SP1238F中文资料降压系列数据手册Si-Power规格书

描述 Description

The SP1238F is a synchronous buck Regulator with output current to 3.1A.It is designed to allow for operating a wide supply voltage range from 8V to 30V. The internal compensation requires a minimum number of readily available standard external components.

        The SP1238F operates in the CV(Constant output Voltage) mode, and the OCP current value is set by current sensing power resisters.

        The SP1238F is suitable for the DC/DC switching power applications when requested the current limit function. The devices are available in SOP-8L package and require very few external devices for operation.

特性 Features

• 8V ~ 30V Supply Voltage Range
• Low Quiescent Current to 0.6mA (12V to 5V)
• 32V Input Over Voltage Protection
• Constant Output Voltage 5.1V
• 2% Constant Output Voltage Accuracy
• Programmable Frequency（60KHz ~ 1MHz）
• Hiccup Short Circuit Protection
• Duty Cycle Range (0~100%)
• Internal Soft Start 3ms
• CV Mode Control
• SOP-8L Package

应用 Application

• Car Chargers
• Portable Charger Devices
• DC/DC Converters with Current Limit