component
TL432ASC
Public Made by Adomby adom
PJSEMI 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
markdownTL432ASC
PJSEMI · Voltage Reference · SOT-23-3
TL432ASC from PJSEMI, 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 | REF | input | Reference input of the 1.25 V bandgap; the datasheet gives an absolute maximum reference input current of 10 mA and a reference input voltage of 1.238 V to 1.262 V for the 1% (TL432A) grade. |
| 2 | Cathode | passive | Cathode of the shunt regulator, with a recommended operating range of VREF to 18 V and recommended cathode current of 0.1 mA to 100 mA; the absolute maximum cathode current is -100 mA to +100 mA. |
| 3 | Anode | passive | Common anode terminal to which the cathode voltage VKA and cathode current IKA are referenced; the datasheet states no separate anode voltage or current limit. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Input Voltage (TL432A 1% grade, applies to TL432ASC) | VREF | 1.238 | 1.25 | 1.262 | V | VKA=VREF, IKA=10mA | 4 |
| Deviation of Reference Input Voltage Over Temperature | ΔVREF | 2 | 10 | mV | VKA=VREF, IKA=10mA, 0°C ≤TA≤70°C | 4 | |
| Deviation of Reference Input Voltage Over Temperature | ΔVREF | 3 | 15 | mV | VKA=VREF, IKA=10mA, -20°C ≤TA≤125°C | 4 | |
| Deviation of Reference Input Voltage Over Temperature | ΔVREF | 8 | 25 | mV | VKA=VREF, IKA=10mA, -40°C ≤TA≤125°C | 4 | |
| Ratio of Change in Reference Input Voltage to Change in Cathode Voltage | ΔVREF/ΔVKA | -0.5 | -1.5 | mV/V | IKA=10mA, VKA=VREF~16V | 4 | |
| Reference Input Current | IREF | 0.15 | 0.4 | µA | IKA=10mA, R1=10KΩ, R2=∞ | 4 | |
| Deviation of Reference Input Current Over Full Temperature Range | ΔIREF | 0.4 | µA | IKA=10mA, R1=10KΩ, R2=∞, -20°C ≤TA≤+85°C | 4 | ||
| Minimum Cathode Current for Regulation | IKA(MIN) | 80 | µA | VKA=VREF | 4 | ||
| Off-State Cathode Current | IKA(OFF) | 0.04 | 0.5 | µA | VKA=18V, VREF=0 | 4 | |
| Dynamic Impedance | ZKA | 0.05 | 0.15 | Ω | VKA=VREF, IKA=1~100mA, f≤1.0KHz | 4 | |
| Cathode Voltage (absolute maximum) | VKA | 20 | V | 3 | |||
| Cathode Current Range (Continuous) | IKA | -100 | 100 | mA | 3 | ||
| Reference Input Current Range | IREF | 10 | mA | 3 | |||
| Operating Junction Temperature | TJ | 150 | °C | 3 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 3 | ||
| Cathode Voltage (recommended) | VKA | 18 | V | Lower limit printed as VREF | 3 | ||
| Cathode Current (recommended) | IKA | 0.1 | 100 | mA | 3 | ||
| Operating Ambient Temperature Range | TOPR | -40 | 125 | °C | 3 | ||
| Junction-to-Ambient Thermal Resistance (SOT-23-3) | RθJA | 416 | °C/W | SOT-23-3 package | 3 |
CAD (KiCad official)
- Symbol:
TL432ASC - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
tl432asc-etched.step/tl432asc-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl432asc.step/tl432asc.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PJSEMI datasheet (10 pp, sha256
0e3abb650e4eda45, retrieved 2026-10-19, tier: lcsc) - 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).