component
DS8571-33S5
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.
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DS8571-33S5
DSTECH · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
DS8571-33S5 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 supply voltage; the recommended operating input range is 2.3V to 6V, with a 1µF or larger input capacitor placed close to the VIN and GND pins. |
| 2 | GND | power_in | Ground reference for the regulator; the input and output capacitor ground connections must return to this pin through a short, wide copper trace. |
| 3 | EN | input | Enable control input that shuts the regulator down when pulled low; the datasheet gives VIH of 1.0V (rising) and VIL of 0.4V (falling), with absolute maximum rating of -0.3V to 6V on EN to GND. |
| 4 | NC | unconnected | No internal connection on the non-SNS SOT-23-5 variant; leave unconnected. |
| 5 | VOUT | power_out | Regulated output (3.3V for the DS8571-33 variant), stable with a ceramic or tantalum output capacitor between 1µF and 22µF with a minimum 1mΩ ESR, placed close to the VOUT and GND pins. |
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 | 2.3 | 6 | V | 7 | ||
| DC Output Voltage Accuracy | -2 | 2 | % | ILOAD =0.1mA | 7 | ||
| Output Current Limit | ILIM | 301 | 550 | mA | VOUT = 0V | 7 | |
| Shutdown Ground Current | ISD | 0.1 | 0.5 | μA | VEN = 0V, VOUT = 0V | 7 | |
| EN Input Current | IEN | 10 | 100 | nA | VEN = 5V | 7 | |
| VIN to GND | -0.3 | 7 | V | 6 | |||
| VOUT, EN to GND | -0.3 | 6 | V | 6 | |||
| VOUT to VIN | -6 | 0.3 | V | 6 | |||
| Storage Temperature Range | -60 | 150 | °C | 6 | |||
| Lead Temperature | 260 | °C | Soldering, 10 sec. | 6 | |||
| Junction Temperature | 150 | °C | 6 | ||||
| ESD Susceptibility HBM | 2 | kV | HBM | 6 | |||
| ESD Susceptibility MM | 200 | V | MM | 6 | |||
| ESD Susceptibility CDM | 2 | kV | CDM | 6 | |||
| Input Voltage | VIN | 2.3 | 6 | V | 6 | ||
| Junction Temperature Range | -40 | 125 | °C | 6 | |||
| Ambient Temperature Range | -40 | 85 | °C | 6 | |||
| Dropout Voltage (VOUT ≥ 3V) | VDROP_3V | 0.06 | V | ILOAD =100mA (Note 3); VOUT ≥ 3V | 7 | ||
| Ground Current | IQ | 30 | μA | ILOAD = 0mA | 7 | ||
| Enable Threshold Voltage (EN Rising) | VIH | 1 | V | EN Rising | 7 | ||
| Enable Threshold Voltage (EN Falling) | VIL | 0.4 | V | EN Falling | 7 | ||
| Line Regulation | ΔLINE | 0.3 | % | ILOAD =30mA, 2.5V ≤ VIN ≤ 5.5V or (VOUT + 0.2V) ≤ VIN ≤ 5.5V | 7 | ||
| Load Line | ΔLOAD | 20 | mV | 1mA ≤ ILOAD ≤ 300mA | 7 | ||
| Thermal Shutdown Temperature | TSD | 160 | °C | ILOAD =10mA | 7 | ||
| Thermal Shutdown Hysteresis | ΔTSD | 20 | °C | 7 | |||
| Discharge Resistance | RDC | 30 | Ω | EN = 0V, VOUT = 0.1V | 7 | ||
| Package Thermal Resistance SOT-23-5 (junction-to-ambient) | θJA | 220 | °C/W | Measured at TA = 25°C on DSTECH EVB board (Note 2) | 6 | ||
| Maximum Power Dissipation SOT-23-5 (datasheet calculation) | PD | 0.45 | W | TA=25°C, DS-Tech PCB; (125°C − 25°C) / 220°C/W | 12 |
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 DS8571 ground pin using as wide and as short of a copper trace as is practical. | 12 |
CAD (KiCad official)
- Symbol:
DS8571-33S5 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
ds8571-33s5-etched.step/ds8571-33s5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds8571-33s5.step/ds8571-33s5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DSTECH datasheet (18 pp, sha256
481282d70f89eeec, retrieved 2026-10-18, tier: lcsc) - 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).
