component
DS8401N-18S5
Public Made by Adomby adom
DSTECH Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownDS8401N-18S5
DSTECH · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
DS8401N-18S5 from DSTECH, in a SOT-23-5. 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 | VIN | power_in | Input of supply voltage, operating range 2.5V to 36V (absolute max 40V), with a 1µF or larger capacitor placed close to VIN and GND. |
| 2 | GND | power_in | Ground. |
| 3 | EN | input | Enable control input; pulling it low shuts down the regulator (VIH 1.1V rising, VIL 0.4V falling, absolute max 40V). |
| 4 | SNS | input | Sense of output voltage for the DS8401N variant, connected to VOUT or to a resistor divider for adjustable output (absolute max 6V). |
| 5 | VOUT | power_out | Output of the regulator, needs 1µF to 22µF effective output capacitance, up to 200mA load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DSTECH |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VIN | 2.5 | 36 | V | VIN=15V, VEN=5V, TA=25C | 6 | |
| DC Output Voltage Accuracy | -1 | 1 | % | ILOAD=0.1mA | 6 | ||
| Shutdown Ground Current | ISD | 0.1 | 0.5 | μA | VEN=0V, VOUT=0V | 6 | |
| EN Input Current | IEN | 10 | 100 | nA | VEN=24V | 6 | |
| Output Current Limit | ILIM | 201 | 350 | mA | VOUT=0 | 6 | |
| SNS Input Current | ISNS | 0.6 | μA | SNS=VOUT, VOUT≤5V | 6 | ||
| Dropout Voltage | VDROP_1.8V | 0.46 | V | ILOAD=100mA, VOUT=1.8V | 6 | ||
| Ground Current | IQ | 2 | μA | ILOAD=0mA, VOUT≤5V | 6 | ||
| Enable Threshold Voltage High | VIH | 1.1 | V | EN Rising | 6 | ||
| Enable Threshold Voltage Low | VIL | 0.4 | V | EN Falling | 6 | ||
| Line Regulation | ΔLINE | 0.8 | % | ILOAD=1mA, 10V≤VIN≤20V | 6 | ||
| Load Regulation | ΔLOAD | 0.5 | % | 10mA≤ILOAD≤0.1A | 6 | ||
| Power Supply Rejection Ratio | PSRR | 70 | dB | VOUT=3.3V, ILOAD=30mA, VIN=12V, f=1KHz | 6 | ||
| Thermal Shutdown Temperature | TSD | 160 | °C | ILOAD=10mA | 6 | ||
| Thermal Shutdown Hysteresis | ΔTSD | 30 | °C | ILOAD=10mA | 6 | ||
| Input Voltage | VIN | 2.5 | 36 | V | 5 | ||
| Junction Temperature Range | TJ | -40 | 125 | °C | 5 | ||
| Ambient Temperature Range | TA | -40 | 85 | °C | 5 | ||
| VIN, EN to GND | -0.3 | 40 | V | 5 | |||
| SNS to GND | -0.3 | 6 | V | 5 | |||
| VOUT to GND | -0.3 | 14 | V | 5 | |||
| VOUT to VIN | -40 | 0.3 | V | 5 | |||
| Lead Temperature | 260 | °C | Soldering, 10 sec. | 5 | |||
| Junction Temperature | TJ | 150 | °C | 5 | |||
| Storage Temperature Range | -40 | 150 | °C | 5 | |||
| ESD Susceptibility HBM | 2 | KV | HBM | 5 | |||
| ESD Susceptibility MM | 200 | V | MM | 5 | |||
| Package Thermal Resistance | θJA | 220 | °C/W | SOT-23-5, TA=25°C on DSTECH EVB board | 5 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | must be back to the DS8401 ground pin using as wide and as short of a copper trace as is practical. | 10 |
CAD (KiCad official)
- Symbol:
DS8401N-18S5 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
ds8401n-18s5-etched.step/ds8401n-18s5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds8401n-18s5.step/ds8401n-18s5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DSTECH datasheet (12 pp, sha256
e8b24822ab19bcca, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).