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