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
Brand: Offerman Industries SKU: DC-DC Power Supply Categories: , , , , Tags: , , , , ,

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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Shipping costs

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

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