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Mean Well LDB-350LW DC/DC LED Driver CC 350mA - Buck-boost

contant current, buck-boost, high efficiency up to 91%, wire style

SKU:

LDB-350LW

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Description

Features

DC/DC buck-boost converter

Constant current output: 300mA to 600mA

Wide input voltage: 9~36VDC

Wide output LED string voltage: 2~40VDC

High efficiency up to 91%

Comply with BS EN/EN55015 and FCC part15

Build-in PWM and remote ON/OFF control

Protections: Short circuit/Over temperature

Cooling by free air convection

Fully encapsulated with IP67 level for pin and wire style

Compact size

High reliability

Suitable for driving illumination LED

3 years warranty

General Specification

Current accuracy	±5%
Over temperature protection	Shut down, auto-recovery
Efficiency	90% (typical)
Short circuit protection	Regulated at rated output current
Working temperature	-40°C to +70°C
EMC	Compliance to EN55015 class B, EN61000-4-2,3,4,6,8, EAC TP TC 020
Temp. Coefficient	±0.03% / °C
Dimension (LxWxH) (mm)	31.8x20.3x12.2mm
Potting material	Expoxy(UL94-V0)

Specifications

Brand

Mean Well
Series

LDB Series
Power Rating

14 Watt
Output Voltage

40 Volt
Rated Current

0.35 Ampere
Input Voltage

9V~36V
Standards Met

CE,EAC
Operation Mode

Constant Current
Operating Temperature

-40°C~71°C
Warranty

3 Year
Length

3.18 cm
Width

2.03 cm
Height

1.22 cm
Weight

0.02 kg

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Frequently Asked Questions

Can I use the LDB-350LW for a 350mA LED downlight module?

Yes, this model is a constant current LED driver with a 350mA output, so it fits LED downlights designed for 350mA drive current. The LED load also needs to stay within the 2-40V constant current range and the 14W rating.

Is the LDB-350LW suitable for LED signage modules?

It can be used for signage modules or small LED arrays when the load is designed for constant current operation at 350mA. It is not a constant voltage driver, so it should be matched to LED modules that specify 350mA and stay within the 2-40V CC range.

Can this driver run a small custom LED array?

Yes, if the array is a constant current load rated for 350mA and its total forward voltage falls within 2-40V. The driver is rated at 14W, so the full LED load needs to remain inside that power limit.

How do I know if the LDB-350LW is compatible with my LEDs?

Match the LEDs by current first: this driver outputs 350mA constant current, not constant voltage. The LED string must operate within the 2-40V CC output range, and the number of LEDs depends on the forward voltage of each LED rather than a fixed LED count.

Is the LDB-350LW appropriate for wet or outdoor conditions?

The unit is rated IP67 Waterproof, so it is built for environments where water and dust resistance matter. It is also specified for operation from -40°C to +71°C, which supports demanding outdoor or industrial conditions.

Model	Power	Voltage	Current	IP Rating
Mean Well LDB-600LW DC/DC LED Driver CC 600mA - Buck-boost	18W	30V	0.6A	IP67	View
Mean Well LDB-600L DC/DC LED Driver CC 600mA - Buck-boost	18W	30V	0.6A	IP67	View
Mean Well LDB-500LW DC/DC LED Driver CC 500mA - Buck-boost	16W	32V	0.5A	IP67	View
Mean Well LDB-500L DC/DC LED Driver CC 500mA - Buck-boost	16W	32V	0.5A	IP67	View
Mean Well LDB-350L DC/DC LED Driver CC 350mA - Buck-boost	14W	40V	0.35A	IP67	View
Mean Well LDB-300LW DC/DC LED Driver CC 300mA - Buck-boost	12W	40V	0.3A	IP67	View
Mean Well LDB-300L DC/DC LED Driver CC 300mA - Buck-boost	12W	40V	0.3A	IP67	View

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