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