component
MST5A50BTS-C
Public Made by Adomby adom
MST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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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README
markdownMST5A50BTS-C
MST · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
MST5A50BTS-C from MST, 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 | Regulated output pin for the fixed 3.3 V or 5.0 V output (±2%), rated for up to 100 mA, with VOUT to GND limited to -0.3 V to 7 V. |
| 2 | GND | power_in | Ground pin, to which the input and output capacitors return; wide copper traces are required for both VIN and GND in the PCB layout. |
| 3 | VIN | power_in | Input pin with an operating range of 4 V to 100 V and a VIN to GND absolute maximum of -0.3 V to 115 V, decoupled with a 1 µF ceramic capacitor placed close to the device (add R1 >1 Ω at the input when VIN ≥ 48 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MST |
| Package | SOT-89-3 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Tolerance (fixed 3.3V and 5.0V options) | -2 | 2 | % | 1 | |||
| Operating input voltage | VIN | 4 | 100 | V | 4 | ||
| Absolute max: VIN to GND | -0.3 | 115 | V | 3 | |||
| Absolute max: VOUT to GND | -0.3 | 7 | V | 3 | |||
| Absolute max: VIN to VOUT | -0.3 | 110 | V | 3 | |||
| Operating temperature range | -40 | 125 | ℃ | 3 | |||
| Storage temperature | -40 | 150 | ℃ | 3 | |||
| ESD Human Body Model (HBM) | VESD | 4 | KV | 3 | |||
| ESD Charged Device Model (CDM) | VESD | 200 | V | 3 | |||
| Power dissipation, SOT89 | 900 | mW | 3 | ||||
| Recommended minimum output capacitance (ceramic, X5R or X7R) | COUT | 1 | μF | ceramic capacitor recommended, temperature characteristic X5R or X7R | 5 | ||
| Recommended input capacitance (ceramic) | CIN | 1 | μF | ceramic capacitor recommended between VIN and GND; may be increased without limit | 5 | ||
| Junction temperature during normal operation | TJ | 150 | °C | during normal operation | 6 | ||
| Quiescent current | IGND | 4.5 | uA | VIN=12V, No load | 4 | ||
| Output current | IOUT_MAX | 100 | mA | VIN=VOUTNOM+1V | 4 | ||
| Dropout voltage at 10mA | VDROP | 120 | mV | IOUT=10mA , VIN=VOUTNOM-0.1V | 4 | ||
| Dropout voltage at 100mA | VDROP | 830 | mV | IOUT=100mA , VIN=VOUTNOM-0.1V | 4 | ||
| Load regulation | ΔVOUT/ΔIOUT | 0.1 | mV/mA | VIN=7V, 1mA≤IOUT≤100mA | 4 | ||
| Line regulation | ΔVOUT/ΔVIN | 0.1 | mV/V | IOUT=1mA, 6V≤VIN≤1000V | 4 | ||
| Current limit | ILIMIT | 240 | mA | 4 | |||
| Short circuit current | ISHORT | 80 | mA | VIN=12V | 4 | ||
| Thermal shutdown temperature (shutdown) | TSHDN | 145 | ℃ | Shutdown, temperature increasing | 4 | ||
| Thermal shutdown temperature (reset) | TSHDN | 120 | ℃ | Reset, temperature decreasing | 4 | ||
| Thermal resistance, junction to ambient, SOT89 | 130 | ℃/W | 3 |
CAD (KiCad official)
- Symbol:
MST5A50BTS-C - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
mst5a50bts-c-etched.step/mst5a50bts-c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mst5a50bts-c.step/mst5a50bts-c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MST datasheet (12 pp, sha256
5778322a73bfdd9a, retrieved 2026-10-17, 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).