Lopo DCDC Testing
About the Lopo DCDC Testing PCB
Lopo DCDC Testing is an open source PCB design by 74th, published on GitHub under the MIT license. It is a 2-layer board measuring 34.3 × 39.4 mm, with 37 components from 27 distinct parts.
Other key parts include the MT2492 and MCP73831-2-OT. By type, the board carries 10 connectors, 8 resistors, 6 capacitors, 5 diodes, 3 transistors and 2 ICs.
It belongs with the power & battery designs in this gallery.
From the project
74th のPCBデータを公開しているプロジェクト
リチウムイオン電池充電回路と、降圧型 DCDC コンバータを理解するための実験 PCB
Main components on the Lopo DCDC Testing
Lopo DCDC Testing bill of materials (BOM)
37 components, 27 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MT2492 | Package_SOT-23-6 | U1 |
| 1 | MCP73831-2-OT | Package_SOT-23-5 | U2 |
| 3 | IRLML6402 | Package_SOT-23 | Q1, Q2, Q3 |
| 1 | USB2.0-C_SMT | Connector_USB-C-Receptacle_SMT_12-Pin_Simple | J1 |
| 1 | VUSB PH-2P | Connector_PH-2.0_TH-Vertical_2Pin | J2 |
| 1 | VUSB TH-2P | PinOut_Pin_2_GND | J3 |
| 1 | 3V3 PH-2P | Connector_PH-2.0_TH-Vertical_2Pin | J4 |
| 1 | 3V3 TH-2P | PinOut_Pin_2_GND | J5 |
| 1 | VDD PH-2P | Connector_PH-2.0_TH-Vertical_2Pin | J6 |
| 1 | VDD TH-2P | PinOut_Pin_2_GND | J7 |
| 2 | VBAT PH-2P | Connector_PH-2.0_TH-Vertical_2Pin | J8, J9 |
| 1 | VBAT TH-2P | PinOut_Pin_2_GND | J10 |
| 1 | VUSB Conn | SolderJumper-2 | JP1 |
| 1 | VBAT SW | Switch_Slide_SK-12D02-G020 | SW1 |
| 3 | PMEG2010ER,115 | Package_SOD123W | D1, D3, D5 |
| 1 | Blue | LED_0805_2012 | D2 |
| 1 | Yellow | LED_0805_2012 | D4 |
| 1 | 4.7u | Capacitor_0805_2012 | L1 |
| 2 | 22u | Capacitor_0805_2012 | C1, C3 |
| 1 | 22n | Capacitor_0805_2012 | C2 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 4.7u | Capacitor_0805_2012 | C4, C6 |
| 1 | 22p | Capacitor_0805_2012 | C5 |
| 2 | 5.1k | Register_0805_2012 | R1, R2 |
| 1 | 1k | Register_0805_2012 | R3 |
| 1 | 33k | Register_0805_2012 | R4 |
| 3 | 10k | Register_0805_2012 | R5, R7, R8 |
| 1 | 2k | Register_0805_2012 | R6 |
Lopo DCDC Testing design files
The KiCad project lives in the 74th/74th-oshw-projects repository on GitHub; these links point at the commit this page was built from.
Lopo DCDC Testing: common questions
How big is the Lopo DCDC Testing PCB?
The Lopo DCDC Testing measures 34.3 × 39.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Lopo DCDC Testing?
37 components, from 27 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 Lopo DCDC Testing design files?
From the 74th/74th-oshw-projects repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Lopo DCDC Testing design in my own project?
Yes, under the terms of its MIT license, which 74th chose for the repository.
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