component
SL7550-3
Public Made by Adomby adom
Slkor SLKORMICRO Elec Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. 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
markdownSL7550-3
Slkor SLKORMICRO Elec · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
SL7550-3 from Slkor SLKORMICRO Elec, in a SOT-23. 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, listed in the datasheet pin table only as 地 (ground), with no separate electrical limit given for this pin. |
| 2 | VOUT | power_out | Regulated output pin; for SL7550-3 the output is 5.0 V typ (4.9 V to 5.1 V) at VIN=VOUT+2.0V and IOUT=10mA, with output current of at least 100 mA, and the datasheet requires an output-to-ground capacitor greater than 2.2 µF (tantalum recommended). |
| 3 | VIN | power_in | Input supply pin; the datasheet gives an absolute maximum working voltage of −0.3 V to +26 V and an input voltage rating of 24 V in the SL7550-3 electrical characteristics. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| Package | SOT-23 |
| 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 | VOUT | 4.9 | 5 | 5.1 | V | VIN=VOUT+2.0V, IOUT=10mA | 5 |
| Output current | IOUT | 100 | 150 | mA | VIN=VOUT+2.0V | 5 | |
| Load regulation | △VOUT | 25 | 60 | mV | VIN=VOUT+2.0V, 1mA≤IOUT≤70mA | 5 | |
| Dropout voltage | VDIF | 25 | 55 | mV | IOUT=1mA, △VOUT=2% | 5 | |
| Quiescent current | ISS | 1.5 | 3 | μA | No load | 5 | |
| Line regulation | △VOUT/VOUT*△VIN | 0.2 | %/V | VOUT+1.0V≤VIN≤24V, IOUT=1mA | 5 | ||
| Input voltage (operating) | VIN | 24 | V | 5 | |||
| Input voltage (absolute maximum) | VIN | -0.3 | 26 | V | Working voltage | 2 | |
| Operating temperature | TA | -40 | 85 | ℃ | 2 | ||
| Storage temperature | TSTG | -50 | 125 | ℃ | 2 | ||
| Output voltage temperature coefficient | △VOUT/△TA*VOUT | 100 | ppm/℃ | VIN=VOUT+2.0V, IOUT=10mA, -40℃≤TA≤85℃ | 5 | ||
| Minimum output capacitor (output to GND) | 2.2 | μF | Output to GND capacitor larger than 2.2μF; tantalum recommended | 6 |
CAD (KiCad official)
- Symbol:
SL7550-3 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
sl7550-3-etched.step/sl7550-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sl7550-3.step/sl7550-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor SLKORMICRO Elec datasheet (8 pp, sha256
9d68fa5ef6a3ed0c, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).