component
LTP3559-33RXT4
Public Made by Adomby adom
Linearin 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
markdownLTP3559-33RXT4
Linearin · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
LTP3559-33RXT4 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 | OUT | power_out | Output pin of the LDO; absolute maximum rating for OUT to GND is -0.3 to 6 V. |
| 2 | GND | power_in | Ground pin, the reference for the input and output. |
| 3 | IN | power_in | Supply input pin; absolute maximum rating for IN to GND is -0.3 to 48 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Linearin |
| 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 |
|---|---|---|---|---|---|---|---|
| Line Regulation | RegLINE | 0.01 | 0.04 | %/V | 2.5 V ≤ VIN ≤ 36 V, IOUT = 10 mA | 5 | |
| Load Regulation | RegLOAD | 40 | mV | 1 mA ≤ IOUT ≤ 300 mA, VIN = VOUT + 2 V | 5 | ||
| Maximum Output Current | IOUT | 350 | mA | VIN = VOUT +2 V | 5 | ||
| Quiescent Current | IQ | 2.5 | 4 | μA | IOUT = 0 mA | 5 | |
| Standby Current | IQ_OFF | 0.1 | 1 | μA | VEN = 0 V, TA = 25°C | 5 | |
| EN Pin Threshold Voltage (high) | VENH | 1.2 | V | EN Input Voltage “H” | 5 | ||
| EN Pin Threshold Voltage (low) | VENL | 0.4 | V | EN Input Voltage “L” | 5 | ||
| EN Pin Current | IEN | 1 | μA | VEN = 0 to 36V | 5 | ||
| Power Supply Rejection Ratio | PSRR | 60 | dB | VIN = VOUT + 1 V, IOUT = 20 mA, f = 1 kHz | 5 | ||
| Output Noise Voltage | eN | 100 | μVrms | VIN = VOUT + 2 V, IOUT = 1 mA, f = 10 Hz to 100 KHz, (VOUT = 3 V) COUT = 1 μF | 5 | ||
| Thermal Shutdown Temperature | TSD | 155 | °C | Temperature Increasing from TA=+25°C | 5 | ||
| Thermal Shutdown Hysteresis | TSDH | 20 | °C | Temperature Falling From TSD | 5 | ||
| Output voltage accuracy (worst case) | -2 | 2 | % | over all load, line, process, and temperature variations | 1 | ||
| Operating Input Voltage | VIN | 45 | V | 5 | |||
| Input capacitor (recommended) | CIN | 1 | 10 | μF | ceramic capacitor between VIN and GND; may be increased without limit | 4 | |
| Output capacitor (recommended) | COUT | 1 | 10 | μF | ceramic output capacitor; temperature characteristics X7R or X5R | 4 | |
| Output capacitor ESR (recommended) | ESR | 5 | 100 | mΩ | equivalent series resistance of output capacitor | 4 | |
| IN pin to GND pin | -0.3 | 48 | V | 4 | |||
| OUT pin to GND pin | -0.3 | 6 | V | 4 | |||
| Operating Junction Temperature | -40 | 125 | °C | 4 | |||
| Storage Temperature | -65 | 150 | °C | 4 | |||
| Lead Temperature (Soldering, 10 sec) | 300 | °C | Soldering, 10 sec | 4 | |||
| ESD (HBM) | -2000 | 2000 | V | ESDA/JEDEC JS-001-2017 | 4 | ||
| Thermal Resistance (Junction to Ambient), SOT89-3 | 135 | °C/W | Junction to ambient, SOT89-3 package | 4 |
CAD (KiCad official)
- Symbol:
LTP3559-33RXT4 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
ltp3559-33rxt4-etched.step/ltp3559-33rxt4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltp3559-33rxt4.step/ltp3559-33rxt4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Linearin datasheet (12 pp, sha256
4ce104044a30ec68, 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).