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

Name: Mean Well LDB-300L DC/DC LED Driver CC 300mA - Buck-boost
Brand: Mean Well
SKU: LDB-300L
Price: 9.73 USD
Availability: InStock

contant currentbuck-boosthigh efficiency up to 91%pin style

SKU LDB-300L

$9.73 USD

Shipping calculated at checkout.

Available to order

Overview

LDB-300L is the model of this series: typical efficiency 86%. Type Blank: Blank : pin style.

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
Built-in PWM and remote ON/OFF control
Protections: Short circuit / Over temperature
Cooling by free air convection
Fully encapsulated with IP67 level
Compact size
High reliability
Suitable for driving illumination LED
3 years warranty

Specifications

LDB-300LSpecifications from the official datasheet (2024-08-02 edition)

OUTPUT

CURRENT RANGE: 300mA
VOLTAGE RANGE^Note.4: 2 ~ 40VDC
CURRENT ACCURACY (Typ.): ±5%
RIPPLE & NOISE(max.)^Note.2: 150mVp-p
SWITCHING FREQENCY: 1000KHz
NO LOAD OUTPUT VOLTAGE: 75VDC

INPUT

VOLTAGE RANGE^Note.4: 9 ~ 36VDC
EFFICIENCY (max.) 12VDC: 86%
EFFICIENCY (max.) 24VDC: 90%
DC CURRENT Full load 12VDC: 930mA
DC CURRENT Full load 24VDC: 450mA
DC CURRENT No load: 2mA (Vin 24VDC)
FILTER: Capacitor

PWM DIMMING & ON/OFF CONTROL

REMOTE ON/OFF: Leave open if not use Power ON with dimming: DIM ~ -Vin >2 ~ 10VDC or open circuit Power OFF : DIM ~ -Vin < 0.5VDC or short
PWM FREQUENCY: 100 ~ 1KHz
MAX. PWM SIGNAL CURRENT: 1mA

PROTECTION

SHORT CIRCUIT: Regulated at rated output current Protection type: Can be continued, recovers automatically after fault condition is removed
OVER TEMPERATURE: Tj 145℃ typically(IC1) detect on main control IC Protection type : Shut down, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.: -40 ~ + 70℃(Refer to derating curve)
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +125℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03% / ℃
VIBRATION: 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
OPERATING CASE TEMP. (max.): 115℃

EMC

SAFETY STANDARDS: EAC TP TC 020/2011 approved
EMC EMISSION: Compliance to BS EN/EN55015, FCC part 15 class B, EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, criteria A, EAC TP TC 020

OTHERS

MTBF: 350Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H)
WEIGHT: LDB-L:15.6g(15pcs/Tube) ; LDB-LW:18g(20pcs/Box), Please order Base on MPQ
POTTING MATERIAL: Expoxy(UL94-V0)

MODEL ENCODING

Blank (this model): Blank : pin style
W: W : wire style

Test conditions and notes4

1.All parameters are specified at normal input(24VDC), rated load, 25℃ 70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf capacitor.
3.The output of LDB-L should not be connected to the input of the same unit or output from other sources.
4. If input voltage is 36V then the output voltage operating range had better <38V.

Technical drawings

LDB-300L Mechanical Specification — Mechanical Specification

LDB-300L Derating Curve — Derating Curve

LDB-300L Safe Operating Area — Safe Operating Area

LDB-300L PWM Dimming Control — PWM Dimming Control

LDB-300L Efficiency VS Output Voltage(Number — Efficiency VS Output Voltage(Number

LDB-300L Standard Tube Packing — Standard Tube Packing

Downloads

Datasheet1

LDB-300L datasheetLDB-L-SPEC.PDF · 2024-08-02 edition PDF Download

Certificates3

Mean Well LDD-H-DA-EMC Certificate PDF Download

LDD-H-DA-CE-dec Certificate PDF Download

LDD-H-DA-UK-dec Certificate PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

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 output range from a 9-36VDC input.

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 +70°C operating range (refer to the derating curve) 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 9-36VDC input range. With 300mA output and efficiency up to 90% (at 24VDC input), 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 LDB-L series, LDB-300LW matches this model at 300mA and 2-40V; LDB-350L and LDB-350LW are 350mA and 2-40V; LDB-500L and LDB-500LW are 500mA and 2-32V; and LDB-600L and LDB-600LW are 600mA and 2-30V. The LDB-300L is the pin style version in the 300mA part of the range.

