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DS8242-33A3L
Public Made by Adomby adom
DSTECH Linear Voltage Regulators (LDO), SOT-89-3. 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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Contents
README
markdownDS8242-33A3L
DSTECH · Linear Voltage Regulators (LDO) · SOT-89-3
DS8242-33A3L from DSTECH, in a SOT-89-3. 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 | VOUT | power_out | Output of the regulator (fixed 3.3V for this variant), needs 1µF to 22µF effective output capacitance with at least 1mΩ ESR placed close to VOUT and GND, with 500mA output current and 700mA typical current limit. |
| 2 | GND | power_in | Ground pin, to which the input and output capacitor grounds should return with a short, wide copper trace. |
| 3 | VIN | power_in | Input of supply voltage, operating range 2.0V to 24V (absolute maximum 30V), with a 1µF or larger input capacitor placed close to VIN and GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DSTECH |
| Package | SOT-89-3 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VIN | 2 | 24 | V | VIN=15V, VEN=5V, TA=25°C | 5 | |
| DC Output Voltage Accuracy | -1 | 1 | % | ILOAD=0.1mA | 5 | ||
| Line Regulation | ΔLINE | 0.5 | % | ILOAD=1mA, 10V≤VIN≤20V | 5 | ||
| Load Regulation | ΔLOAD | 0.3 | % | 10mA≤ILOAD≤0.2A | 5 | ||
| Output Current Limit | ILIM | 501 | 700 | mA | VOUT=0 | 5 | |
| Input Voltage | VIN | 2 | 24 | V | 4 | ||
| Junction Temperature Range | -40 | 125 | °C | 4 | |||
| Ambient Temperature Range | -40 | 85 | °C | 4 | |||
| VIN to GND | VIN | -0.3 | 30 | V | 4 | ||
| VOUT to GND | VOUT | -0.3 | 6 | V | 4 | ||
| VOUT to VIN | -28 | 0.3 | V | 4 | |||
| Lead Temperature (Soldering, 10 sec.) | 260 | °C | 10 sec | 4 | |||
| Junction Temperature | 150 | °C | 4 | ||||
| Storage Temperature Range | -40 | 150 | °C | 4 | |||
| ESD Susceptibility HBM | 2 | KV | HBM | 4 | |||
| ESD Susceptibility MM | 200 | V | MM | 4 | |||
| Package Thermal Resistance SOT-89-3 | θJA | 120 | °C/W | Measured at TA=25°C on a DSTECH EVB board | 4 | ||
| Dropout Voltage | VDROP_3.3V | 0.42 | V | ILOAD=100mA, VOUT=3.3V | 5 | ||
| Ground Current | IQ | 1.5 | μA | ILOAD=0mA | 5 | ||
| Thermal Shutdown Temperature | TSD | 160 | °C | ILOAD=10mA | 5 | ||
| Thermal Shutdown Hysteresis | ΔTSD | 15 | °C | 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 DS8242 ground pin using as wide and as short of a copper trace as is practical. | 8 |
CAD (KiCad official)
- Symbol:
DS8242-33A3L - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
ds8242-33a3l-etched.step/ds8242-33a3l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds8242-33a3l.step/ds8242-33a3l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DSTECH datasheet (12 pp, sha256
02f10bfeea1c3ede, 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).