Features
6~65V wide input voltage range
Maximum 1A constant output current
PWM/DC input for dimming control
Hysteretic PFM operation eliminates external compensation design
Integrated power switch with 0.3ohm low Rds(on)
Full protections: UVLO/ Start-Up/ OCP/ Thermal/
LED Open/Short-Circuit
Only 5 external components required
Package MSL Level : 3

Product Description
MBI6663 is a step-down constant-current high-brightness LED driver to
provide a cost-effective design solution for interior/exterior illumination
applications. It is designed to deliver constant current to light up high
power LED with only 5 external components. With hysteretic PFM control
scheme, MBI6663 eliminates external compensation design and makes
the design simple.
The output current of MBI6663 can be programmed by an external resistor and dimmed via pulse width
modulation (PWM) or DC voltage through DIM pin to achieve higher efficiency linear current modulation.
MBI6663 features completed protection design to handle faulty situations. The start-up function limits the inrush
current while the power is switched on. Under voltage lock out (UVLO), over temperature protection (OTP), and
over current protection (OCP) guard the system to be robust and keep the driver away from being damaged which
results from LED open-circuited, short-circuited and other abnormal events. MBI6663 provides thermal-enhanced
SOP-8 and TO-252 packages to handle power dissipation more efficiently.

Applications
 Signage and Decorative LED Lighting
 High Power LED Lighting
 Constant Current Source