General Description
The MAX16800 current regulator operates from a 6.5V to 40V input voltage range and delivers up to a total of
350mA to one or more strings of high-brightness LEDs. The output current of the MAX16800 is adjusted by
using an external current-sense resistor in series with the LEDs. An enable input allows wide-range “pulsed” dimming. Wave-shaping circuitry reduces EMI.

FEATUREs
+6.5V to +40V Operating Range
Adjustable Level (35mA to 350mA)
±3.5% Output Current Accuracy
Integrated Pass Element with Low-Dropout Voltage (0.5V typ)
Output Short-Circuit Protection
+5V Regulated Output with 4mA Source Capability
Thermal Shutdown
Differential LED Current Sense
High-Voltage Enable Pin for Dimming Interface
Low Shutdown Supply Current (12μA typ)
Low 204mV Current-Sense Reference Reduces Power Losses
Wave-Shaped Soft Edges Reduce Radiated EMI During PWM Dimming
Available in Small, Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN Package
-40°C to +125°C Operating Temperature Range

APPLICATIONs
Automotive Interior: Map, Courtesy, and Cluster Lighting
Automotive Exterior: Tail Lights and CHMSL
Warning Lights for Emergency Vehicles
Navigation and Marine Indicators
General Illumination
Signage, Gasoline Canopies, Beacons