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L7905ACD2T-TR

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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, D2PAK. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)l7905acd2t-trfactory-2.0.0extractor-text
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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L7905ACD2T-TR

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · D2PAK

L7905ACD2T-TR from STMicroelectronics, in a D2PAK. 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 INPUT power_in DC input voltage pin; absolute maximum input voltage is -35 V for output voltages of -5 to -18 V (this -5 V part) or -40 V for the -20/-24 V versions, decoupled with a 2.2 µF input capacitor in the test/application circuit.
2 OUTPUT power_out Regulated negative output voltage pin, nominal -5 V (-4.9 to -5.1 V at TJ=25°C) for the L7905AC, capable of delivering output current up to 1.5 A with adequate heat sinking; stabilized with a 1 µF output capacitor.
3 GND power_in Common ground reference pin for the regulator, shown as GND in the D2PAK pin-connection diagram (labeled GROUND on the TO-220 variant).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package D2PAK
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
Output voltage VO -4.9 -5 -5.1 V TJ = 25°C 7
Output voltage VO -4.8 -5 -5.2 V IO = -5 mA to -1 A, PO ≤ 15 W, VI = -8 to -20 V 7
Line regulation ΔVO 100 mV VI = -7 to -25 V, TJ = 25°C 7
Line regulation ΔVO 50 mV VI = -8 to -12 V, TJ = 25°C 7
Load regulation ΔVO 100 mV IO = 5 mA to 1.5 A, TJ = 25°C 7
Load regulation ΔVO 50 mV IO = 250 to 750 mA, TJ = 25°C 7
Quiescent current Id 3 mA TJ = 25°C 7
Quiescent current change ΔId 0.5 mA IO = 5 mA to 1 A 7
Quiescent current change ΔId 1.3 mA VI = -8 to -25 V 7
Output voltage drift ΔVO/ΔT -0.4 mV/°C IO = 5 mA 7
Output noise voltage eN 100 µV B = 10 Hz to 100 kHz, TJ = 25°C 7
Supply voltage rejection SVR 54 60 dB ΔVI = 10 V, f = 120 Hz 7
Dropout voltage Vd 1.4 V IO = 1 A, TJ = 25°C, ΔVO = 100 mV 7
Short circuit current Isc 2.1 A 7
Short circuit peak current Iscp 2.5 A TJ = 25°C 7
DC input voltage (for VO = -5 to -18 V) VI -35 V for VO = -5 to -18 V 5
Storage temperature range TSTG -65 150 °C 5
Operating junction temperature range TOP 0 125 °C 5
Thermal resistance junction-case (D2PAK) RthJC 3 °C/W D2PAK package 5
Thermal resistance junction-ambient (D2PAK) RthJA 62.5 °C/W D2PAK package 5

CAD (KiCad official)

  • Symbol: L7905ACD2T-TR
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: D2PAK (KiCad packages3D, STEP)
  • 3D model files: l7905acd2t-tr-etched.step / l7905acd2t-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l7905acd2t-tr.step / l7905acd2t-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (22 pp, sha256 2e77f7ddf941c5b2, retrieved 2026-10-21, tier: lcsc)
  • 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