SLB628 2V-24V 2A dcdc升压恒压芯片

内部4A限流、自动调频、内置80mΩ功率管

概述

The SLB628 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The SLB628 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life.

The SLB628 features automatic shifting to pulse frequency modulation mode at light loads. The SLB628 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The SLB628 is available in a small 6-pin SOT-23 package.

特点

• Integrated 80mΩ Power MOSFET

• 2V to 24V Input Voltage

• 1.2MHz Fixed Switching Frequency

• Internal 4A Switch Current Limit

• Adjustable Output Voltage

• Internal Compensation

• Up to 28V Output Voltage

• Automatic Pulse Frequency Modulation

Mode at Light Loads

• up to 96% Efficiency

• Available in a 6-Pin SOT23-6 Package

应用

• Battery-Powered Equipment

• Set-Top Boxed

• LCD Bais Supply

• DSL and Cable Modems and Routers

• Networking cards powered from PCI

or PCI express slots

原理图