component

ASPL431AZA-R

Public Made by Adom

by adom

ASDsemi Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicaspl431aza-r
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs aspl431aza-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers aspl431aza-r: viewers · Ray
aspl431aza-r-etched.fit.json aspl431aza-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
aspl431aza-r-etched.glb aspl431aza-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
aspl431aza-r-etched.step aspl431aza-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
aspl431aza-r.glb Publish 0.1.0 · Ray
aspl431aza-r.kicad_mod Publish 0.1.0 · Ray
aspl431aza-r.kicad_sym Publish 0.1.0 · Ray
aspl431aza-r.lbr Publish 0.1.0 · Ray
aspl431aza-r.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json aspl431aza-r: specified limits as data (metadata.characteristics, 21 rows from the datasheet) · Ray
README.md aspl431aza-r: specified limits as data (metadata.characteristics, 21 rows from the datasheet) · Ray

ASPL431AZA-R

ASDsemi · Voltage Reference · SOT-23

ASPL431AZA-R from ASDsemi, in a SOT-23. 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 / feedback input to the internal error amplifier. Compared against the internal 2.5 V bandgap reference to regulate the cathode voltage. Typical reference current 0.3 uA (0.6 uA max); absolute maximum input current 10 mA.
2 CATHODE passive Cathode (K) terminal of the shunt regulator. Sinks the regulated current to the anode when the REF voltage exceeds VREF (2.5 V). Recommended operating cathode voltage VREF to 36 V; sink current 0.2 mA to 100 mA; absolute maximum 40 V and +/-100..150 mA.
3 ANODE passive Anode (A) terminal of the shunt regulator; the return / ground-side terminal of the internal shunt path. Typically tied to circuit ground in a shunt-regulator configuration.

Key specifications

Parameter Value
Manufacturer ASDsemi
Package SOT-23
Category PMIC
Pins 3

Ordering variants

  • ASPL431AZA-R
  • ASPL431AZA-RN

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Cathode Voltage VKA 40 V 4
Cathode Current Range (Continuous) IKA -100 150 mA 4
Reference Input Current Range IREF 10 mA 4
Power Dissipation (Z, R Package) PD 770 mW Z, R Package 4
Junction Temperature TJ 150 °C 4
Storage Temperature Range TSTG -65 150 °C 4
ESD (Human Body Model) ESD 3500 V Human Body Model 4
Thermal Resistance (Junction to Ambient), SOT23 θJA 380 °C/W SOT23 4
Cathode Voltage (max) VKA 36 V Minimum printed as VREF (symbol, not a number) 4
Cathode Current IKA 0.2 100 mA 4
Operating Ambient Temperature Range TA -25 125 °C 4
Reference Voltage (0.8% grade) VREF 2.48 2.5 2.52 V 0.8% grade; VKA = VREF, IKA = 10mA; TA = +25°C 5
Deviation of Reference Voltage Over Full Temperature Range VREF -5 -20 mV VKA = VREF, IKA = 10mA, -20 to +110°C 5
Reference Current IREF 0.3 0.6 µA IKA = 10mA, R1 = 10kΩ, R2 = ∞ 5
Deviation of Reference Current Over Full Temperature Range IREF 0.2 0.3 µA IKA = 10mA, R1 = 10kΩ, R2 = ∞, TA = -40 to +125°C 5
Minimum Cathode Current for Regulation IKA(Min) 0.15 0.4 mA VKA = VREF 5
Off-state Cathode Current IKA(Off) 0.01 1 µA VKA = 36V, VREF = 0 5
Dynamic Impedance ZKA 0.1 0.5 Ω VKA = VREF, IKA = 1 to 100mA, f ≤ 1.0kHz 5
Ratio of Change in Reference Voltage to Change in Cathode Voltage VREF/VKA -1.87 mV/V IKA = 10mA, VKA = 10V to VREF 5
Ratio of Change in Reference Voltage to Change in Cathode Voltage VREF/VKA -1.38 mV/V IKA = 10mA, VKA = 36V to 10V 5
Thermal Resistance (Junction to Case), SOT23 θJC 113 °C/W 5

CAD (KiCad official)

  • Symbol: ASPL431AZA-R
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: aspl431aza-r-etched.step / aspl431aza-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aspl431aza-r.step / aspl431aza-r.glb are the bare package body.

Provenance

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

  • Datasheet: ASDsemi datasheet (13 pp, sha256 fac3b148060f40c4, retrieved 2026-08-17, tier: lcsc)
  • 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).

Datasheet PDF