component
TL432BIDBZR
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23-3. Pinout extracted from 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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Contents
README
markdownTL432BIDBZR
Texas Instruments · Voltage Reference · SOT-23-3
TL432BIDBZR from Texas Instruments, in a SOT-23-3. 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 | REF | input | Reference / threshold input. Internal error amplifier compares this pin against the internal 2.5 V bandgap; the resistor divider from CATHODE to ANODE ties here to program the regulated Vka. Reference input current range -0.05 to 10 mA (absolute max). |
| 2 | CATHODE | passive | Shunt cathode (K) - the regulated node. Sinks 1 mA to 100 mA when Vref threshold is exceeded. Vka range Vref to 36 V (abs max 37 V); continuous cathode current -100 to 150 mA. |
| 3 | ANODE | passive | Shunt anode (A), the common/ground return. All voltage specifications are referenced to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
TL432BIDBZRTL432BIDBZTTL432BIDBZRIDBVRTL432BIDBZRIDBVTTL432BIDBZRIPK
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reference voltage | Vref | 2483 | 2495 | 2507 | mV | VKA = Vref, IKA = 10 mA; See Figure 20 | 13 |
| Deviation of reference input voltage over full temperature range | VI(dev) | 14 | 34 | mV | VKA = Vref, IKA = 10 mA; See Figure 20 | 13 | |
| Ratio of change in reference voltage to change in cathode voltage (ΔVKA = 10 V – Vref) | ΔVref/ΔVKA | -1.4 | -2.7 | mV/V | IKA = 10 mA, ΔVKA = 10 V – Vref; See Figure 21 | 13 | |
| Ratio of change in reference voltage to change in cathode voltage (ΔVKA = 36 V – 10 V) | ΔVref/ΔVKA | -1 | -2 | mV/V | IKA = 10 mA, ΔVKA = 36 V – 10 V; See Figure 21 | 13 | |
| Reference input current | Iref | 2 | 4 | µA | IKA = 10 mA, R1 = 10 kΩ, R2 = ∞; See Figure 21 | 13 | |
| Deviation of reference input current over full temperature range | II(dev) | 0.8 | 2.5 | µA | IKA = 10 mA, R1 = 10 kΩ, R2 = ∞; See Figure 21 | 13 | |
| Minimum cathode current for regulation | Imin | 0.4 | 0.7 | mA | VKA = Vref; See Figure 20 | 13 | |
| Off-state cathode current | Ioff | 0.1 | 0.5 | µA | VKA = 36 V, Vref = 0; See Figure 22 | 13 | |
| Dynamic impedance | /zKA/ | 0.2 | 0.5 | Ω | VKA = Vref, f ≤ 1 kHz, IKA = 1 mA to 100 mA; See Figure 20 | 13 | |
| Cathode voltage (recommended operating) | VKA | 36 | V | 5 | |||
| Cathode current (recommended operating) | IKA | 1 | 100 | mA | 5 | ||
| Operating free-air temperature | TA | -40 | 85 | °C | TL43xxI | 5 | |
| Cathode voltage (absolute maximum) | VKA | 37 | V | 5 | |||
| Continuous cathode current range | IKA | -100 | 150 | mA | 5 | ||
| Reference input current range | II(ref) | -0.05 | 10 | mA | 5 | ||
| Operating virtual junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 5 | ||
| Junction-to-ambient thermal resistance (DBZ, SOT-23-3) | RθJA | 206 | °C/W | DBZ (3-pin SOT-23) package | 5 | ||
| Junction-to-case (top) thermal resistance (DBZ, SOT-23-3) | RθJC(top) | 76 | °C/W | DBZ (3-pin SOT-23) package | 5 |
CAD (KiCad official)
- Symbol:
TL432BIDBZR - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
tl432bidbzr-etched.step/tl432bidbzr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl432bidbzr.step/tl432bidbzr.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
tl432bidbzr.step |
59 KB | You want the bare part, or you mark your own boards. |
tl432bidbzr-etched.step |
1.8 MB | You want the part with TL432BIDBZR already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 457 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (83 pp, sha256
973a56a301e94b8b, retrieved 2026-08-17, tier: manufacturer) - 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).