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SPX432M-L

Public Made by Adom

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MaxLinear Voltage References, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SPX432M-L

MaxLinear · Voltage References · SOT-23-3

SPX432M-L from MaxLinear, 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 internal 1.24V bandgap; the datasheet limits reference input current to 1mA (absolute maximum) and sets output voltage as VREF to 18V at the cathode via an external divider.
2 ANODE passive Anode is the common terminal of the shunt regulator, with a cathode-anode reverse breakdown rating of 20V and a forward current limit of 1A for pulses under 10ms.
3 CATHODE passive Cathode is the shunt output, operating from VREF to 18V with cathode current from 1mA to 80mA (minimum current for regulation 1mA).

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SOT-23-3
Category Power Management ICs
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
Output Voltage (SPX432 1.0% grade, SOT-23) VREF 1.2276 1.24 1.2524 V 3a 2
Temperature Deviation VREF 12 20 mV 3a, 0 < TJ < 105°C 2
Line Regulation VREF 19 37 mV 3b, VKA = 1.25V to 15V 2
Load Regulation VREF 12 30 mV 3a, IK = 1mA to 80mA 2
Reference Input Current IREF 36 µA 3b 2
Reference Input Current over temperature IREF 0.3 0.6 µA 3b, 0 < TJ < 105°C 2
Minimum Cathode Current for Regulation IK(MIN) 0.6 1 mA 3a 2
Off State Leakage IK(OFF) 0.04 500 nA 3c, VREF = 0V, VKA = 18V 2
Cathode-Anode Reverse Breakdown VKA 20 V 2
Anode-Cathode Forward Current IAK 1 A <10ms 2
Operating Cathode Current IKA 80 mA 2
Reference Input Current IREF 1 mA 2
Continuous Power Dissipation at 25°C (SOT-23) PD 200 mW at 25°C, SOT-23 2
Junction Temperature TJ 150 °C 2
Storage Temperature TSTG -65 150 °C 2
Lead Temperature (Soldering) TL 300 °C Soldering 10 sec. 2
Cathode Voltage (recommended) VKA 18 V Printed as VREF to 18 V 2
Cathode Current (recommended) IK 10 mA 2
Junction-to-ambient thermal resistance (SOT-23) θJA 575 °C/W SOT-23 typical 2
Junction-to-case thermal resistance (SOT-23) θJC 150 °C/W SOT-23 typical 2
Typical derating (SOT-23) 1.7 mW/°C ambient temperature >25°C 2

CAD (KiCad official)

  • Symbol: SPX432M-L
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: spx432m-l-etched.step / spx432m-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spx432m-l.step / spx432m-l.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: MaxLinear datasheet (11 pp, sha256 e318447f0fee314a, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF