component
LM7905CT
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. 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
markdownLM7905CT
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220
LM7905CT from Texas Instruments, in a TO-220. 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 | GND | power_in | Ground/common reference pin; low ground-pin current (quiescent current 1 mA typ, 2 mA max at TJ=25°C) allows the output voltage to be boosted above the preset value with an external resistor divider. |
| 2 | INPUT | power_in | Unregulated negative supply input; absolute maximum input voltage is −25V for the −5V output version, and a 2.2µF input bypass capacitor (solid tantalum, or 25µF aluminum electrolytic) is recommended if the regulator is more than 3" from the raw supply filter capacitor. |
| 3 | OUTPUT | power_out | Regulated −5V output (−4.8V to −5.2V at TJ=25°C), rated for 1.5A continuous output current (2.2A peak) and requiring a 1µF output capacitor (solid tantalum) for stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-220 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM7905CT - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
lm7905ct-etched.step/lm7905ct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm7905ct.step/lm7905ct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (14 pp, sha256
392f4584b1435508, retrieved 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-5(text+vision), consensusclaude-opus-4-8(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).