Exar offers a broad array of power management integrated circuits (ICs) that are used in a wide variety of end applications.

Exar’s state of the art solutions provide high efficiency, low quiescent current, small size and the industry’s best price/performance ratio.

Many of Exar’s most advanced power management ICs are offered in thermally enhanced, lead-free DFN or QFN packages for the best blend of low thermal impedance and minimal circuit board area.

Exar power management products can be used as stand alone solutions but are designed to be used together to create a complete power management system. This product group includes low drop out linear regulators (LDOs), DC to DC switching regulators,PWM controllers, charge pumps, and microprocessor supervisors.

The XRP7620 is a multi purpose 4-channel independently adjustable current sink driver. Optimized for LED backlighting and RGBW/RGBA color mixing applications, the XRP7620 can also be used as a generic software programmable current sink I/O expander.

Supporting an industry standard 2-line I2C serial interface, the XRP7620 provides full independent control of each channel and can be programmed up to a current of 31.5mA in steps of 500µA. Uniform display brightness is ensured through a better than 3% channel to channel current matching. 5 internal registers are provided to set operational configuration and individual channel current programmation. A specific shutdown mode allows the device to retain the previously loaded configuration – operational and current programming – in order to be reused upon the next enabling.

The XRP7620 is designed to operate from a single cell lithium-ion battery or fixed 3.3V or 5.0V power rails and is available in a RoHS compliant, “green”/halogen free space saving 8-pin 2mmx3mm DFN package


  • 4-Channel LED Current Sink Driver
  • Individual Channel Current Control
  • Up to 31.5mA per channel / 500µA Steps
  • 100mV Channel Dropout Voltage
  • I2C Serial Interface Control
  • 2.7V - 5.5V Input Voltage Range
  • 3% Channel Current Matching
  • Configuration Retention in Shutdown
  • Shutdown Current<1µA
  • Thermal and UVLO Built-in Protection
  • “Green”/Halogen Free 2x3mm 8-Pin DFN package

4-Channel Adjustable Current I2C Controlled LED Driver

Download Center



Mfr Part#: XRP7620EVB
Available In: BOX

Evaluation Board for XRP7620 Series 4 Channel LED Current Sink Driver


Technical Specifications:

Type: Core Supported:
LED Driver Evaluation XRP7620
See the Download Center for a complete library of supporting documentation.


$51.28 USD (each)
1+ $51.28

Other quantities & packages (Reels) may also be available


Qty in Stock : 0
Reserve Stock:
Factory Stock: N/A
Factory Lead-Time: N/A
Min. Order Qty: 1
Multiple of: 1
Add to Cart