SL1586A dcdc4.5V-28V降12V2A同步降压芯片

Features

• Wide 4.5V to 28V Operating Input Range

• 2A Continuous Output Current

• 500K Switching Frequency

• ECOT Mode Control with Fast Transient

Response

• Built-in Over Current Limit

• Built-in Over Voltage Protection

• Continuous Conduction Mode (CCM)

• Internal Soft-Start

• 100mΩ/50mΩ Low RDS(ON) Internal Power

MOSFETs

• Output Adjustable from 0.6

• No Schottky Diode Required

• Short Protection with Hiccup-Mode

• Integrated internal compensation

• Thermal Shutdown

• Available in SOT23-6 Package

• -40°C to +85°C Temperature Range

Applications

• Automotive Systems

• Network Terminal Equipment

• Security Monitoring Camera

• Printer Systems

• Industrial Power Systems

• Distributed Power Systems

General Description

The SL1586A is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power

MOSFETs. It offers a very compact solution to provide a 2A continuous output current over a wide input supply

range, with excellent load and line regulation. ECOT force-CCM control operation provides very fast transient

response and easy loop design as well as very tight output regulation.

The SL1586A requires a minimal number of readily available, external components and is available in a space saving

SOT23-6 package.

Typical Application Circuit

注：输入端靠近芯片对地加电解电容与105贴片电容对地，EN脚不用时上拉。

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