dc-dc低壓24V升壓恒壓IC SLB628兼容SSP8711

小鄭

GENERAL DESCRIPTION


  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.




FEATURES
• 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




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




TYPICAL APPLICATION