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LM4040A30IDCKR

Texas Instruments · Voltage Reference · SC-70-5

LM4040A30IDCKR from Texas Instruments, in a SC-70-5. 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 ANODE output Common pin, normally connected to ground.
2 * input Must float or connect to anode; TI recommends connecting it to the anode in applications with high electromagnetic interference or significant high-frequency switching noise.
3 CATHODE bidirectional Shunt current/voltage input with recommended cathode current of 15 mA maximum and absolute maximum continuous cathode current of -10 to 25 mA.
4 NC unconnected No internal connection.
5 NC unconnected No internal connection.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse breakdown voltage tolerance ΔVZ -3 3 mV IZ = 100μA, 25°C 12
Reverse breakdown voltage tolerance ΔVZ -22 22 mV IZ = 100μA, full range 12
Average temperature coefficient of reverse breakdown voltage αVZ -20 20 ppm/°C IZ = 10mA, 25°C 12
Average temperature coefficient of reverse breakdown voltage αVZ -15 15 ppm/°C IZ = 1mA, 25°C 12
Average temperature coefficient of reverse breakdown voltage αVZ -100 100 ppm/°C full range 12
Minimum cathode current IZ,min 47 77 μA 25°C 12
Minimum cathode current IZ,min 82 μA full range 12
Reverse breakdown voltage change with cathode current change VZ/IZ 0.6 0.8 mV IZ,min < IZ < 1mA, 25°C 12
Reverse breakdown voltage change with cathode current change VZ/IZ 1.1 mV IZ,min < IZ < 1mA, full range 12
Reverse breakdown voltage change with cathode current change VZ/IZ 2.7 6 mV 1mA < IZ < 15mA, 25°C 12
Reverse breakdown voltage change with cathode current change VZ/IZ 9 mV 1mA < IZ < 15mA, full range 12
Reverse dynamic impedance ZZ 0.4 0.9 Ω IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, 25°C 12
Continuous cathode current IZ -10 25 mA 5
Operating virtual junction temperature TJ 150 °C 5
Storage temperature range Tstg -65 150 °C 5
Cathode current IZ 15 mA 5
Free-air temperature (LM4040xxxI) TA -40 85 °C LM4040xxxI 5
Junction-to-ambient thermal resistance (DCK, 5 pins) RθJA 252 °C/W DCK package, 5 pins 5

CAD (KiCad official)

  • Symbol: LM4040A30IDCKR
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: lm4040a30idckr-etched.step / lm4040a30idckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4040a30idckr.step / lm4040a30idckr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (62 pp, sha256 f43b6b6d3ecd51c8, retrieved 2026-11-05, tier: manufacturer)
  • 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