component
LW5533A23D
Public Made by Adomby adom
Lewa Micro Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. 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
markdownLW5533A23D
Lewa Micro · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L
LW5533A23D from Lewa Micro, in a SOT-23-3L. 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; the datasheet lists it as ground and recommends a large-area GND plane for thermal performance only on the DFN/SOT89/TO-252 thermal-pad packages, not on SOT23-3L. |
| 2 | VOUT | power_out | Regulated output; VOUT pin voltage is rated 1.8 V to 5.0 V in recommended operation, with output current 0 to 150 mA and absolute maximum VOUT pin voltage of -0.3 V to 6.0 V. |
| 3 | VIN | power_in | Power supply input; recommended supply range is 2.5 V to 40 V, with absolute maximum supply voltage of -0.3 V to 44 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Lewa Micro |
| Package | SOT-23-3L |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2.5 | 40 | V | 4 | ||
| Output Voltage accuracy | VOUT | -1 | 1 | % | IOUT=1mA | 4 | |
| Current Limit | ILIM | 150 | 250 | mA | VIN=5.0V, VOUT=3.3V | 4 | |
| Quiescent Current | IQ | 1.3 | 2 | μA | VIN=VOUT+1V, No Load | 4 | |
| Shutdown Current | ISHD | 0.1 | 1 | μA | VIN=12V, VEN=0V | 4 | |
| Dropout Voltage at IOUT=10mA | VDROP | 70 | mV | IOUT=10mA, VOUT=3.3V | 4 | ||
| Dropout Voltage at IOUT=50mA | VDROP | 350 | mV | IOUT=50mA, VOUT=3.3V | 4 | ||
| Dropout Voltage at IOUT=100mA | VDROP | 700 | mV | IOUT=100mA, VOUT=3.3V | 4 | ||
| Dropout Voltage at IOUT=150mA | VDROP | 1000 | mV | IOUT=150mA, VOUT=3.3V | 4 | ||
| Line Regulation | SLINE | 0.02 | 0.03 | %/V | VIN=VOUT+1V to 40V, IOUT=1mA | 4 | |
| Load Regulation | SLOAD | 25 | 50 | mV | 1mA≤IOUT≤100mA | 4 | |
| Short Current | ISHORT | 90 | mA | VOUT=0V | 4 | ||
| EN High Voltage | VENH | 1.5 | V | VIN=12V, IOUT =1mA | 4 | ||
| EN Low Voltage | VENL | 0.4 | V | 4 | |||
| EN High Current | IENH | 0 | 0.1 | μA | VIN=12V | 4 | |
| EN Low Current | IENL | 0 | 0.1 | μA | VIN=12V, VEN=0V | 4 | |
| PSRR | PSRR | 72 | dB | CIN=None, IOUT=10mA, VIN=4.3V, f=217Hz | 4 | ||
| PSRR | PSRR | 55 | dB | CIN=None, IOUT=10mA, VIN=4.3V, f=1KHz | 4 | ||
| PSRR | PSRR | 88 | dB | CIN=None, IOUT=10mA, VIN=12V, f=217Hz | 4 | ||
| PSRR | PSRR | 75 | dB | CIN=None, IOUT=10mA, VIN=12V, f=1KHz | 4 | ||
| Thermal Shut Down Temperature | TSD | 165 | ℃ | Temperature rising | 4 | ||
| TSD Hysteresis | △TSD | 20 | ℃ | Temperature falling | 4 | ||
| VIN Supply Voltage | VIN | 2.5 | 40 | V | 3 | ||
| EN Pin Voltage | VEN | 0 | 40 | V | 3 | ||
| VOUT pin Voltage | VOUT | 1.8 | 5 | V | 3 | ||
| Output Current | IOUT | 0 | 150 | mA | 3 | ||
| Junction Temperature Range (operating) | TJ | -40 | 125 | ℃ | 3 | ||
| Supply Voltage (absolute maximum) | VIN | -0.3 | 44 | V | 3 | ||
| EN pin to GND Voltage (absolute maximum) | VEN | -0.3 | 44 | V | 3 | ||
| VOUT pin Voltage (absolute maximum) | VOUT | -0.3 | 6 | V | 3 | ||
| ESD Susceptibility, Human-body model | V(ESD) | -2000 | 2000 | V | Human-body model, per ANSI/ESDA/JEDEC JS-001 | 3 | |
| Maximum Power Dissipation SOT23-3L | PD | 0.69 | W | SOT23-3L, device mounted on FR-4 PCB | 3 | ||
| Junction Temperature Range (absolute maximum) | TJ | -40 | 150 | ℃ | 3 | ||
| Storage Temperature Range | TSTG | -40 | 150 | ℃ | 3 | ||
| Lead Temperature (Soldering) | TSOLDER | 260 | ℃ | 10s | 3 | ||
| Junction-to-ambient Thermal Resistance SOT23-3L | RθJA | 180 | ℃/W | SOT23-3L, device mounted on FR-4 PCB | 3 |
CAD (KiCad official)
- Symbol:
LW5533A23D - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
lw5533a23d-etched.step/lw5533a23d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lw5533a23d.step/lw5533a23d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Lewa Micro datasheet (15 pp, sha256
64193ad6e786f784, 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).