component
REF5045ID
Public Made by Adomby adom
Texas Instruments Voltage Reference, 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
markdownREF5045ID
Texas Instruments · Voltage Reference · SOIC-8
REF5045ID 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; leave this pin floating. |
| 2 | VIN | power_in | Input supply voltage, which must be at least VOUT + 0.2 V and no more than 18 V for the REF50xxI/REF50xxAI grades. |
| 3 | TEMP | output | Analog temperature-proportional output (nominally 509 mV + 2.64 mV/°C for REF50xxI) with about 60 kΩ source impedance and ±15 °C accuracy, so a low-impedance load must be avoided or the pin buffered with a low-drift op amp. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | TRIM/NR | passive | Output trim or noise-reduction pin; a 1 µF capacitor to GND forms a 10 Hz to 20 Hz low-pass that roughly halves output noise at the cost of longer startup time. |
| 6 | VOUT | power_out | Reference voltage output that sources and sinks up to ±10 mA and must be decoupled to GND with CL of 1 µF to 50 µF and ESR at or below 1.5 Ω for stability. |
| 7 | NC | unconnected | No internal connection; may be left floating or connected to GND. |
| 8 | DNC | unconnected | Do not connect; leave this pin floating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
REF5045ID - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ref5045id-etched.step/ref5045id-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ref5045id.step/ref5045id.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (51 pp, sha256
4545890dc0416afc, retrieved 2026-10-08, 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).