SLB628 高效率1.2MHz 2A升壓轉換器

小鄭

描述
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.

特性
• 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

應用
• Battery-Powered Equipment
• Set-Top Boxed
• LCD Bais Supply
• DSL and Cable modems and Routers
• Networking cards powered from PCI
or PCI express slots

原理圖

小鄭

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