3.3V and 5.0V Dual-Output DC-DC Power Supply, 7-36V Input, 2x 1.5A Output

$39.00$40.40

The pt1-OKI78SRE-5V-3V3 is a robust and stable power module providing four 3.3V outputs and another four 5.0V outputs for each of the two voltages at a maximum of 1.5A. The board is built around two of Murata’s fixed-output DC-DC switching (buck) regulators from the OKI-78SR series, providing a far higher efficiency than any linear power regulator, and thus not requiring any heat sinks.

3.3V and 5.0V Dual-Output DC-DC Power Supply, 7-36V Input, 2x 1.5A Output

The pt1-OKI78SRE-5V-3V3 is a robust and stable power module providing four 3.3V outputs and another 5.0V outputs for each of the two voltages at a maximum of 1.5A. The board is built around two of Murata’s fixed-output DC-DC switching (buck) regulators from the OKI-78SR series, providing a far higher efficiency than any linear power regulator and thus not requiring heat sinks.

The input voltage can be anywhere between 7V and 36V, supplied through the screw connector or the barrel jack connector. Both power circuits feature their fuse (protecting the circuits against sustained input reversal) and an indicator LED. The power outputs are protected against short circuits and over-temperature. The converters will automatically restart once the short circuit condition is removed.

Features

  • 7-36V ultra-wide input, power provided through screw or barrel jack connector
  • four 3.3V outputs at 1.5A max
  • four 5.0V outputs at 1.5A max
  • built around Murata OKI-78SR fixed-output DC-DC switching (buck) regulators
  • very high efficiency, not requiring any heat sinks
  • each power circuit has its fuse
  • each power circuit has its indicator LED
  • protected against short circuits and over-temperature
  • automatic restart after a short circuit
  • all based on robust through-hole components
  • the board is standing on four brass standoffs, allowing you to place it on a working table or integrate it into a larger assembly
  • board size: 46.25×58.50mm; bolts: 40.25×52.50mm (M2.5)
  • high-quality PCBs designed in KiCad and produced by Aisler (Germany), PCBWay (China), and OSH Park (USA)
  • board comes fully assembled and tested
  • power cables available

Usage

I created this board to have an efficient and stable power supply for circuits combining 3.3V and 5.0V devices. For example, ATmega MCUs  can only run at higher clock speeds when supplied with 5V. And the ICs I use to drive VFD display tubes (i.e. Microchip HV518, HV5812 and HV6810) run only at 5V, while the NodeMCU/Lua boards I use to connect to the Internet can only run at 3.3V. This power supply (combined with interface components such as the PCA9306 voltage-level translator for I2C) allows me to mix and match ICs with different voltage requirements easily.

Additional information

Options

2 pcs power cords, 4 pcs power cords, 8 pcs power cords, no additional options

Product Datasheet and Manual

If applicable, the Product Documentation such as Datasheet, Brochure, Reference Materials, CAD Design, STP Files, Manuals, and Tutorials will be available for download upon purchase from the My Account as needed. On the checkout page, please create an account to download product-related files upon purchase. You won’t be able to download otherwise.


Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Adrian Offerman has an M.Sc. degree in computer engineering from Delft University of Technology, where he specialized in computer architecture and digital techniques and was trained as a processor designer. Furthermore, in 2010, he completed an M.Sc. degree in Psychology at Leiden University, where he specialized in cognitive psychology and clinical psychology.

Next to his technical writing, Adrian has been working as a consultant and engineer, advising on technology, business, markets, and innovation. Furthermore, he has worked as a Linux system manager, network manager, webmaster, software developer and architect, and technology advisor. He also had a web hosting company specializing in more complex, non-commodity services for almost ten years.

Offerman Industries is his latest undertaking in engineering, creating art and design based on old-school electronics.

Shipping Policy

Please check your SPAM folder to ensure you accept emails from OzRobotics.com to receive your tracking number and download product-related files.

WE SHIP WORLDWIDE: We primarily ship via FedEx, UPS, DHL, and USPS because they’re reliable, fast, and easily trackable. We usually ship within two to three business days after the full payment. Standard delivery generally occurs within 5 to 7 business days after the shipping date. However, the delivery may take about 7 to 10 business days, depending on the shipping destination, logistics, weather conditions, product weight, size, or shipping company distribution structures.

SHIPPING COSTS: For some industrial products, e.g., heavy wheels, CNC machines, etc., the shipping cost is calculated based on the product weight, not quantity. To benefit from lower shipping costs for orders with multiple items, please contact us at sales@ozrobotics.com. Our shipping rates are listed clearly on each product page under the SHIPPING tab. Additionally, to see the shipping cost for your country, add the item to the Shopping Cart; you will see the shipping cost based on your Country and Location.

