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LTP3637-33YT5
Public Made by Adomby adom
Linearin Linear Voltage Regulators (LDO), SOT-23-5L. 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
markdownLTP3637-33YT5
Linearin · Linear Voltage Regulators (LDO) · SOT-23-5L
LTP3637-33YT5 from Linearin, in a SOT-23-5L. 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 | Power supply input voltage, operating range 2.0 V to 5.5 V (6.5 V absolute maximum), with at least a 1 µF ceramic capacitor to GND recommended. |
| 2 | GND | power_in | Ground. |
| 3 | EN | input | Chip enable pin, not suspended (must not be left floating); VEN absolute maximum range is -0.3 to 6.0 V. |
| 4 | NC | unconnected | No connection. |
| 5 | OUT | power_out | Regulated output pin delivering up to 300 mA, with a 1 µF ceramic output capacitor placed as close as possible. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Linearin |
| Package | SOT-23-5L |
| Category | Power Management ICs |
| 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 (absolute maximum) | VIN | 6.5 | V | 2 | |||
| Chip Enable Input (absolute maximum) | VEN | -0.3 | 6 | V | 2 | ||
| Operating Junction Temperature | TJ | 150 | °C | 2 | |||
| Storage Temperature | TSTG | -55 | 150 | °C | 2 | ||
| Latch up current maximum rating | 200 | mA | 2 | ||||
| Input Voltage (recommended) | VIN | 2 | 5.5 | V | 3 | ||
| Output Current | IOUT | 0 | 300 | mA | 3 | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 3 | ||
| Effective Input Ceramic Capacitor Value | CIN | 0.47 | 4.7 | μF | 3 | ||
| Effective Output Ceramic Capacitor Value | COUT | 0.47 | 4.7 | μF | 3 | ||
| Output Voltage accuracy | VOUT | -1.5 | 1.5 | % | TA = +25 °C | 3 | |
| Output Voltage accuracy over temperature | VOUT | -2.5 | 2.5 | % | −40 °C ≤ TA ≤ 85 °C | 3 | |
| Operating Input | VIN | 2 | 5.5 | V | 3 | ||
| Quiescent Current | IQ | 0.8 | 1.1 | μA | IOUT = 0 mA | 3 | |
| Line Regulation | LineReg | 0.1 | 0.2 | %/V | 2.5 V ≤ VIN ≤ 5.5 V, IOUT = 1 mA | 3 | |
| Current Limit | ILMT | 300 | 550 | mA | 3 | ||
| Shutdown Current | ISD | 0.1 | μA | VEN = 0 V | 3 | ||
| Load Regulation | LoadReg | 20 | mV | 1 mA ≤ IOUT ≤ 150 mA, VIN = 2.5 V | 3 | ||
| Dropout Voltage | VDROP | 170 | mV | IOUT = 150 mA | 3 | ||
| Short Circuit Current | ISHORT | 90 | mA | VOUT = 0 V | 3 | ||
| PSRR at 1 kHz | PSRR | -55 | dB | IOUT = 100 mA, f = 1 kHz | 3 | ||
| PSRR at 10 kHz | PSRR | -52 | dB | IOUT = 100 mA, f = 10 kHz | 3 | ||
| Output Noise Voltage | eN | 100 | μVrms | VIN = 2.5 V, IOUT = 1 mA, f = 10 Hz to 100 kHz, COUT = 1 μF | 3 | ||
| Thermal Resistance Junction-to-Air | RθJA | 250 | °C/W | SOT23-5L | 2 | ||
| ESD Human Body Model | ESD | 6000 | V | Human Body Model | 2 | ||
| ESD Capability (second rating) | ESD | 2000 | V | 2 |
CAD (KiCad official)
- Symbol:
LTP3637-33YT5 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
ltp3637-33yt5-etched.step/ltp3637-33yt5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltp3637-33yt5.step/ltp3637-33yt5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Linearin datasheet (6 pp, sha256
a67742ee0fe18675, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).