component
LM4040D20IDCKR
Public Made by Adomby adom
Texas Instruments Voltage Reference, SC-70-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LM4040D20IDCKR
Texas Instruments · Voltage Reference · SC-70-5
LM4040D20IDCKR 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 | General-purpose anode pin, normally connected to ground, and the return terminal of the shunt reference. |
| 2 | * | input | Must be left floating or connected to the anode; TI recommends connecting it to the anode in applications with high EMI or significant high-frequency switching noise. |
| 3 | CATHODE | bidirectional | Parallel current/voltage input at the cathode, which must be supplied with at least IZ,min to regulate; absolute maximum continuous cathode current is 25 mA (-10 mA minimum), and the recommended maximum is 15 mA. |
| 4 | NC | unconnected | No internal connection; the pin is not connected inside the device. |
| 5 | NC | unconnected | No internal connection; the pin is not connected inside the device. |
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 (25°C) | ΔVZ | -20 | 20 | mV | IZ = 100μA, 25°C | 7 | |
| Reverse breakdown voltage tolerance (full range) | ΔVZ | -40 | 40 | mV | IZ = 100μA, 完整范围 | 7 | |
| Minimum cathode current | IZ,min | 45 | 75 | μA | 25°C | 7 | |
| Minimum cathode current (full range) | IZ,min | 80 | μA | 完整范围 | 7 | ||
| Average temperature coefficient of VZ | αVZ | -20 | 20 | ppm/°C | IZ = 10mA, 25°C | 7 | |
| Average temperature coefficient of VZ | αVZ | -15 | 15 | ppm/°C | IZ = 1mA, 25°C | 7 | |
| Average temperature coefficient of VZ | αVZ | -150 | 150 | ppm/°C | 完整范围 | 7 | |
| Change in VZ with cathode current | VZ | 0.3 | 1 | mV | IZ,min < IZ < 1mA, 25°C | 7 | |
| Change in VZ with cathode current (full range) | VZ | 1.2 | mV | IZ,min < IZ < 1mA, 完整范围 | 7 | ||
| Change in VZ with cathode current | VZ | 2.5 | 8 | mV | 1mA < IZ < 15mA, 25°C | 7 | |
| Change in VZ with cathode current (full range) | VZ | 10 | mV | 1mA < IZ < 15mA, 完整范围 | 7 | ||
| Reverse dynamic impedance | ZZ | 0.3 | 1.1 | Ω | IZ = 1mA, f = 120Hz, IAC = 0.1IZ, 25°C | 7 | |
| Continuous cathode current | IZ | -10 | 25 | mA | 5 | ||
| Operating junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 5 | ||
| Cathode current | IZ | 15 | mA | 5 | |||
| Natural-ventilation operating temperature (LM4040xxxI) | TA | -40 | 85 | °C | LM4040xxxI | 5 | |
| Junction-to-ambient thermal resistance (DCK, 5-pin) | RθJA | 252 | °C/W | 5 |
CAD (KiCad official)
- Symbol:
LM4040D20IDCKR - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files:
lm4040d20idckr-etched.step/lm4040d20idckr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4040d20idckr.step/lm4040d20idckr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (62 pp, sha256
68faec55d71e5cd5, 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, 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).