4 layers51 × 77 mm
2 layers
Echolet PCB
Pegoku/Echolet- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 137
- Pads
- 165
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 23 Aug 2026
- Updated
- 24 Aug 2026
Overview
Echolet PCB is an open-source printed circuit board by Pegoku, from the Pegoku/Echolet repository on GitHub. It is a 2-layer board with 10 parts on 137 nets.
It is built around the TPS62840YBGR, BQ25185DLHR and MAX17048G+T10, with the B3U-3000P among its other parts. Its parts include 5 ICs, 4 switches and 1 connector. It belongs with the STM32 boards of this library.
Main components
4
TPS62840YBGR
DSBGA-6(1x1.5)-40℃~+125℃@(TJ) 1 1.8MHz 1.8V~3.3V 1.8V~6.5V 60nA 750mA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Output discharge、Cycle-by-cycle current limiting Step-down type Yes DSBGA-6(1x1.5) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BQ25185DLHR
WSON-10-EP(2.2x2)-40℃~+125℃ 1 1A 2.2V 3V~18V 4.4V 4uA Charging IC Lithium Battery、LiFePO4 Battery Support WSON-10-EP(2.2x2) Battery Management ROHSTexas InstrumentsBattery Management
MAX17048G+T10
DFN-8-EP(2x2)-40℃~+85℃ 1 2.5V~4.5V 3uA I2C Lithium Battery Not supported Not supported DFN-8-EP(2x2) Battery Management ROHSMaxim Integrated (Analog Devices)Battery Management
B3U-3000P
SMD,3x2.5mm-25℃~+70℃ 1.2mm 1.59N 12V 2.5mm 3mm 50mA Black IP40 Rectangular Button SMD(SMT) Tab SPST Surface Mount, Right Angle Without Bracket SMD,3x2.5mm Tactile Switches ROHSOmronTactile Switches
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | B3U-3000P | easyeda2kicad:KEY-SMD_B3U-3000P | SW1, SW2, SW3, SW4 |
| 1 | BQ25185DLHR | easyeda2kicad:WSON-10_L2.2-W2.0-P0.40-BL-EP_TI_DLH0010A | U2 |
| 1 | MAX17048G+T10 | easyeda2kicad:TDFN-8_L2.0-W2.0-P0.50-BL-EP1.2 | U3 |
| 1 | Micro_SD_Card_Det_Hirose_DM3AT | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J1 |
| 1 | Microchip_BM83 | RF_Module:Microchip_BM83 | U6 |
| 1 | STM32U545CEUxQ | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U5 |
| 1 | TPS62840YBGR | easyeda2kicad:DSBGA-6_L1.4-W1.0-R2-C3-P0.40-BL | U1 |
Questions
What parts does the Echolet PCB use?
10 parts, built around the TPS62840YBGR, BQ25185DLHR, MAX17048G+T10 and B3U-3000P. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Echolet PCB KiCad files?
From the Pegoku/Echolet repository on GitHub, at the commit this page was made from: the board is PCB/Echolet-PCB/Echolet-PCB.kicad_pcb and its schematic PCB/Echolet-PCB/Echolet-PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Echolet PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask Pegoku before reusing the design.
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