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DC 9V-120V to 12V 3A Step Down Buck Converter - High Voltage Power Module

Rating:
92%
₹222.00 ₹ 188.14 + 33.87 GST
In stock
SKU
PRO3570

1-3 Days Express Shipping in India Available

Bulk Pricing
QTYUnit Price(Inlc. GST)
25+ ₹217.56 ₹ 184.37 + 33.19 GST
50+ ₹213.12 ₹ 180.61 + 32.51 GST
75+ ₹208.68 ₹ 176.85 + 31.83 GST
100+ ₹204.24 ₹ 173.08 + 31.15 GST

Contact us for Higher Quantities.

Contact us for Higher Quantities

Industrial-grade buck converter with an ultra-wide 9V-120V input range. Delivers a stable 12V 3A output with high efficiency, perfect for E-Bike lighting, EV electronics, and industrial power systems.

Need to power 12V accessories from your high-voltage battery?

If you are building an E-Bike, an Electric Vehicle, or an industrial system with a 48V, 60V, 72V, or even 96V battery, you can't just plug in standard 12V LEDs or horns. The 12V 3A Output Buck Converter is the heavy-duty solution. It takes any input voltage from 9V all the way up to a massive 120V and steps it down to a rock-steady 12V DC. With a 3A output (36W), it has plenty of power for GPS trackers, lighting systems, and powerful horns.

The Probots Quality Advantage

High voltage is unforgiving—one spike can destroy your electronics. Our modules are Probots Lab Verified, tested to ensure they handle the high-voltage "ringing" common in motor-driven systems. We have optimised the thermal design with a large integrated heatsink to ensure this is Probots Thermal-Safe, maintaining 3A output even in hot Indian summers. Your module is protected by Probots Secure-Transit, shipped in specialised packaging to ensure the heavy components like the inductor never move during shipping.

Specifications

  • Input Voltage Range: 9V to 120V DC.

  • Output Voltage: Fixed 12V DC.

  • Output Current: 3A (Max).

  • Output Power: 36W.

  • Efficiency: Up to 92%.

  • Switching Frequency: 140kHz.

  • Protection: Short circuit protection, over-current protection, and over-temperature protection.

  • Operating Temperature: -40°C to +85°C.

  • Dimensions: 42mm x 30mm x 17mm.

Key Applications & Projects

  • E-Bike Lighting: Powering 12V LED headlights and tail-lights from 48V/60V/72V batteries.

  • EV Horns & GPS: Running standard car accessories on electric scooters or bikes.

  • Industrial Automation: Stepping down high-voltage DC bus lines for sensor and control logic.

  • Solar Power Systems: Regulating 24V or 48V solar arrays down to 12V for accessory use.

Project Evolution

  • Past Projects (Prerequisites): If you've used the LM2596 and realised its 40V limit is too low for your 60V battery, you’re ready for this.

  • Feature Upgrade: This module unlocks High-Voltage Resilience. You no longer need to worry about blowing up your regulator during a battery charge cycle where voltages can reach 84V or higher.

  • Effort/Requirements: Beginner. No adjustments needed—it is a fixed 12V output. Simply solder your input and output wires.

Virtual Technician & Wiring

⚠️ Safety Warning: You are working with high-voltage DC. Ensure your battery is disconnected before soldering. Use high-quality wire (minimum 20 AWG) for 3A loads.

Pin Label Connection Purpose
IN+ Battery Positive (9-120V) Power Input
IN- Battery Negative (GND) Input Ground
OUT+ Load Positive (12V) Regulated Output
OUT- Load Negative (GND) Output Ground

 

Package Includes: 1 x DC 9V-120V to 12V 3A Step Down Buck Converter

Frequently Asked Questions (FAQ)

  • Can I use this on a 72V E-Bike? Yes, it is perfect for 72V systems (which peak at ~84V).
  • Does the output voltage change with the input? No, the output remains a stable 12V even if the input fluctuates between 20V and 120V.
  • Does it need a separate heatsink? No, the included heatsink is sufficient for a 3A load.
  • Can I charge a phone with this? Yes, if you connect a 12V-to-USB adapter to the output.
  • What happens if I short the output? The module has built-in short circuit protection and will shut down to prevent damage.
  • Is it waterproof? No, it must be mounted inside a weatherproof enclosure for outdoor use.
  • Can I run a 12V motor with this? Yes, as long as the motor's peak current doesn't exceed 3A.
  • Is the output adjustable? No, this is a fixed 12V version for maximum stability.
  • What is the minimum input voltage? 9V, but for a stable 12V output, we recommend an input of at least 15V.
  • Can I use it on a 96V system? Yes, it handles up to 120V comfortably.
  • Does it get hot? It gets warm at 3A. Ensure there is some airflow in your enclosure.
  • Can I parallel two for 6A? Not recommended; use our PRO3571 10A version instead.
  • Will it drain my battery when not in use? The idle current is very low (~5mA), but we recommend a master switch for long-term storage.
  • Is it isolated? No, this is a common-ground buck converter.
  • What is the efficiency? Approximately 90-92% depending on the load.
  • Can I use it for 24V input? Yes, it works perfectly with 24V inputs.
  • Is it protected against reverse polarity? No; reversing the input wires will damage the module.
  • Can I use it as a LED driver? Yes, it is excellent for 12V LED strips.
  • What is the switching frequency? 140kHz, which minimizes electrical noise.
  • Is it verified for high-voltage peaks? Yes, we've tested this specifically for the voltage spikes found in EV systems.
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How to Order?

Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

  • Place an order online our website probots.co.in for quick and fast delivery
  • You can contact us by phone, Whatsapp or Mail for bulk enquiries, technical queries or order related enquiries before placing the order.
  • If you require a Quotation or PI for your company, send us a request mail and we will help you with it.

Delivery Time?

We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.

  • Dispatch Time: 1 Working Day for most orders
  • Guranteed Delivery Time: 1-3 days within India under Express Shipping

How to buy Electronics Components in Bangalore?

  • We offer store pickups for walkin customers in Bangalore. This is the fastest way to get electronic components in Bangalore.
  • Customers can visit our store to buy parts directly
  • Alternatively, you can place orders online and select Select Pickup as the delivery option and have your order picked up by Dunzo, Porter, etc. Please contact us for confirmation before arranging a pickup.

Need Help?

For order related queries contact -

Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.

We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.

Note: Business Orders are processed manually and usually take 1-3 days  to process compared to placing the order directly on our website. Please plan your purchases accordingly.

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