component

L7824 24 V Linear Regulator

Public Made by Adom

by adom

Fixed 24 V positive-voltage linear regulator, up to 1.5 A, in the L78xx (7800) series.

regulatorlinearfixedpositivepmicstto-220
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3D Model

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Symbol & Footprint

Schematic Symbol

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Datasheet

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Contents

README

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L7824

STMicroelectronics · Linear Regulator (LDO) · TO-220

The L7824 is a three-terminal fixed positive-voltage regulator from ST's L78xx (7800) series, delivering a stable 24 V output at up to 1.5 A with adequate heat sinking, needing only input and output capacitors.

Pinout

Pin Name Type Function
1 INPUT power_in Unregulated DC input voltage. Absolute maximum V_I = 35 V (for V_O = 5 to 18 V variants) or 40 V (for 20/24 V variants). A 0.33 uF ceramic input capacitor is recommended close to the pin for stability.
2 GROUND power_in Common ground reference. Also serves as the thermal path via the mounting tab on TO-220/TO-220FP/DPAK/D2PAK packages (tab is electrically connected to GROUND).
3 OUTPUT power_out Regulated +24 V DC output, up to 1.5 A with adequate heatsinking. Requires a 0.1 uF output capacitor for transient response; internally current-limited and thermally protected.

Key specifications

Parameter Value
Type Fixed positive linear regulator
Output voltage 24 V
Output current Up to 1.5 A (with heatsink)
Dropout voltage 2 V typ
Package TO-220 (3-lead)
Operating temperature 0 C to 125 C (junction)

CAD (KiCad official)

  • Symbol: l7824.kicad_sym
  • Footprint: l7824.kicad_mod
  • 3D model: TO-220 body from KiCad Package_TO_SOT_THT/TO-220-3_Vertical.
  • 3D model files: l7824-etched.step / l7824-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l7824.step / l7824.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (55 pp, sha256 ccba643d1b7ced87, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF