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REF3433IDBVR
Public Unreviewedby Ray
Texas Instruments Voltage Reference, SOT-23-6. Datasheet-verified pinout, 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
markdownREF3433IDBVR
Texas Instruments · Voltage Reference · SOT-23-6
REF3433IDBVR from Texas Instruments, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND_F | power_in | Ground force connection. Kelvin-sense ground force pin; carries the return current path for the reference. Tie together with GND_S at the load return for best accuracy. |
| 2 | GND_S | power_in | Ground sense connection. Kelvin-sense ground reference pin used by the internal error amplifier to sense the true ground potential at the load, cancelling IR drops in the GND_F return trace. |
| 3 | EN | input | Enable input. Drive above 1.6 V (up to VIN) to enable the reference; drive below 0.5 V to place the device in shutdown mode (IQ ~2.5 µA typ). Leakage is ~1 µA typ at VEN = 12 V. |
| 4 | IN | power_in | Input supply voltage. Operating range VOUT + VDO (dropout) up to 12 V; absolute max 13 V. Bypass with 0.1 µF ceramic close to the pin. |
| 5 | OUT_S | input | Reference voltage output sense connection. Kelvin-sense feedback input used by the internal amplifier to regulate the voltage at the load rather than at the device pin, eliminating trace-drop errors. Tie to OUT_F at the load. |
| 6 | OUT_F | output | Reference voltage output force connection. Provides the regulated 3.3 V reference output (±10 mA source/sink). Requires a stable output capacitor in the range 0.1 µF to 10 µF (10 µF typical). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
Ordering variants
Same part, different packaging or reel option.
REF3433IDBVRREF3433IDBVTREF3433IDBVRTIDBVRREF3433IDBVRTIDBVT
CAD (KiCad official)
- Symbol:
REF3433IDBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (32 pp, sha256
4daf8dbbd5b7be4c, retrieved 2026-08-17, tier: manufacturer) - 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).