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Mean Well LDB-300L DC/DC LED Driver CC 300mA - Buck-boost

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

SKU:

LDB-300L

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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

12 Watt
Output Voltage

40 Volt
Rated Current

0.3 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-300L for a compact LED downlight module?

Yes, this is a 300mA constant current buck-boost LED driver intended for LED loads such as compact downlight modules, provided the load fits its electrical range. It supports a 2-40V CC range and up to 12W output.

Is the LDB-300L suitable for small waterproof signage modules?

Yes, its IP67 waterproof rating makes it appropriate for wet or exposed environments where the LED module itself also matches the driver requirements. Because it is a constant current model, it should be used with constant current signage modules rather than constant voltage LED products.

Can the LDB-300L power a small LED array in outdoor conditions?

It can be used for a small LED array when the array requires 300mA constant current and falls within the 2-40V range. The IP67 rating and -40°C to +71°C operating range make it better suited to harsh environments than indoor-only drivers.

Would the LDB-300L fit low-power LED projects where input voltage may vary?

Yes, the buck-boost design is intended for applications where the source varies within the listed 9-36VAC input range. With a 12W rating and high efficiency up to 91%, it is aimed at compact low-power constant current LED use.

How do I determine if my LEDs are compatible with the LDB-300L?

This driver provides constant current at 300mA, not constant voltage, so the LED load must match that operating mode. The CC output voltage range is 2-40V, and the number of LEDs depends on the forward voltage of each LED rather than a single fixed count.

How does the LDB-300L compare with the other LDB series versions?

In the sibling list, LDB-300LW matches this model at 300mA, 2-40V, and 12W; LDB-350L and LDB-350LW are 350mA, 2-40V, and 14W; LDB-500L and LDB-500LW are 500mA, 2-32V, and 16W; and LDB-600L and LDB-600LW are 600mA, 2-30V, and 18W. The LDB-300L is the pin style version in the 300mA, 12W part of the range.

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-350LW DC/DC LED Driver CC 350mA - Buck-boost	14W	40V	0.35A	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

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