1.5V switcher test

oresat·oresat-gps-hardware·MicroSemi_FPGA_Dev_Board/kicad_board_design/A3P250_Dev_Board/1.5V_switcher_test.kicad_pcb

1.5V switcher test PCB layout, top view — open source board by oresat

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About the 1.5V switcher test PCB

1.5V switcher test is an open source PCB design by oresat, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 46.7 × 46.7 mm, with 39 components from 22 distinct parts.

Other key parts include the A3P250, LTC3561A and LT1962-3.3. By type, the board carries 21 capacitors, 6 resistors, 4 connectors, 3 ICs, 2 diodes and 2 inductors.

It belongs with the rf & radio designs in this gallery.

From the project

Hardware for OreSat's SDR GPS receive and other SDR GPS projects

This is the repo for our OreSat GPS Card. For software, see the oresat-gps-software repo.

A SkyTraq Orion-B16 GNSS module, a GNSS receiver module meant for university CubeSat use. An Analog Devices MAX2771 SDR GNSS receiver IC that is read by the Octavo OSD335x-SM processor's PRU and then parsed using the GNSS-SDR project software.

TRL 6-7 ish. Flown, but not yet demonstrated to work in space.

Main components on the 1.5V switcher test

A3P250 LTC3561A LT1962-3.3

1.5V switcher test bill of materials (BOM)

39 components, 22 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	A3P250	LQFP-100_14x14mm_P0.5mm	U1
1	LTC3561A	DFN-8-1EP_3x3mm_P0.5mm_EP1.66x2.38mm	U2
1	LT1962-3.3	MSOP-8_3x3mm_P0.65mm	U3
1	ASE-25MHz	Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm	X1
4	Conn_01x20	PinHeader_1x20_P2.00mm_Vertical	J1, J2, J3, J4
1	LED_ALT	LED_0805_2012Metric	D1
1	LED_ALT	LED_0603_1608Metric	D2
1	2.2uH	L_Wuerth_MAPI-2512	L1
1	6.8uH	L_1206_3216Metric	L2
8	0.01uF	C_0603_1608Metric	C1, C3, C7, C13, C15, C17, C19, C21
1	0.33uF	C_0603_1608Metric	C2
1	680pF	C_0603_1608Metric	C4
1	1uF	C_0603_1608Metric	C5
1	22uF	C_1210_3225Metric	C6
3	10uF	C_0603_1608Metric	C8, C10, C11
1	22pF	C_0603_1608Metric	C9
5	.1uF	C_0402_1005Metric	C12, C14, C16, C18, C20
2	200	R_0805_2012Metric	R1, R6
1	16.9K	R_0603_1608Metric	R2
1	549K	R_0603_1608Metric	R3

Show 2 more

Qty	Part	Footprint	Refs
1	287K	R_0603_1608Metric	R4
1	249K	R_0603_1608Metric	R5

1.5V switcher test design files

The KiCad project lives in the oresat/oresat-gps-hardware repository on GitHub; these links point at the commit this page was built from.

1.5V switcher test: common questions

How big is the 1.5V switcher test PCB?

The 1.5V switcher test measures 46.7 × 46.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the 1.5V switcher test?

39 components, from 22 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 1.5V switcher test design files?

From the oresat/oresat-gps-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the 1.5V switcher test design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which oresat chose for the repository.

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