Adjustable Output DC-DC Power Supply with Ultra-Wide Input and 3A Output

$37.00$37.75

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, which provide far higher efficiency than any linear power regulator and thus do not require 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.

0.75-4.5V Adjustable Output DC-DC Power Supply, 9-32V Ultra-Wide Input, 3A Output

The pt1-OKIT3W32-4V5max is a robust and stable power supply providing four outputs, adjustable from 0.75V to 4.5V, at a maximum of 3A. The board is built around a Murata OKI-T/3-W32 DC-DC switching (buck) converter, which does not require a heat sink. The input voltage can be anywhere between 9V and 32V, supplied through the screw connector or the barrel jack connector.

The module features an onboard fuse, protecting the circuit against sustained input reversal. The power output is also protected against short circuits and over temperature. The converter will automatically restart after the short circuit condition is removed. The circuit has added some translator logic to provide a (positive) logic ENABLE signal (e.g., 3.3/5V).

Features

  • 9-32V ultra-wide input, power provided through screw or barrel jack connector
  • four outputs, adjustable from 0.75v to 4.5V, at a maximum of 3A in total
  • built around Murata OKI-T/3-W32 DC-DC switching (buck) converter
  • very high efficiency, not requiring any heat sinks
  • protected against sustained input reversal through an onboard fuse
  • protected against short circuits and over-temperature
  • automatic restart after a short circuit
  • (positive) logic ENABLE signal (e.g., 3.3/5V)
  • all based on robust through-hole components (except for the OKI-T/3-W3 converter)
  • 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: 52.75×34.00mm; bolts: 46.75×28.00mm (M2.5)
  • high-quality PCBs designed in KiCad and produced by Aisler (Germany), PCBWay (China), and OSH Park (USA)
  • the board comes fully assembled and tested
  • power cables available

NOTE: the total output voltage range runs from about 0.75V to 4.5V; if you need a more limited range (to protect the hardware you will be connecting to this module), select one of the other (more restricted) ranges

NOTE: the module requires a different fuse depending on the input voltage (2A for ~12V input, 1A for ~24V input); make sure you select the suitable module for your application

NOTE: the module will only start when a high logic ENABLE signal is provided; if you need a module that is always on, select the type without the ENABLE signal logic

Usage

I’ve created this board as a low-voltage power supply for my LED applications (often based on the TI TLC5947 constant current LED driver) and to feed the filaments of the VFD display tubes I use in my projects.

Additional information

Options

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

Specifications

~12V input voltage, ~24V input voltage

Variant

ENABLE signal, no ENABLE signal (always-on)

Version

~1.5-4.0V (full range) output

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.

Shipping Policy

FAST DELIVERY! We ship worldwide via FedEx, UPS, DHL, and USPS because they’re Fast, Reliable, Affordable, and Easily Trackable. We process orders in 24 hours; delivery may take 4 to 7 days.

TARIFF: The tariff will only affect customers in the country where they reside and order. Please check the "Ships From" label on this product page to see which country we will be shipping this product from, and if any tariff is required in your country, since each country has different tariff agreements. While not all products require a tariff, some may require a minimal or no tariff if applicable in your country. The total amount of your order does not include a tariff. When applicable, the buyer will pay the tariff within their respective country. Please enter a reachable phone number during checkout so the Shipping Company can contact you to pay the tariff once your parcel arrives at your destination.

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 a tariff to the product's retail pricing. Oz Robotics' manufacturing partners, or suppliers are not responsible for tariffs. Please check the "Ships From:" label on the product page to see the product's origin. The total amount for your order does not include a tariff. The customer must pay the tariff. We will not cancel your order or refund you if you do not pay the tariff. Click for More on Tariff.

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. For lower shipping costs for orders with multiple items, please email us at sales@ozrobotics.com before you buy. We show shipping rates on the product page under the SHIPPING tab. To see the shipping cost for your country, click add to cart on the product page.

PRODUCT DATASHEET AND MANUAL: If applicable, the Product Documentation, such as the 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.

##################################

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 + the shipping fee 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 our manufacturers' exchange policy because we do not manufacture these products; our manufacturers do. Once you use the product, we cannot issue a refund. But we will offer an exchange for a wrongly purchased product with irreversible defects or technical problems. The customer will pay the shipping fee for a wrongly purchased product 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 so we can evaluate it 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. For more info please visit Refund and Replacement Policy.

Once we agreed on a return, you can ship your defective item to the provided address, which you should receive from us first. Please ship the order in its 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. We will check the product for testing once all items have arrived. In your package, include a signed letter stating the reason for the product return, the original receipt, proof of defect, images, a video, etc. It will help us to speed up the process for you.

When returning the item, the customer is responsible for the shipping cost. However, we will assess the product, and if it is determined that there is a manufacturing defect and the product is not fixable, we will refund the shipping cost, repair, replace, or refund the full amount to the customer.

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