8–40V to 13.8V 25A/30A Buck-Boost Stabilizer
- Input VoltageDC 8V – 40V
- Output VoltageDC 13.8V Nominal
- Rated Current25A / 30A (Up to 414W)
- Efficiency / Rating>94% · IP68 Waterproof
Standard Catalog
Commercial & Heavy-Duty Voltage Stabilizers
Synchronous 4-switch topology with 94%+ peak efficiency, full potting for IP68 environmental protection, and low electromagnetic noise suitable for automotive, boat, solar, and sensitive industrial loads.
5–36V to 12V 1A/2A/3A Compact Step Up/Down Module
- Input VoltageDC 5V – 36V Wide
- Output VoltageDC 12V Regulated
- Rated Current1A / 2A / 3A (36W Max)
- ProtectionOver-V / Short Circuit
8–40V to 12V 1A/3A/6A Car Voltage Stabilizer
- Input VoltageDC 8V – 40V
- Output VoltageDC 12V Stable
- Rated Current1A / 3A / 6A (72W Max)
- CertificationsCE · RoHS Certified
8–40V to 12V 10A 120W DC-DC Boost-Buck Converter
- Input VoltageDC 8V – 40V
- Output VoltageDC 12V ±1%
- Rated Current10A Continuous
- HousingDie-cast Aluminum Shell
8–40V to 12V 15A/20A DC Voltage Stabilizer
- Input VoltageDC 8V – 40V (12V/24V)
- Output VoltageDC 12V Regulated
- Rated Current15A / 20A (Up to 240W)
- CoolingNatural Convection
8–40V to 12V 25A/30A 360W High-Power Module
- Input VoltageDC 8V – 40V
- Output VoltageDC 12V Regulated
- Rated Current25A / 30A Peak
- ProtectionThermal & Over-Current
9–40V to 19V 5A/10A Waterproof Laptop Supply
- Input VoltageDC 9V – 40V
- Output VoltageDC 19V Regulated
- Rated Current5A / 10A (Up to 190W)
- ApplicationsIn-Vehicle PC / Telecom
9–40V to 24V 6A 144W DC-DC Voltage Stabilizer
- Input VoltageDC 9V – 40V (12V/24V)
- Output VoltageDC 24V Regulated
- Rated Current6A Continuous
- ProtectionFull Epoxied IP68
18–40V to 24V 25A/30A 720W High-Power Converter
- Input VoltageDC 18V – 40V
- Output VoltageDC 24V Heavy Duty
- Rated Current25A / 30A (720W Max)
- ComplianceCE / RoHS / ISO 9001
8–40V to 13.8V 5A/10A/15A/20A Marine Regulator
- Input VoltageDC 8V – 40V
- Output VoltageDC 13.8V Stable Float
- Rated Current5A – 20A Options
- EnclosureAnti-Corrosion Aluminum
8–36V to 12V 6A/10A/15A Vehicle Voltage Stabilizer
- Input VoltageDC 8V – 36V
- Output VoltageDC 12V Tight Tol.
- Rated Current6A / 10A / 15A
- ReliabilityMTBF > 100,000 Hours
8–36V to 12V 1A–4A 48W LED & Sensor Regulator
- Input VoltageDC 8V – 36V
- Output VoltageDC 12V (48W Max)
- Ripple & Noise< 50mVp-p Low Noise
- Operating Temp-40°C to +85°C
Engineering Excellence
Why Buck-Boost Architecture is Vital for DC Systems
In mobile and off-grid power environments, battery terminal voltage constantly fluctuates: a nominal 12V lead-acid or LiFePO4 battery may slump to 8.5V during starter engine cranking and jump to 14.6V under active alternator bulk charging. Standard buck or boost converters fail when the input crosses the target output voltage.
Shenzhen Eltrum Electronic Co., Ltd. implements synchronous four-switch H-bridge and non-inverting buck-boost topologies to ensure non-stop, seamless voltage regulation without brownouts or over-voltage spikes.
- Seamless Mode Switching: Automatical transition between step-down, buck-boost, and step-up modes without output disruption.
- High Conversion Efficiency: Low-RDS(on) MOSFETs and custom flat-wire inductors ensure conversion efficiency up to 96%.
- Transient & Surge Suppression: Built-in TVS protection clamps high-voltage transients from vehicle load dumps and inductive kickback.
- Thermal Stability: Solid epoxy potting inside heavy die-cast aluminum heat-dissipating enclosures eliminates fan failures.
| Series | Input Range | Target Output | Peak Power |
|---|---|---|---|
| WG-12-BB | 8V – 40V DC | 12.0V ±1.5% | 72W – 360W |
| WG-138-BB | 8V – 40V DC | 13.8V ±1.0% | 70W – 414W |
| WG-19-BB | 9V – 40V DC | 19.0V ±1.0% | 95W – 285W |
| WG-24-BB | 9V – 40V DC | 24.0V ±1.0% | 144W – 720W |
| WG-28-BB | 9V – 40V DC | 28.0V ±1.5% | 420W – 560W |
| WG-48-BB | 10V – 60V DC | 48.0V ±1.0% | Up to 1500W |
SMT & Assembly Production Lines
100% Full-Load Burn-In & QC Testing
Direct Factory Manufacturer
Manufactured by Shenzhen Eltrum Electronic Co., Ltd.
Founded in 2015, Shenzhen Eltrum Electronic Co., Ltd. specializes in R&D, manufacturing, and global export of high-reliability DC-DC conversion products and lithium battery charging modules. All products are designed and assembled in our Shenzhen facility under an ISO 9001 certified quality management framework.
We serve over 130 countries worldwide, supplying global OEM and ODM brand partners across North America, Europe, Australia, and Asia. Our factory premises have undergone strict onsite inspection by third-party verification companies, verifying true legal, financial, and operational credentials.
500+Standard Models
100%Burn-in Inspected
5 UnitsLow Sample MOQ
Compliance: CE / RoHS / ISO 9001 Inquire Now
Procurement Guidance
Frequently Asked Questions for B2B Buyers
What is the difference between a buck-boost converter and a standard buck regulator?
A standard buck converter can only step down voltage (input must stay higher than output). When input drops below the target (e.g. battery drain), a buck converter loses regulation. A buck-boost converter steps voltage both UP and DOWN, delivering a continuously stable rail across the entire battery discharge and charge cycle.
What is your minimum order quantity (MOQ) and production lead time?
For standard buck-boost catalog models, the sample MOQ is 5 units to facilitate engineering bench tests. Standard batch orders are typically dispatched within 7–15 working days. Custom OEM/ODM runs are scheduled based on specification approvals.
Can Shenzhen Eltrum Electronic Co., Ltd. provide custom enclosures and connectors?
Yes. We regularly supply custom cable harnesses, Anderson power poles, waterproof Delphi/Deutsch automotive connectors, custom potting hardness, and laser-engraved buyer branding for qualified volume orders.
How does the company guarantee batch quality and durability?
Every single converter unit undergoes automatic SMT inspection, component verification, high-temperature full-load burn-in aging for 4–8 hours, and final automated parameter testing before packaging.
Request Technical Datasheets or OEM Customization
Need a custom voltage ratio, RS485 digital monitoring, or wholesale pricing? Our Shenzhen engineering team will assist your application requirements directly.