4 layers79.7 × 53.1 mm
4 layers98.8 × 51.1 mm
LDO Stable JAFWAK
admiralento/loopgaingangBringup for custom LDO design in TSMC180
- Size
- 98.8 × 51.1 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 87
- Nets
- 51
- Pads
- 315
- Tracks, vias
- 490, 974
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 29 Sep 2026
- Updated
- 7 Nov 2026
Overview
LDO Stable JAFWAK is an open-source printed circuit board by admiralento, from the admiralento/loopgaingang repository on GitHub. It is a 4-layer board of 98.8 × 51.1 mm with 87 parts on 51 nets, routed with 490 tracks and 974 vias.
It is built around the BUF634AIDRB, FXLP34P5X and RC0805FR-0710KL, with the FDV305N, CRCW08050000Z0EAHP and RQ73C2A124RBTD among its other parts. Its parts include 23 resistors, 18 capacitors, 14 connectors, 6 ICs and 5 transistors.
Main components
12
BUF634AIDRB
SON-8(3x3)-18V~-2.25V、2.25V~18V -40℃~+125℃ 1 175uV/℃ 210MHz 250mA 2uA 3.4nV/√Hz@1kHz 3.75V/ns 4.5V~36V 65mV 8.5mA ESD protection SON-8(3x3) Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
FXLP34P5X
SC-70-5-40℃~+85℃ 1 1 1V~3.6V 1V~3.6V CMOS Unidirectional SC-70-5 Translators, Level Shifters ROHSonsemiTranslators, Level Shifters
RC0805FR-0710KL
UncategorisedUnknown maker
FDV305N
SOT-23-55℃~+150℃ 1 N-channel 1.5V 1.5nC@4.5V 109pF 14pF 20V 300mΩ@2.5V 30pF 350mW 900mA N-Channel SOT-23 MOSFETs ROHSonsemiMOSFETs
CRCW08050000Z0EAHP
0805-55℃~+155℃ 0Ω 150V 500mW Thick Film Resistor 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountRQ73C2A124RBTD
0805-55℃~+155℃ 100V 124Ω 200mW Thin Film Resistor ±0.1% ±10ppm/℃ 0805 Chip Resistor - Surface Mount ROHSTE ConnectivityChip Resistor - Surface Mount
PA2512FKE7W0R1E
2512Chip Resistor - Surface MountYAGEO
EEU-FC1V101B
插件,D8xL11.5mmAluminum Electrolytic Capacitors - LeadedPanasonicPEC02SAAN
TH-2PTH-2P SMT ROHSJLCPCB AssemblyUncategorised
CT3151SP-0
-- Banana Connectors / Alligator Clips ROHSCal TestBanana Connectors / Alligator ClipsRQ73C2A15R4BTDF
0805-55℃~+155℃ 15.4Ω 200mW Thin Film Resistor ±0.1% ±10ppm/℃ 0805 Chip Resistor - Surface Mount ROHSTE ConnectivityChip Resistor - Surface MountRQ73C2A249RBTD
0805-55℃~+155℃ 200mW 249Ω Thin Film Resistor ±0.1% ±10ppm/℃ 0805 Chip Resistor - Surface Mount ROHSTE ConnectivityChip Resistor - Surface Mount
Parts
87| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R5, R8, R9, R10, R11, R12 |
| 5 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8, C11, C14, C15, C16 |
| 5 | FDV305N | Package_TO_SOT_SMD:TSOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4, C17, C18, C19 |
| 4 | GND | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP2, TP8, TP11, TP12 |
| 4 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2, H3, H4 |
| 3 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R6, R7 |
| 3 | 125 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18, R19 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R21, R22, R23 |
| 3 | 1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C6, C10 |
| 2 | 0.1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C13 |
| 2 | 100m | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R1, R13 |
| 2 | 100uF | TPS7A7001_Evaluation_Board_footprint_lib:CAPPRD350W60D800H1150 | C3, C12 |
| 2 | BUF634AIDR | TPS7A7001_Evaluation_Board_footprint_lib:SOIC127P599X175-8N | U2, U4 |
| 2 | BW_ADJ | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP3 |
| 2 | FXLP34 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U5, U6 |
| 2 | GND | TPS7A7001_Evaluation_Board_footprint_lib:CALTEST_CT3151-2 | J11, J12 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 15.4 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | 250 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R20 |
| 1 | 31.6 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16 |
| 1 | 47 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 1 | AD_PINS | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J13 |
| 1 | EN_AIN | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP6 |
| 1 | EN_AIN_SEL | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J6 |
| 1 | EN_FG | TPS7A7001_Evaluation_Board_footprint_lib:SAMTEC_SMA-J-P-H-ST-TH1 | J2 |
| 1 | EN_SEL | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J8 |
| 1 | INA | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP9 |
| 1 | INB | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP10 |
| 1 | LOGO | TPS7A7001_Evaluation_Board_footprint_lib:Stanford_logo | G*** |
| 1 | Load Cell and Buffer | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | OUTA | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP4 |
| 1 | OUTB | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP5 |
| 1 | PEC03SAAN | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP4 |
| 1 | SU272AFJK_LDO | Package_DFN_QFN:QFN-32-1EP_7x7mm_P0.65mm_EP5.4x5.4mm_ThermalVias | U1 |
| 1 | TEMP | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP7 |
| 1 | TMP235A2DBZR | TPS7A7001_Evaluation_Board_footprint_lib:DBZ0003A-IPC_A | U3 |
| 1 | VDD | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP1 |
| 1 | VDD_SEL | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J1 |
| 1 | VIN | TPS7A7001_Evaluation_Board_footprint_lib:SAMTEC_SMA-J-P-H-ST-TH1 | J14 |
| 1 | VIN_DC | TPS7A7001_Evaluation_Board_footprint_lib:CALTEST_CT3151-2 | J7 |
| 1 | VIN_FG | TPS7A7001_Evaluation_Board_footprint_lib:SAMTEC_SMA-J-P-H-ST-TH1 | J3 |
| 1 | VOUT | TPS7A7001_Evaluation_Board_footprint_lib:CALTEST_CT3151-2 | J5 |
| 1 | VOUT_BUFF | TPS7A7001_Evaluation_Board_footprint_lib:SAMTEC_SMA-J-P-H-ST-TH1 | J9 |
| 1 | VREF | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | VREF | TPS7A7001_Evaluation_Board_footprint_lib:KEYSTONE_5016 | TP3 |
| 1 | VS_BUFF | TPS7A7001_Evaluation_Board_footprint_lib:CALTEST_CT3151-2 | J4 |
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Questions
How big is the LDO Stable JAFWAK PCB?
It measures 98.8 × 51.1 mm and has 4 copper layers, 1.6 mm thick.
What parts does the LDO Stable JAFWAK use?
87 parts, built around the BUF634AIDRB, FXLP34P5X, RC0805FR-0710KL and FDV305N. 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 Stable JAFWAK KiCad files?
From the admiralento/loopgaingang repository on GitHub, at the commit this page was made from: the board is LDO_Stable_JAFWAK/LDO_Stable_JAFWAK.kicad_pcb and its schematic LDO_Stable_JAFWAK/LDO_Stable_JAFWAK.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LDO Stable JAFWAK design in my own project?
Its repository states no licence, so its author keeps all rights: ask admiralento before reusing the design.