component
LKP2872ST-30
Public Made by Adomby adom
LKWIC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownLKP2872ST-30
LKWIC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LKP2872ST-30 from LKWIC, in a SOT-23-5. 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 | IN | power_in | Input supply pin (operating 1.8V to 15V, absolute maximum ±18V); a 1μF to 10μF ceramic capacitor to GND is recommended. |
| 2 | GND | power_in | Ground pin. |
| 3 | SHDN# | input | Active-low shutdown input that must be connected to IN, and the device will not operate if this pin is left floating. |
| 4 | BYP | passive | Bypass pin on the fixed-output version: a 0.01μF ceramic capacitor to OUT reduces noise to 20μVRMS (10Hz to 100kHz), and it must be left floating if unused (pin 4 is labeled BYP/ADJ; ADJ applies only to the adjustable version). |
| 5 | OUT | power_out | Regulated output pin (3.0V for the -30 version, up to 100mA); connect a ceramic or tantalum capacitor of at least 1μF to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LKWIC |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
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 (IN) | VIN | 1.8 | 15 | V | 6 | ||
| Input voltage (IN/SHDN# pin) | VIN | 18 | V | 6 | |||
| Output voltage (OUT pin) | VOUT | 18 | V | 6 | |||
| Storage temperature | TSTG | -65 | 150 | ℃ | 6 | ||
| Junction temperature | Tj | 150 | ℃ | 6 | |||
| Line regulation LKP2872ST-30 | 1 | 10 | mV | ILOAD = 1mA | 7 | ||
| GND pin current | 1 | 2 | mA | ILOAD = 50mA | 7 | ||
| Reverse input leakage current | 1 | mA | VIN = -12V, VOUT = 0V | 7 | |||
| Reverse output current LKP2872ST-30 | 10 | 20 | μA | VOUT = 3.0V, VIN < 3.0V | 7 | ||
| Junction-to-case thermal resistance (top) | RθJc | 50.18 | °C/W | 5 | |||
| Junction-to-case thermal resistance (bottom) | RθJc | 178.92 | °C/W | 5 |
CAD (KiCad official)
- Symbol:
LKP2872ST-30 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lkp2872st-30-etched.step/lkp2872st-30-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lkp2872st-30.step/lkp2872st-30.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LKWIC datasheet (11 pp, sha256
36bd3ee8b7e961db, retrieved 2026-10-17, 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-sonnet-5-5(text+vision), consensusclaude-opus-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).