Payment & Security

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Mean Well XLG-200-12-AB Power Supply 192W 12V - Adjustable and Dimmable 16A	192W	12V	16A	IP67	View
Mean Well LPC-60-1750 Power Supply 60W 1750mA	59.5W	34V	1.75A	IP67	View
Mean Well LDH DC/DC LED Driver CC 1050mA - Step-up - with Wire	63W	60V	1.05A	IP20	View
Mean Well HLG-480H-24B Power Supply 480W 24V- Dimmable 20A	480W	24V	20A	IP67	View
Mean Well HLG-320H-12 Power Supply 264W 12V 22A	264W	12V	22A	IP67	View
Mean Well HLG-240H-24A Power Supply 240W 24V - Adjustable 10A	240W	24V	10A	IP65	View
Mean Well HLG-240H-12 Power Supply 192W 12V 16A	192W	12V	16A	IP67	View
Mean Well HLG-150H-24B Power Supply 150W 24V- Dimmable 6.3A	151.2W	24V	6.3A	IP67	View
Mean Well HLG-150H-24 Power Supply 150W 24V 6.3A	151.2W	24V	6.3A	IP67	View
Mean Well HLG-120H-C350B Power Supply 150.5W 350mA - Dimmable	150.5W	430V	0.35A	IP65	View
Mean Well HLG-120H-C350AB Power Supply 150.5W 350mA - Adjustable and Dimmable	150.5W	430V	0.35A	IP65	View
Mean Well ELG-240-54 Power Supply 240W 54V 4.45A	240.3W	54V	4.45A	IP67	View
Mean Well ELG-100-48A Power Supply 96W 48V - Adjustable 2A	96W	48V	2A	IP65	View
Mean Well APC-25-700 Power Supply 25W 700mA	25.2W	36V	0.7A	IP42	View
TD-50-500-1750-E1P1 50W 500-1750mA CC Triac LED Driver - Selectable Output	—	—	—	Indoor	View
LTECH DALI-50-500-1750-F1P1 50W 500mA ~ 1750mA CC Dali LED Driver - Selectable Output	50W	58V	0.5A	Indoor	View
LTECH DALI-36-200-1200-U1P1 36W 200mA ~ 1200mA CC Dali LED Driver - Selectable Output	36W	58V	1.2A	Indoor	View
LTECH DALI-10-100-400-F1P1 10W 100mA ~ 400mA CC Dali LED Driver - Selectable Output	10W	47V	0.1A	Indoor	View
Mean Well ODLC-65A-1750 Power Supply 65W 1750mA(Auxiliary DC output)	63W	36V	1.75A	IP67	View
Mean Well ODLC-65A-1400 Power Supply 65W 1400mA (Auxiliary DC output)	64.4W	46V	1.4A	IP67	View
Mean Well ODLC-65A-1050 Power Supply 65W 1050mA (Auxiliary DC output)	65.1W	62V	1.05A	IP67	View
Mean Well ODLC-65-1750 Power Supply 65W 1750mA, Dimmable	63W	36V	1.75A	IP67	View
Mean Well ODLC-65-1400 Power Supply 65W 1400mA, Dimmable	64.4W	46V	1.4A	IP67	View
Mean Well ODLC-65-1050 Power Supply 65W 1050mA, Dimmable	65.1W	62V	1.05A	IP67	View
Mean Well ODLC-45A-500 Power Supply 45W 500mA (Auxiliary DC output)	45W	90V	0.5A	IP67	View
Mean Well ODLC-45A-1400 Power Supply 45W 1400mA (Auxiliary DC output)	44.8W	32V	1.4A	IP67	View
Mean Well ODLC-45A-1050 Power Supply 45W 1050mA (Auxiliary DC output)	45.15W	43V	1.05A	IP67	View
Mean Well ODLC-45-500DA Power Supply 45W 500mA, DALI	45W	90V	0.5A	IP67	View
Mean Well ODLC-45-500 Power Supply 45W 500mA, Dimmable	45W	90V	0.5A	IP67	View
Mean Well ODLC-45-1400DA Power Supply 45W 1400mA, DALI	44.8W	32V	1.4A	IP67	View
Mean Well ODLC-45-1400 Power Supply 45W 1400mA, Dimmable	44.8W	32V	1.4A	IP67	View
Mean Well ODLC-45-1050DA Power Supply 45W 1050mA, DALI	45.15W	43V	1.05A	IP67	View
Mean Well ODLC-45-1050 Power Supply 45W 1050mA, Dimmable	45.15W	43V	1.05A	IP67	View
Mean Well IDLC-65A-1750 Power Supply 65W 1750mA(Auxiliary DC output)	63W	36V	1.75A	IP20	View
Mean Well IDLC-65A-1400 Power Supply 65W 1400mA (Auxiliary DC output)	64.4W	46V	1.4A	IP20	View
Mean Well IDLC-65A-1050 Power Supply 65W 1050mA (Auxiliary DC output)	65.1W	62V	1.05A	IP20	View
Mean Well IDLC-65-1750DA Power Supply 65W 1750mA, DALI	63W	36V	1.75A	IP20	View
Mean Well IDLC-65-1750 Power Supply 65W 1750mA, Dimmable	63W	36V	1.75A	IP20	View
Mean Well IDLC-65-1400DA Power Supply 65W 1400mA, DALI	64.4W	46V	1.4A	IP20	View
Mean Well IDLC-65-1400 Power Supply 65W 1400mA, Dimmable	64.4W	46V	1.4A	IP20	View
Mean Well IDLC-65-1050DA Power Supply 65W 1050mA, DALI	65.1W	62V	1.05A	IP20	View
Mean Well IDLC-65-1050 Power Supply 65W 1050mA, Dimmable	65.1W	62V	1.05A	IP20	View
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Mean Well LDB-300L DC/DC LED Driver CC 300mA - Buck-boost

Overview

Features

Specifications

OUTPUT

INPUT

PWM DIMMING & ON/OFF CONTROL

PROTECTION

ENVIRONMENT

EMC

OTHERS

MODEL ENCODING

Technical drawings

Downloads

Datasheet1

Certificates3

Catalogues1

FAQ

Payment & Security

Other LDB Series Models

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

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