2 layers40 × 40 mm
2 layers40 × 40 mm
LDO
Ken-2511/LDOTwo KiCad 10 projects, stacked on the same 40x40 mm footprint:
- Size
- 40 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 16
- Pads
- 85
- Tracks, vias
- 158, 26
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Oct 2026
- Updated
- 7 Nov 2026
Overview
LDO is an open-source printed circuit board by Ken-2511, from the Ken-2511/LDO repository on GitHub. It is a 2-layer board of 40 × 40 mm with 26 parts on 16 nets, routed with 158 tracks and 26 vias.
It is built around the DAC60502DRXR, INA226AIDGSR and LT3042EMSE#PBF, with the CL31A476MPHNNNE, RL1206FR-070R5L and CL21A106KAYNNNE among its other parts. Its parts include 8 capacitors, 5 resistors, 3 ICs and 2 connectors.
Main components
10
DAC60502DRXR
WSON-10(2.5x2.5)-40℃~+125℃ 12 15uA 1LSB 2 2.7V~5.5V 5us I2C、SPI Power-on reset、Power-down mode、Integrated modulator、Soft reset、Built-in reference source Voltage Buffer WSON-10(2.5x2.5) Digital to Analog Converters (DAC) ROHSTexas InstrumentsDigital To Analog Converters (DAC)
INA226AIDGSR
VSSOP-10-40℃~+125℃ 0.1uV/℃ 0V~36V 100pA 140dB 2.5uV 2.7V~5.5V 330uA High-side detection、Low-side detection、Bidirectional detection、Power monitoring、Digital output interface、Programmable threshold alarm、Enable/shutdown function ±40V VSSOP-10 Current Sense Amplifiers ROHSTexas InstrumentsCurrent Sense Amplifiers
LT3042EMSE#PBF
MSOP-10-40℃~+125℃ 0.8uVrms 0V~15V 1 200mA 20V 350mV@(200mA) 56dB@(10MHz)、117dB@(120Hz) Adjustable Positive Under Voltage Lockout、PG Pin、Enable、Short Circuit Protection MSOP-10-EP Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAnalog DevicesVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CL31A476MPHNNNE
120610V 47uF X5R ±20% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
RL1206FR-070R5L
1206-55℃~+155℃ 250mW 500mΩ Thick Film Resistor ±1% ±300ppm/℃ 1206 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
CL21A106KAYNNNE
080510uF 25V X5R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
RT0603BRD071KL
0603-55℃~+155℃ 100mW 1kΩ 75V Thin Film Resistor ±0.1% ±25ppm/℃ 0603 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
SR0805FR-7W4R7L
0805-55℃~+155℃ 250mW 4.7Ω 500V Thick Film Resistor ±1% ±200ppm/℃ 0805 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountCL21B475KAFNNNE
080525V 4.7uF X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
PZ254R-11-02P
弯插,P=2.54mm-40℃~+105℃ 1 1x2P 2.54mm 2.5mm 250V 2P 3A 6mm Black Brass Pin Header Right Angle 弯插,P=2.54mm Pin Headers ROHSXFCNPin Headers
README
README.mdStackable BLE low-noise power supply (PoC)
Two KiCad 10 projects, stacked on the same 40x40 mm footprint:
controller/: Seeed XIAO nRF52840 board at the bottom of the stack. It supplies 5V (from USB) and 3.3V, and carries the I2C pull-ups.ldo/: LDO board, one LT3042 channel set by a DAC60502 and read back by an INA226. Up to 4 boards stack on the controller, each on its own I2C address.
The boards connect through a 2x5 stacking header (J1) at the same position on every board: pins 1-2 +5V, pin 3 +3V3, pin 5 SDA, pin 7 SCL, pins 4, 6, 8, 9, 10 GND.
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C7 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C8 |
| 2 | 47uF 10V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C3 |
| 1 | 0.5 1% | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 1 | 1k 0.1% | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 1k 1% | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 4.7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 4.7uF 10V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | DAC 0x48 / INA 0x40 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | DAC 0x49 / INA 0x41 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | DAC 0x4A / INA 0x42 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | DAC 0x4B / INA 0x43 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | DAC60502 | Package_SON:Texas_DRX_WSON-10_2.5x2.5mm_P0.5mm | U2 |
| 1 | INA226 | Package_SO:TSSOP-10_3x3mm_P0.5mm | U3 |
| 1 | LT3042xMSE | Package_SO:MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm | U1 |
| 1 | Stack_2x05 | Connector_PinSocket_2.54mm:PinSocket_2x05_P2.54mm_Vertical | J1 |
| 1 | VOUT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J3 |
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Questions
How big is the LDO PCB?
It measures 40 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LDO use?
26 parts, built around the DAC60502DRXR, INA226AIDGSR, LT3042EMSE#PBF and CL31A476MPHNNNE. 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 LDO KiCad files?
From the Ken-2511/LDO repository on GitHub, at the commit this page was made from: the board is ldo/LDO.kicad_pcb and its schematic controller/controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LDO design in my own project?
Its repository states no licence, so its author keeps all rights: ask Ken-2511 before reusing the design.