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LM4041CIDBZT

Public Made by Adom

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

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LM4041CIDBZT

Texas Instruments · Voltage Reference · SOT-23

LM4041CIDBZT from Texas Instruments, in a SOT-23. 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 FB input Feedback pin for setting the adjustable output voltage through an external resistor divider, with VZ = VREF(1 + R2/R1) and VREF of 1.225 V; the feedback pin is ESD-rated at 1 kV HBM, while the other pins are rated at 2 kV.
2 Cathode bidirectional Shunt current and output voltage pin; continuous cathode current is limited to -10 mA to 25 mA and continuous cathode voltage to 15 V (absolute maximum), with IZ kept below the recommended maximum of 12 mA.
3 Anode power_in Anode pin, normally grounded, which serves as the reference return for the shunt regulator.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23
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 voltage VREF 1.233 V IZ = 100μA, VZ = 5V, 25°C 9
Reference voltage tolerance -6.2 6.2 mV IZ = 100μA, VZ = 5V, 25°C 9
Reference voltage tolerance -14 14 mV IZ = 100μA, VZ = 5V, full range (–40°C to 85°C) 9
Minimum cathode current IZ,min 45 75 μA 25°C 9
Minimum cathode current IZ,min 80 μA full range (–40°C to 85°C) 9
Reference voltage change with cathode current change ΔVREF/ΔIZ 0.7 1.5 mV IZ,min < IZ < 1mA, 25°C 9
Reference voltage change with cathode current change ΔVREF/ΔIZ 2 mV IZ,min < IZ < 1mA, full range 9
Reference voltage change with cathode current change ΔVREF/ΔIZ 2 4 mV 1mA < IZ < 12mA, 25°C 9
Reference voltage change with cathode current change ΔVREF/ΔIZ 6 mV 1mA < IZ < 12mA, full range 9
Reference voltage change with output voltage change ΔVREF/ΔVKA -1.55 -2 mV/V IZ = 1mA, 25°C 9
Reference voltage change with output voltage change ΔVREF/ΔVKA -2.5 mV/V IZ = 1mA, full range 9
Feedback current IFB 60 100 nA 25°C 9
Feedback current IFB 120 nA full range 9
Average temperature coefficient of reference voltage αVREF -20 20 ppm/°C IZ = 10mA, VZ = 5V, 25°C 9
Average temperature coefficient of reference voltage αVREF -15 15 ppm/°C IZ = 1mA, VZ = 5V, 25°C 9
Average temperature coefficient of reference voltage αVREF -100 100 ppm/°C IZ = 1mA, VZ = 5V, full range 9
Reverse dynamic impedance ZZ 0.3 Ω IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, VZ = VREF, 25°C 9
Reverse dynamic impedance ZZ 2 Ω IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, VZ = 10V, 25°C 9
Wideband noise eN 20 μVRMS IZ = 100μA, VZ = VREF, 10Hz ≤ f ≤ 10kHz, 25°C 9
Long-term stability of reverse breakdown voltage 120 ppm t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100μA 9
Cathode current (recommended) IZ 12 mA 6
Reverse breakdown voltage (adjustable version) VZ 10 V Adjustable version 6
Free-air temperature (LM4041 I temperature) TA -40 85 °C LM4041 (I temperature) 6
Continuous cathode voltage VZ 15 V 5
Continuous cathode current IZ -10 25 mA 5
Operating virtual junction temperature TJ 150 °C 5
Storage temperature range Tstg -65 150 °C 5
Package thermal impedance, DBZ package θJA 206 °C/W DBZ package (SOT-23-3) 5

CAD (KiCad official)

  • Symbol: LM4041CIDBZT
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lm4041cidbzt-etched.step / lm4041cidbzt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4041cidbzt.step / lm4041cidbzt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 efdac4618419c087, retrieved 2026-10-11, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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