ISL6719数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The ISL6719 is a low cost linear regulator for generating a low voltage bias supply from intermediate distributed voltages commonly used in telecom and datacom applications. It provides a single adjustable output rated at 100mA from either the input source or an auxiliary source such as a transformer winding. The auxiliary source is selected whenever it has sufficient voltage to sustain the output.The ISL6719 may be used as a start-up or a continuous low power regulator. When operating as a start-up regulator, it is capable of sourcing 100mA from a 100V source for short durations. This period of time allows the power supply to start-up and provide an alternate power source, such as the output of a transformer winding, to the AUXIN input. This allows the regulated output to operate from a lower source voltage to minimize power loss.

特性 Features

• 100V+ input capability
• Adjustable output from 1.5V to 20V
• Up to 100mA output current
• Overcurrent protection
• Over-temperature protection
• ENABLE and ENABLE_N inputs
• Package compliant with IPC2221A, creepage and clearance spacing requirements

应用 Application

• Telecom/datacom DC/DC converters
• Low power bias supplies