BLL2452S中文资料降压型DC/DC转换器(DC/DC Step-down Converter)数据手册Belling规格书

描述 Description

The BLL2452S is a fully integrated synchronous rectified step-down converter that provides wide 4.2V to 16V input voltage range and 2.5A continuous load current capability. The BLL2452S can achieve high efficiency and reduce power loss at light load. In shutdown mode, the maximum supply current is about 3μA.

The BLL2452S protection function includes cycle-by-cycle current limit, UVLO and thermal shutdown. Besides, internal soft-start prevents inrush current at fast power-on. This device uses Constant On-Time (COT) control mode which provides fast load transient response. Internal loop compensation function reduces the external compensator components and simplifies the design process.

The BLL2452S requires a minimum number of readily available standard external components and is available in a SOT23-6 tiny package.

特性 Features

• Wide input voltage range: 4.2V to 16V
• 0.8V reference voltage
• 3μA (Max) shutdown current
• High efficiency at light load
• Cycle-by-cycle current limit
• Under voltage lockout (UVLO)
• Available in a SOT23-6 tiny package
• RoHS compliant