CUSTOMS and TARIFFS: While not all products require a tariff, some products may require a minimal tariff if applicable in your country. The total amount for your order does not include a customs fee/tariff. The United States Customs and Border Protection (CBP) deducts import tax, or customs duty, on goods valued over $800 USD from customers located in the US. A tariff belongs to the buyer when applicable. Why don't we add tariffs to the product's retail price? - If all countries deducted the same tariff amount, we would have added the tariff amount to the product price. However, we do not do that because each country charges a different amount, while some do not even charge. Therefore, we can't add any tariff to the product's retail pricing. Oz Robotics, manufacturing partners, or Suppliers are not responsible for tariffs. Please check the "Made In:" and "Brand:" labels on the product page to see the product's origin. The total amount for your order does not include any duties, import taxes, customs fees, and GST/VAT. The buyer must pay all import duties. If you choose not to pay the tariff and parcel returns, there will not be any refund. Please click here to see more on Tariffs.

Return Policy

WITHIN 5 HOURS: Mistakes happen when ordering, so you have 5 hours to request an order cancellation, but we cannot refund the PayPal or Stripe Processing fee because they do not refund us.

AFTER 5 HOURS: After 5 hours, your order has either been shipped, prepared to ship, or custom-made. If you still want to cancel your order after 5 Hours, we will deduct 30% of the total for restocking + PayPal or Stripe processing fees and the Return Shipping cost for unopened packages.

AFTER RECEIVING YOUR ORDER: If you decide not to keep your order after it arrives, we will deduct 80% of the total if we find it refundable after a review. Please see our Refund and Replacement Policy

EXCHANGE POLICY: Oz Robotics wants you to be happy with your new purchase. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. Once you use the product, our supplier(s) and we have the right not to issue a refund. Still, we will offer an exchange for wrongly purchased items or products with serious and irreversible defects or technical problem(s). The buyer will pay the shipping fee for wrongly purchased products or similar issues. If the product you purchased is defective, please email us at support@ozrobotics.com with photos or a video of the defective parts to evaluate before you send it. Click HERE for more on Refund and Replacement Policy

REFUND POLICY: Oz Robotics accepts refunds on a minimal basis unless there is a manufacturing defect. For electronic items, returns are only accepted on devices with serious and irreversible problems; meanwhile, the customer must apply for the returns within seven days of delivery. Before a refund acceptance, please include images or a video and any other proof of the defect. However, we abide by the exchange policy of our suppliers because we do not manufacture these products. For more info please visit Refund and Replacement Policy.

Other than our supplier's default policy, once a return is agreed upon, you can ship your defective item to the provided return address that you should receive from us first. Please ship the order in original packaging with all the accessories and additional parts. If the Required Parts are not sent back, they will be billed for or expected to be shipped later. And only once all items have arrived will our staff check the returned product for testing. Include in your package a signed letter stating the reason for your return, the original receipt, proof of defect, images, a video, etc. It will help us to speed up the process on your behalf.

The purchaser (customer/buyer) is responsible for all shipping costs when returning an item. However, upon receiving the returned order, we will assess the product. If it is determined that there is, in fact, a manufacturing defect, then we will refund the shipping costs as well as repair or replace or refund the full amount to the purchaser if the product is not fixable.

If you wish to return an unused product, please do so within seven days from the ship date for a refund on the purchase price minus shipping and handling. Refunds will be credited to the original credit card used for payment 24-48 HOURS after receiving the product back. We will charge a 80% of the total for restocking + PayPal or Stripe processing fees and the Return Shipping cost for unopened packages.

Once your return is received and inspected, and if you agree to a refund, refunds will be credited to the original credit card used for payment in 24-48 hours. Please note that we will charge an 80% restocking fee once you return a product without any defect.

Once your refund is processed, PayPal will return the money to the card used. It may take at least five business days (depending on the bank and credit company) before your refund is posted in your bank account and statements. Contact Us if you have not received your refund after five business days.

Do not return your product to our New York office. For any exchange or refunds, please email us first at support@ozrobotics.com for us to provide you with the steps that need to be followed. Any product you return must be in the same condition you received and returned in the original packaging without being used. Please keep the original receipt. More on Refund and Replacement Policy.

Shipping costs

Region / Country State Postcode Cost
Netherlands Any Any $8.00
Belgium Any Any $13.00
France Any Any $13.00
Sweden Any Any $13.00
Austria Any Any $13.00
Germany Any Any $13.00
Spain Any Any $13.00
Italy Any Any $13.00
Luxembourg Any Any $13.00
Denmark Any Any $13.00
Portugal Any Any $15.00
Ireland Any Any $15.00
United Kingdom (UK) Any Any $15.00
Europe Any Any $16.00
Everywhere else Any Any $26.00