3.3V and 5.0V Dual-Output DC-DC Power Supply, 7-36V Input, 2x 1.5A Output
3.3V and 5.0V Dual-Output DC-DC Power Supply, 7-36V Input, 2x 1.5A Output - Image 2
3.3V and 5.0V Dual-Output DC-DC Power Supply, 7-36V Input, 2x 1.5A Output - Image 3
3.3V and 5.0V Dual-Output DC-DC Power Supply, 7-36V Input, 2x 1.5A Output - Image 4

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

Price range: $39.00 through $40.40

The pt1-OKI78SRE-5V-3V3 is a robust and stable power module providing four 3.3V outputs and 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. These provide far higher efficiency than any linear power regulator and, thus, do not require heat sinks.


Ships From: Netherlands
Supplier: Offerman Industries SKU: DC-DC Power Supply Categories: , , , , Tags: , , , , , More From:

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. These 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.

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)
  • the 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. 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

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Fast Delivery! We ship worldwide mainly via FedEx, UPS, DHL, and USPS because they are Fast, Reliable, and Easily Trackable. We process orders within 24 hours, and delivery may take 4 to 7 working days, depending on your location. We will email you the tracking number once it is shipped.

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Return Policy

5 Hours: Mistakes happen when ordering, so you have 5 hours to request a refund for any reason, including not wanting to pay the tariff. However, we cannot refund the Stripe Processing Fee, because they do not refund us. Click on the Tariff tab to read about newly imposed tariffs before purchasing.

All Sales Are Final: After 5 hours, we cannot cancel your order or issue a refund. Due to new tariffs, order cancellations require reverse tariff payments and multiple shipping fees, which are very costly and time-consuming. For technical problems, we will be happy to help you solve issues and provide a replacement if it is proven that the product has any manufacturing defects.

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Refund Policy: For technical problems, we will be happy to help you solve issues and even provide a replacement if it is proven that the product has any manufacturing defects. However, we cannot cancel your order or issue a refund.

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

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Tariff: We ship directly from the country where the product is manufactured, such as from China, Italy, Taiwan, and other countries, helping you avoid paying any tariffs or paying a lower tariff. Since we do not always ship products to you from the USA (except for those made in the USA), you will not be affected by the new tariffs imposed by the USA. Due to new tariff agreements between countries, not all products are subject to tariffs, as tariffs vary by country or product. For example, customers in the USA will pay a tariff on products imported from China, based on the tariff rate agreed between the USA and China. And so, if applicable, you, the customer, will pay the tariff within your respective country. The total amount of your order does not include a tariff, which you will pay before the delivery. We won’t refund you if you don’t pay the tariff.

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