1ch Buck Type (Quasi-Resonant Control) White LED Driver for Large LCD Included 250V MOSFET - BM533Q11 (New)

BM533Q11 is a high efficiency driver for white LEDs and designed for large LCDs. BM533Q11 is built-in a quasi-resonant control method DCDC converter that employ an array of LEDs as the light SOURCE. BM533Q11 is built-in 250V MOSFET and owing to the external current setting resistance, a power supply design with a high degree of freedom can be achieved.

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BM533Q11 Active DIP7AK 2000 50 Tube Yes
Topology Buck
Number of Outputs 1
Vin(Min.)[V] 10.0
Vin(Max.)[V] 35.0
Frequency(Max.)[MHz] 0.6
Dimming PWM / Analog
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
    • Quasi-Resonant Switching Mode
    • Built-in 250V MOSFET
    • Maximum Frequency 600kHz
    • VCC pin: Under Voltage Protection
    • SOURCE pin: Leading-Edge-Blanking function
    • PWM and ADIM dimming operating
    • FAIL signal output (ADIM pin)
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New Products:
ROHM Semiconductor reserves the right to change the specifications at any time.
Technical Data
Application Note

Thermal Resistance