component
REF350SOT233
Public Made by Adomby adom
analogysemi Voltage Reference, SOT-23-3. 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
markdownREF350SOT233
analogysemi · Voltage Reference · SOT-23-3
REF350SOT233 from analogysemi, in a SOT-23-3. 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 | IN | power_in | Supply voltage input; the datasheet specifies VIN from VOUT + 0.02 V (Table 5) to 5.5 V recommended, with a 6.5 V absolute maximum input rating. |
| 2 | OUT | output | Reference voltage output that sources or sinks up to ±25 mA of load current (Table 5), with a continuous short-circuit rating of 50 mA sourcing and 50 mA sinking. |
| 3 | GND | power_in | Ground reference pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | analogysemi |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage (absolute maximum) | 6.5 | V | 3 | ||||
| Output voltage (absolute maximum) | 5 | V | 3 | ||||
| Operating temperature (absolute maximum) | TA | -55 | 150 | °C | 3 | ||
| Junction temperature (absolute maximum) | TJ | 150 | °C | 3 | |||
| Storage temperature (absolute maximum) | Tstg | -65 | 150 | °C | 3 | ||
| Electrostatic discharge, human-body model | V (ESD) | -8000 | 8000 | V | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 | 3 | |
| Electrostatic discharge, charged-device model | V (ESD) | -2000 | 2000 | V | Charged-device model (CDM), per JEDEC JESD22-C101 | 3 | |
| Supply input voltage | VIN | 5.5 | V | 4 | |||
| Output current range | IOUT | -25 | 25 | mA | 4 | ||
| Operating temperature (recommended) | TA | -55 | 135 | °C | 4 | ||
| Junction-to-ambient thermal resistance | RθJA | 176.7 | °C/W | SOT23-3 package | 4 | ||
| Junction-to-board thermal resistance | RθJB | 22.9 | °C/W | SOT23-3 package | 4 | ||
| Junction-to-top characterization parameter | ψJT | 4.2 | °C/W | SOT23-3 package | 4 | ||
| Junction-to-board characterization parameter | ψJB | 26.7 | °C/W | SOT23-3 package | 4 | ||
| Junction-to-case (top) thermal resistance | RθJC (top) | 84.9 | °C/W | SOT23-3 package | 4 | ||
| Initial accuracy | -0.1 | 0.05 | 0.1 | % | 6 | ||
| Line regulation | -850 | 140 | 850 | µV/V | VOUT + 0.05V ≤ VIN ≤ 5.5V | 6 | |
| Line regulation over temperature | -2500 | 2500 | µV/V | −40°C ≤ TA ≤ 125°C, VOUT + 0.05V ≤ VIN ≤ 5.5V | 6 | ||
| Output voltage | VOUT | 5 | V | VIN = 5.25V | 6 | ||
| Dropout voltage at ILOAD = 50µA | 2 | 11 | mV | ILOAD = 50µA, output > 2.048V | 6 | ||
| Dropout voltage at ILOAD = 10mA | 100 | mV | ILOAD = 10mA, output > 2.048V | 6 | |||
| Output current | ILOAD | -25 | 25 | mA | output > 2.048V, VIN = VOUT + 250mV | 6 | |
| Short-circuit current, sourcing | ISC | 50 | mA | Sourcing | 7 | ||
| Short-circuit current, sinking | ISC | 50 | mA | Sinking | 7 | ||
| Turn-on settling time | 20 | ms | To 0.1% at VIN = 5V with CL = 0 | 7 | |||
| Supply voltage | VIN | 5.5 | V | IL = 0 | 7 | ||
| Supply current | IQ | 60 | 80 | µA | IL = 0 | 7 | |
| Supply current, overtemperature | IQ | 85 | µA | 0°C ≤ TA ≤ 125°C, IL = 0 | 7 | ||
| Specified temperature range | -40 | 125 | °C | Specified | 7 | ||
| Operating temperature range | -55 | 135 | °C | Operating | 7 | ||
| Storage temperature range | -65 | 150 | °C | Storage | 7 | ||
| Output voltage temperature drift | dVOUT/dT | 5 | 20 | ppm/°C | −40°C ≤ TA ≤ 125°C | 6 | |
| Long-term stability, 0h to 100h | 80 | ppm | 0h to 100h | 6 | |||
| Long-term stability, 0h to 1000h | 130 | ppm | 0h to 1000h | 6 | |||
| Load regulation, sourcing | dVOUT/dLOAD | -30 | -2 | 30 | ppm/mA | Sourcing, 0mA < ILOAD < 25mA, VIN = VOUT + 250mV | 6 |
| Load regulation, sourcing over temperature | dVOUT/dLOAD | -30 | 30 | ppm/mA | −40°C ≤ TA ≤ 125°C, sourcing, 0mA < ILOAD < 10mA, VIN = VOUT + 250mV | 6 | |
| Load regulation, sinking | dVOUT/dLOAD | -100 | -57 | 100 | ppm/mA | Sinking, −10mA < ILOAD < 0mA, VIN = VOUT + 100mV | 6 |
| Load regulation, sinking over temperature | dVOUT/dLOAD | -150 | 150 | ppm/mA | −40°C ≤ TA ≤ 125°C, sinking, −10mA < ILOAD < 0mA, VIN = VOUT + 100mV | 6 | |
| Thermal hysteresis, first cycle | dT | -300 | 300 | ppm | First Cycle | 6 | |
| Thermal hysteresis, additional cycles | dT | -60 | 60 | ppm | Additional Cycles | 6 | |
| Ripple rejection ratio | -53 | dB | 100mV, 1kHz | 6 |
CAD (KiCad official)
- Symbol:
REF350SOT233 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
ref350sot233-etched.step/ref350sot233-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ref350sot233.step/ref350sot233.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: analogysemi datasheet (17 pp, sha256
1bd116cea5a7950d, 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-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).