component
LTP3558-50XT4
Public Made by Adomby adom
Linearin 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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README
markdownLTP3558-50XT4
Linearin · Linear Voltage Regulators (LDO) · SOT-89-3
LTP3558-50XT4 from Linearin, 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 | GND | power_in | Ground reference pin for the regulator. |
| 2 | IN | power_in | Supply input pin that must be closely decoupled to GND with a 1μF or greater ceramic capacitor. |
| 3 | OUT | power_out | Regulated output pin that must be bypassed to ground with a 1μF or greater ceramic capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Linearin |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage Operation Range | VIN | 36 | V | 5 | |||
| Dropout Voltage | VDROP | 720 | mV | VOUT= 5V, IOUT = 150mA | 5 | ||
| Dropout Voltage | VDROP | 420 | mV | VOUT= 5V, IOUT = 100mA | 5 | ||
| DC Supply Quiescent Current | IQ | 1.5 | 3 | µA | 5 | ||
| Output Voltage Line Regulation | RegLINE | 0.01 | 0.04 | %/V | VIN = VOUT +1V to 30V, IOUT = 10mA | 5 | |
| Output Voltage Load Regulation | RegLOAD | 5 | 20 | mV | IOUT from 1mA to 150mA, VIN=VOUT+2V | 5 | |
| Output Voltage Load Regulation | RegLOAD | 25 | 60 | mV | IOUT from 1mA to 150mA, VIN=10V | 5 | |
| Maximum Output Current | IOUT | 200 | mA | VIN = VOUT +1V | 5 | ||
| Short Current Protection | ISHORT | 100 | mA | OUT short to GND | 5 | ||
| Output Noise | eN | 90 | µVRMS | 10Hz to 100kHz, IOUT = 30mA | 5 | ||
| IN pin to GND pin voltage | -0.3 | 40 | V | 4 | |||
| OUT pin to GND pin voltage | -0.3 | 6 | V | 4 | |||
| Operating Junction Temperature | -40 | 125 | °C | 4 | |||
| Storage Temperature | -65 | 150 | °C | 4 | |||
| Lead Temperature (Soldering) | 300 | °C | 10 sec | 4 | |||
| ESD (HBM mode) | -2000 | 2000 | V | ESDA/JEDEC JS-001-2017 | 4 | ||
| Thermal Resistance (Junction to Ambient), SOT-89 | 135 | °C/W | Junction to ambient, SOT-89 package | 4 | |||
| Output Capacitance (recommended) | COUT | 1 | 10 | µF | Ceramic, X7R or X5R temperature characteristic | 4 | |
| Output Capacitor ESR (recommended) | ESR | 5 | 100 | mΩ | 4 | ||
| Input Capacitance (recommended) | CIN | 1 | 10 | µF | Ceramic, between VIN and GND | 3 |
CAD (KiCad official)
- Symbol:
LTP3558-50XT4 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
ltp3558-50xt4-etched.step/ltp3558-50xt4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltp3558-50xt4.step/ltp3558-50xt4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Linearin datasheet (10 pp, sha256
bdf40379d2112217, 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).