% at 10mA
•High delta V operation (VIN = 19V and VOUT = 0.8V)
• Input voltage range: 4.5V to 19V
• Up to 95% efficiency
• ±1% feedback accuracy
• 600kHz switching frequency
• Foldback current-limit and \"hiccup\" mode short-circuit protection
• -40°C to +125°C junction temperature range
• Available in 28-pin 5mm — 6mm QFN package

简介

MIC24056属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MIC24056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。