Exar Corporation XRP7613IDBTR-F

Description
The XRP7613 is a non-synchronous step-down converter with an integrated FET designed to drive high-power LEDs at up to 1.2A of continuous current. It operates with a wide input voltage range of 7.0V to 36V, allowing for single-supply operations from industry-standard 12V, 18V, or 24V power rails.
Based on a hysteretic PFM control scheme, the XRP7613 can operate at switching frequencies up to 1MHz. This enables the use of small external components while providing fast transient response and high efficiency. The output current is programmable from 150mA to 1.2A using an external sense resistor.

Features
1.2A continuous output LED current (150mA to 1.2A programmable range)
7V to 36V single-rail input voltage
PWM and analog dimming capability (up to 40kHz frequency)
LED current foldback thermal control (selectable automatic linear dimming of LED current with temperature shutdown control)
Built-in soft start
Open LED, LED short circuit, and over-temperature protections
RoHS compliant "green"/halogen-free 8-pin exposed pad SOIC package

Applications
General lighting and displays
Architectural and accent lighting
Medical and industrial instrumentation
Video projectors