component
LM4040B20IDCKR
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.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownLM4040B20IDCKR
Texas Instruments · Voltage Reference · SC-70-5
LM4040B20IDCKR 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 | power_in | Reference and ground return connection for shunt regulator; typically connected to ground. |
| 2 | * | input | EMI suppression input pin; must be left floating or connected to anode (pin 1); TI recommends connecting to anode in high-EMI or high-frequency switching noise applications. |
| 3 | CATHODE | bidirectional | Shunt regulation node; connection point for bias current supply and regulated reference voltage output between this pin and anode. |
| 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 |
CAD (KiCad official)
- Symbol:
LM4040B20IDCKR - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files:
lm4040b20idckr-etched.step/lm4040b20idckr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4040b20idckr.step/lm4040b20idckr.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 2026-10-07, 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-4-5-20251001(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).