component
LM4041BIDBZT
Public Made by Adomby adom
Texas Instruments 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
markdownLM4041BIDBZT
Texas Instruments · Voltage Reference · SOT-23-3
LM4041BIDBZT from Texas Instruments, 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 | FB | input | Feedback pin for setting the adjustable output voltage (adjustable version, LM4041xI); the output is set by an external resistor divider between 1.225 V and 10 V. |
| 2 | Cathode | bidirectional | Shunt current and output voltage pin of the reference, which sinks the regulated shunt current and presents the output voltage. |
| 3 | Anode | power_in | Anode pin, normally grounded (datasheet labels this pin as output; it is the return terminal of the shunt reference). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| 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 voltage tolerance | -2.5 | 2.5 | mV | IZ = 100μA, VZ = 5V, TA = 25°C | 9 | ||
| Reference voltage tolerance | -10.5 | 10.5 | mV | IZ = 100μA, VZ = 5V, full range TA = –40°C to 85°C | 9 | ||
| Minimum cathode current | IZ,min | 45 | 75 | μA | TA = 25°C | 9 | |
| Minimum cathode current | IZ,min | 80 | μA | full range TA = –40°C to 85°C | 9 | ||
| Reference voltage change with cathode current change | ΔVREF/ΔIZ | 0.7 | 1.5 | mV | IZ,min < IZ < 1mA, TA = 25°C | 9 | |
| Reference voltage change with cathode current change | ΔVREF/ΔIZ | 2 | mV | IZ,min < IZ < 1mA, full range TA = –40°C to 85°C | 9 | ||
| Reference voltage change with cathode current change | ΔVREF/ΔIZ | 2 | 4 | mV | 1mA < IZ < 12mA, TA = 25°C | 9 | |
| Reference voltage change with cathode current change | ΔVREF/ΔIZ | 6 | mV | 1mA < IZ < 12mA, full range TA = –40°C to 85°C | 9 | ||
| Reference voltage change with output voltage change | ΔVREF/ΔVKA | -1.55 | -2 | mV/V | IZ = 1mA, TA = 25°C | 9 | |
| Reference voltage change with output voltage change | ΔVREF/ΔVKA | -2.5 | mV/V | IZ = 1mA, full range TA = –40°C to 85°C | 9 | ||
| Feedback current | IFB | 60 | 100 | nA | TA = 25°C | 9 | |
| Feedback current | IFB | 120 | nA | full range TA = –40°C to 85°C | 9 | ||
| Average temperature coefficient of reference voltage | αVREF | -20 | 20 | ppm/°C | IZ = 10mA, VZ = 5V, TA = 25°C | 9 | |
| Average temperature coefficient of reference voltage | αVREF | -15 | 15 | ppm/°C | IZ = 1mA, VZ = 5V, TA = 25°C | 9 | |
| Average temperature coefficient of reference voltage | αVREF | -100 | 100 | ppm/°C | full range TA = –40°C to 85°C (current not stated in row) | 9 | |
| Reference voltage | VREF | 1.233 | V | IZ = 100μA, VZ = 5V, TA = 25°C | 9 | ||
| Reverse dynamic impedance | ZZ | 0.3 | Ω | IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, VZ = VREF, TA = 25°C | 9 | ||
| Reverse dynamic impedance | ZZ | 2 | Ω | IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, VZ = 10V, TA = 25°C | 9 | ||
| Wideband noise | eN | 20 | μVRMS | IZ = 100μA, VZ = VREF, 10Hz ≤ f ≤ 10kHz, TA = 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 | IZ | 12 | mA | 6 | |||
| Reverse breakdown voltage (adjustable version) | VZ | 10 | V | 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 | 5 |
CAD (KiCad official)
- Symbol:
LM4041BIDBZT - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
lm4041bidbzt-etched.step/lm4041bidbzt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4041bidbzt.step/lm4041bidbzt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
efdac4618419c087, retrieved 2026-10-10, 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, 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).