Specification	BM531Q11-Z

Applications	Backlight
Dimming	Analog, PWM
Frequency	400 kHz
Internal Switch(s)	True
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	105 ░C
Operating Temperature [Min]	-40 °C
Package / Case	7.62 mm
Package / Case	0.3 in, 7 Leads
Package / Case	8-DIP
Supplier Device Package	7-DIP
Topology	Step-Down (Buck)
Type	DC DC Regulator
Voltage - Supply (Max) [Max]	35 V
Voltage - Supply (Min) [Min]	9 V

BM531Q11 Series

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

Part	Type	Supplier Device Package	Applications	Internal Switch(s)	Frequency	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Min) [Min]	Dimming	Package / Case	Package / Case	Package / Case	Voltage - Supply (Max) [Max]	Topology	Number of Outputs	Mounting Type
Rohm Semiconductor BM531Q11-Z	DC DC Regulator	7-DIP	Backlight		400 kHz	-40 °C	105 ░C	9 V	Analog PWM	7.62 mm	0.3 in 7 Leads	8-DIP	35 V	Step-Down (Buck)	1	Through Hole

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.87
		10	$ 1.21
		100	$ 0.83
		500	$ 0.77
Newark	Each	1	$ 1.34
		10	$ 1.12
		100	$ 1.02
		500	$ 0.97
		1000	$ 0.92
		4000	$ 0.86

Description

General part information

BM531Q11 Series

BM531Q11 is a high efficiency driver for white LEDs and designed for large LCDs. BM531Q11 is built-in a quasi-resonant control method DCDC converter that employ an array of LEDs as the light source. BM531Q11 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.