

LA0W5
500 mW Linear Amplifier for HF and VHF
- Size
- 60 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 80
- Nets
- 20
- Pads
- 170
- Tracks, vias
- 203, 10
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 15 Nov 2015
- Updated
- 15 Nov 2015
Overview
LA0W5 is an open-source printed circuit board by etherkit, from the etherkit/LA0W5 repository on GitHub. It is a 2-layer board of 60 × 50 mm with 80 parts on 20 nets, routed with 203 tracks and 10 vias.
It is built around the LP2985-33DBV and MMBT4403. Its parts include 11 capacitors, 11 resistors, 5 connectors, 3 transistors and 2 ICs. It belongs with the audio and music boards of this library.
Main components
2LP2985-33DBV
SOT-23-5-40℃~+125℃@(Tj) 1 150mA 16V 3.3V 30uVrms 45dB@(1kHz) 575mV@(150mA) 850uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Noise bypass terminal Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsMMBT4403
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200MHz 300mW 400mV 40V 5V 600mA PNP SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdLA0W5 500 mW Linear Amplifier for HF and VHF
Parts
80| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | VAL** | EtherkitKicadLibrary:VIA-05 | VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA, VIA +15 |
| 4 | 10n | EtherkitKicadLibrary:C_0805_HandSoldering | C1, C3, C6, C10 |
| 4 | P*** | EtherkitKicadLibrary:MOUNTINGHOLE-4MM | 1PIN, 1PIN, 1PIN, 1PIN |
| 3 | 100n | EtherkitKicadLibrary:C_0805_HandSoldering | C2, C7, C8 |
| 3 | 22k | EtherkitKicadLibrary:R_0805_HandSoldering | R1, R3, R5 |
| 2 | 1u | EtherkitKicadLibrary:C_0805_HandSoldering | C4, C5 |
| 2 | 4.7u | EtherkitKicadLibrary:C_0805_HandSoldering | C9, C11 |
| 2 | R | EtherkitKicadLibrary:R_0805_HandSoldering | R2, R6 |
| 2 | SMA-F | EtherkitKicadLibrary:SMA-ENDLAUNCH | J4, J7 |
| 1 | 0 | EtherkitKicadLibrary:R_0805_HandSoldering | R4 |
| 1 | 0.5 1% | EtherkitKicadLibrary:R_0805_HandSoldering | R10 |
| 1 | 10 | EtherkitKicadLibrary:R_0805_HandSoldering | R7 |
| 1 | 10k | EtherkitKicadLibrary:TC33X-2 | R11 |
| 1 | 2.1 mm Barrel Jack | EtherkitKicadLibrary:DCPOWER-KOBICONN-163-7620-E | J1 |
| 1 | 2N7002 | EtherkitKicadLibrary:SOT23-2N7002 | Q1 |
| 1 | 3.3k | EtherkitKicadLibrary:R_0805_HandSoldering | R8 |
| 1 | 56 | EtherkitKicadLibrary:R_0805_HandSoldering | R9 |
| 1 | BIAS V | Measurement_Points:Measurement_Point_Square-TH_Small | TP2 |
| 1 | CONN_01X04 | EtherkitKicadLibrary:Pin_Header_Straight_1x04 | J3 |
| 1 | FB2402-43 5T | EtherkitKicadLibrary:BN2402 | L1 |
| 1 | GATE BIAS | EtherkitKicadLibrary:SOLDER_JUMPER | JP2 |
| 1 | GND | Measurement_Points:Measurement_Point_Square-TH_Small | TP1 |
| 1 | INA193 | EtherkitKicadLibrary:SOT23-5 | U1 |
| 1 | LOGO | EtherkitKicadLibrary:OSHWLogo4mm | G*** |
| 1 | LOGO | EtherkitKicadLibrary:SHIBE | G*** |
| 1 | LP2985-3.3 | EtherkitKicadLibrary:SOT23-5 | U2 |
| 1 | LPFModule | EtherkitKicadLibrary:LPFModule | M1 |
| 1 | MMBT4403 | EtherkitKicadLibrary:SOT23-MMBT440X | Q2 |
| 1 | PA I | Measurement_Points:Measurement_Point_Square-TH_Small | TP3 |
| 1 | RD00HVS1 | EtherkitKicadLibrary:RD00HVS1 | Q3 |
| 1 | TX ON | EtherkitKicadLibrary:SOLDER_JUMPER | JP1 |
| 1 | VDD | EtherkitKicadLibrary:Pin_Header_Straight_1x02 | J2 |
| 1 | Val** | EtherkitKicadLibrary:EtherkitLogoSmall | Ref** |
The 77 most common of 80 parts.
Questions
How big is the LA0W5 PCB?
It measures 60 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LA0W5 use?
80 parts, built around the LP2985-33DBV and MMBT4403. 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 LA0W5 KiCad files?
From the etherkit/LA0W5 repository on GitHub, at the commit this page was made from: the board is pcb/LA0W5.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the LA0W5 design in my own project?
Its repository states no licence, so its author keeps all rights: ask etherkit before reusing the design.
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