Exar Corporation is Powering Connectivity by delivering highly differentiated silicon, software and subsystem solutions to secure and optimize data for storage and transmission across traditional and packet-based networks. A comprehensive knowledge of end-user markets along with the underlying analog and digital technologies allows Exar to offer innovative solutions to customers in a wide range of markets from enterprise and SMB, to consumer and industrial.

The XRP7604EVB Evaluation Board is a related product complementing the XRP7604 which is a non-synchronous voltage mode PWM step down converter optimized to drive a string of high power LEDs at up to 1 A of continuous current. The device has a wide 4.5 V to 29 V input voltage range allowing for single supply operations from industry standard 5 V, 12 V or 24 V power rails. The XRP7604 is pin-to-pin compatible with Exar’s XRP7603 and SP7600 devices providing the most flexibility when designing evolutive and scalable lighting solutions from 500 mA to 2 A and is offered in a compact thermally enhanced lead free RoHS compliant 8-pin SO package.

The XRP7603 is a non-synchronous voltage mode PWM step down converter with integrated high side FET optimized to drive high power LEDs at up to 2 A of continuous current. A 1.2 MHz constant operating frequency allows for small external components selection while an internal control loop compensation reduces the overall component count and solution footprint. With a 2.5% output setpoint accuracy and an input feedforward control, these devices improve stability as well as typical transient and regulation responses. Dimming and shutdown mode is provided via an enable function when required. A programmable over current and under voltage lock out protection insures safe operations under abnormal operating conditions.


  • 1 A Continuous Output Current Capable.
  • 4.5 V to 29 V Single Rail Input Voltage Range.
  • 1.2 MHz Constant Switching Frequency Operation.
  • Internal Control Loop Compensation.
  • Feed-Forward Control Stability Enhanced.
  • PWM and Analog Dimming Capability.
  • Programmable Over Current Protection.
  • Scalable and Evolutive Single Design.
  • Pin Compatible with 0.5 A XRP7603 and 2 A SP7600.
  • Thermally Enhanced Package.
  • RoHS Compliant “green”/halogen free 8-pin SO package.


  • General Lighting and Displays.
  • Architectural and Accent Lighting.
  • Security and Traffic Signals.
  • Medical and Industrial Instrumentation.
  • Video Projectors.

For More Information About XRP760 Series: CLICK HERE.


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Mfr Part#: XRP7604EVB
Available In: BULK

Evaluation Board for XRP7604 Non-Synchronous Buck LED Driver

Technical Specifications:

Type: Core Supported:
LED Driver Evaluation XRP7604
See the Download Center for a complete library of supporting documentation.


$53.15 USD (each)
1+ $53.15

Other quantities & packages (Reels) may also be available


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