# DS8571-33S5
**DSTECH** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
DS8571-33S5 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 supply voltage; the recommended operating input range is 2.3V to 6V, with a 1µF or larger input capacitor placed close to the VIN and GND pins. |
| 2 | GND | power_in | Ground reference for the regulator; the input and output capacitor ground connections must return to this pin through a short, wide copper trace. |
| 3 | EN | input | Enable control input that shuts the regulator down when pulled low; the datasheet gives VIH of 1.0V (rising) and VIL of 0.4V (falling), with absolute maximum rating of -0.3V to 6V on EN to GND. |
| 4 | NC | unconnected | No internal connection on the non-SNS SOT-23-5 variant; leave unconnected. |
| 5 | VOUT | power_out | Regulated output (3.3V for the DS8571-33 variant), stable with a ceramic or tantalum output capacitor between 1µF and 22µF with a minimum 1mΩ ESR, placed close to the VOUT and GND pins. |
## 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 | 2.3 | | 6 | V | | 7 |
| DC Output Voltage Accuracy | | -2 | | 2 | % | ILOAD =0.1mA | 7 |
| Output Current Limit | ILIM | 301 | 550 | | mA | VOUT = 0V | 7 |
| Shutdown Ground Current | ISD | | 0.1 | 0.5 | μA | VEN = 0V, VOUT = 0V | 7 |
| EN Input Current | IEN | | 10 | 100 | nA | VEN = 5V | 7 |
| VIN to GND | | -0.3 | | 7 | V | | 6 |
| VOUT, EN to GND | | -0.3 | | 6 | V | | 6 |
| VOUT to VIN | | -6 | | 0.3 | V | | 6 |
| Storage Temperature Range | | -60 | | 150 | °C | | 6 |
| Lead Temperature | | | | 260 | °C | Soldering, 10 sec. | 6 |
| Junction Temperature | | | | 150 | °C | | 6 |
| ESD Susceptibility HBM | | | | 2 | kV | HBM | 6 |
| ESD Susceptibility MM | | | | 200 | V | MM | 6 |
| ESD Susceptibility CDM | | | | 2 | kV | CDM | 6 |
| Input Voltage | VIN | 2.3 | | 6 | V | | 6 |
| Junction Temperature Range | | -40 | | 125 | °C | | 6 |
| Ambient Temperature Range | | -40 | | 85 | °C | | 6 |
| Dropout Voltage (VOUT ≥ 3V) | VDROP_3V | | 0.06 | | V | ILOAD =100mA (Note 3); VOUT ≥ 3V | 7 |
| Ground Current | IQ | | 30 | | μA | ILOAD = 0mA | 7 |
| Enable Threshold Voltage (EN Rising) | VIH | | 1 | | V | EN Rising | 7 |
| Enable Threshold Voltage (EN Falling) | VIL | | 0.4 | | V | EN Falling | 7 |
| Line Regulation | ΔLINE | | 0.3 | | % | ILOAD =30mA, 2.5V ≤ VIN ≤ 5.5V or (VOUT + 0.2V) ≤ VIN ≤ 5.5V | 7 |
| Load Line | ΔLOAD | | 20 | | mV | 1mA ≤ ILOAD ≤ 300mA | 7 |
| Thermal Shutdown Temperature | TSD | | 160 | | °C | ILOAD =10mA | 7 |
| Thermal Shutdown Hysteresis | ΔTSD | | 20 | | °C | | 7 |
| Discharge Resistance | RDC | | 30 | | Ω | EN = 0V, VOUT = 0.1V | 7 |
| Package Thermal Resistance SOT-23-5 (junction-to-ambient) | θJA | | 220 | | °C/W | Measured at TA = 25°C on DSTECH EVB board (Note 2) | 6 |
| Maximum Power Dissipation SOT-23-5 (datasheet calculation) | PD | | | 0.45 | W | TA=25°C, DS-Tech PCB; (125°C − 25°C) / 220°C/W | 12 |
## 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 DS8571 ground pin using as wide and as short of a copper trace as is practical. | 12 |
## CAD (KiCad official)
- Symbol: `DS8571-33S5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `ds8571-33s5-etched.step` / `ds8571-33s5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds8571-33s5.step` / `ds8571-33s5.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [DSTECH datasheet](docs/ds8571-33s5-datasheet.pdf) (18 pp, sha256 `481282d70f89eeec`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/ds8571-33s5-datasheet.pdf)