component
SD6303E30A
Public Made by Adomby adom
SHOUDING DC-DC Converters, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSD6303E30A
SHOUDING · DC-DC Converters · SOT-23
SD6303E30A from SHOUDING, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Power ground (电源地) of the converter; the datasheet gives no voltage or current limit for this pin. |
| 2 | LX | output | Switching signal output (开关信号输出端); the datasheet limits LX to a maximum current of 1000 mA and gives a maximum voltage of 7 V for the VOUT and VLX pins. |
| 3 | VOUT | input | Input voltage pin (输入电压) as classified in the pin table; the absolute maximum voltage for the VOUT and VLX pins is 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SHOUDING |
| Package | SOT-23 |
| Category | Power Management ICs |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum voltage at VOUT and VLX pins | VMAX | 7 | V | 5 | |||
| LX pin maximum current | ILX_MAX | 1000 | mA | 5 | |||
| EN pin voltage range | VMIN_MAX | -0.3 | V | 5 | |||
| Maximum power dissipation, SOT-23 package | PSOT-23 | 0.25 | W | 5 | |||
| Operating temperature range | TA | -20 | 85 | °C | 5 | ||
| Storage temperature range | TSTG | -40 | 125 | °C | 5 | ||
| Soldering temperature range | TSD | 230 | 240 | °C | time less than 30 s | 5 | |
| ESD voltage, human body model | VESD | 2000 | V | human body model | 5 | ||
| Output voltage accuracy | ΔVOUT | -2.5 | 2.5 | % | 6 | ||
| Current limit | ILIMIT | 600 | 800 | 1000 | mA | 6 | |
| Start-up voltage | VSTART | 0.8 | V | ILOAD=1mA; VIN from 0V to 2V | 6 | ||
| Hold voltage | VHOLD | 0.6 | V | ILOAD=1mA; VIN from 2V to 0V | 6 | ||
| No-load input current | IIN0 | 15 | uA | VIN=1.8V, VOUT=3.3V | 6 | ||
| Standby input current | IINQ | 1 | uA | no load, EN low | 6 | ||
| EN low voltage | 0.2 | V | 6 | ||||
| EN high input current | 0.1 | uA | 6 | ||||
| EN low input current | -0.1 | uA | 6 | ||||
| Maximum oscillation frequency | FMAX | 300 | KHz | 6 | |||
| Maximum duty cycle | DCOSC | 83 | % | 6 |
CAD (KiCad official)
- Symbol:
SD6303E30A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
sd6303e30a-etched.step/sd6303e30a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sd6303e30a.step/sd6303e30a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SHOUDING datasheet (13 pp, sha256
9d4ffb67082e3f06, retrieved 2026-10-25, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).