Brief Description
The KTD2041 is an ideal power solution for IR LED driver with an integrated buck regulator. It has 9 high-precision current sinks that can be independently controlled via I2C interface.

FEATUREs
• 2.7V to 5.5V Input Voltage Operating Range
• Nine High-Precision Current Sinks
   ► LED Current Up to 32mA per Channel
   ► ±1% Typical Current Matching
   ► ±2% Typical Current Accuracy at 32mA
   ► 6-bit Current Dimming Control with I2C
   ► Independent On/Off Control
   ► Supports both Independent and Global Dimming
• High Efficiency Buck Regulator
   ► Integrated 200mΩ / 100mΩ High / Low-Side FET
   ► Adaptive On-Time Control with default 1MHz
   Switching Frequency, with factory programmable
   1.5MHz, 2MHz, and 2.5MHz options.
   ► Adaptive VOUT Control Based on the Headroom
   Voltages of the LED Current Sinks.
   ► Selectable Auto-Skip Mode or Forced-PWM mode
   at Light Loads
• 140μA Typical No-Load Supply Current
• Open-Drain ̅FAULT ̅̅̅̅̅̅̅̅̅ Signal Output and Fault Reset
• Extensive Fault Diagnostics
• -40°C - 85°C Operating Ambient Temperature Range
   Small UQFN-20 (3mm x 3mm) Package

APPLICATIONs
• IR LED Drivers
• Video Door Bells
• Security Cameras
• IRIS Recognition Cameras