component
REF5050ID
Public Made by Adomby adom
Texas Instruments Voltage References, SOIC-8. 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
markdownREF5050ID
Texas Instruments · Voltage References · SOIC-8
REF5050ID from Texas Instruments, in a SOIC-8. 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 | DNC | unconnected | Do not connect; this pin is listed as 'Do not connect' in Table 5-1 for the REF50xxI. |
| 2 | VIN | power_in | Input supply voltage; the absolute maximum for REF50xxI is 18V and the recommended input is VOUT + 0.2V minimum to 18V. |
| 3 | TEMP | output | Temperature monitoring output giving VTEMP = 509mV + 2.64 × T(°C) for REF50xxI with about 60kΩ source impedance and ±15°C accuracy, and low-impedance loads cause measurement error. |
| 4 | GND | power_in | Ground reference pin for the device. |
| 5 | TRIM/NR | passive | Output adjustment or noise reduction pin on the REF50xxI; the datasheet gives no numeric limit for this pin on this grade. |
| 6 | VOUT | output | Reference voltage output (5.0V for REF5050), rated for ±10mA output current with an absolute maximum of 5.5V. |
| 7 | NC | unconnected | No internal connection on the REF50xxI. |
| 8 | DNC | unconnected | Do not connect. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |
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 | -0.3 | 18 | V | Specification for REF50xxI and REF50xxAI (note 2) | 5 | |
| Output voltage (absolute maximum) | VOUT | -0.3 | 5.5 | V | 5 | ||
| Operating temperature (absolute maximum) | TA | -55 | 125 | °C | 5 | ||
| Junction temperature (absolute maximum) | TJ max | 150 | °C | 5 | |||
| Storage temperature range (absolute maximum) | Tstg | -65 | 150 | °C | 5 | ||
| Input voltage (recommended) | VIN | 18 | V | Specification for REF50xxI and REF50xxAI (note 2); minimum is VOUT + 0.2 V as printed (note 1) | 5 | ||
| Output current | IOUT | -10 | 10 | mA | 5 | ||
| Operating ambient temperature | TA | -40 | 25 | 125 | °C | 5 | |
| Initial accuracy (high grade) | -0.05 | 0.05 | % | All voltage options (1) | 7 | ||
| Output voltage temperature drift (high grade) | dVOUT/dT | 2.5 | 3 | ppm/℃ | TA = -40°C to 125°C | 7 | |
| Line regulation | ΔVO(ΔVI) | 1 | 3 | ppm/V | VIN = (VOUT + 0.2V) to 18V(1) | 7 | |
| Line regulation over temperature | ΔVO(ΔVI) | 1 | 5 | ppm/V | IN = (VOUT + 0.2V) TO 18V, TA = -40°C to 125°C(1) | 7 | |
| Load regulation | ΔVO(ΔIL) | 20 | 30 | ppm/mA | -10mA < IOUT < 10mA, VIN = VOUT + 0.75V(2) | 7 | |
| Load regulation over temperature | ΔVO(ΔIL) | 50 | ppm/mA | -10mA < IOUT < 10mA, VIN = VOUT + 0.75V(2), TA = -40°C to 125°C | 7 | ||
| Quiescent current | IQ | 0.8 | 1 | mA | 8 | ||
| Quiescent current over temperature | IQ | 1.2 | mA | -40°C ≤ TA ≤ 125°C | 8 | ||
| Supply voltage | VS | 18 | V | See note (1); minimum is VOUT + 0.2 as printed | 8 | ||
| Specified temperature range | -40 | 125 | °C | 8 | |||
| Operating temperature range | -55 | 125 | °C | 8 | |||
| Output voltage (REF5050) | VOUT | 5 | V | 7 | |||
| Thermal resistance junction-to-ambient (SOIC-8) | RθJA | 115 | °C/W | 6 | |||
| Thermal resistance junction-to-case (top, SOIC-8) | RθJC(top) | 63.4 | °C/W | 6 | |||
| Thermal resistance junction-to-board (SOIC-8) | RθJB | 57.1 | °C/W | 6 | |||
| Junction-to-top characterization parameter (SOIC-8) | ΨJT | 15.4 | °C/W | 6 | |||
| Junction-to-board characterization parameter (SOIC-8) | ΨJB | 56.2 | °C/W | 6 |
CAD (KiCad official)
- Symbol:
REF5050ID - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ref5050id-etched.step/ref5050id-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ref5050id.step/ref5050id.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (52 pp, sha256
33b13191ad54693f, retrieved 2026-10-30, tier: manufacturer) - 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).