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LP2950ACDT-3.3RG

Public Made by Adom

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onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LP2950ACDT-3.3RG

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)

LP2950ACDT-3.3RG from onsemi, in a TO-252-2(DPAK). 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 Unregulated supply input; the datasheet gives a low input-to-output differential of 50 mV at 100 µA and 380 mV at 100 mA.
2 Ground power_in Ground reference pin, which is also electrically connected to the DPAK heatsink surface (shown as terminal 4 in the case outline).
3 Output power_out Regulated output, preset to 3.3 V with ±0.5% initial tolerance for the 'A' suffix device, with output current capability in excess of 100 mA.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-252-2(DPAK)
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, 3.3 V version, Vin = 4.3 V, IO = 100 µA, TA = 25°C (LP2950AC-3.3) VO 3.284 3.3 3.317 V Vin = 4.3 V, IO = 100 µA, TA = 25°C 5
Output Voltage, 3.3 V version, TA = −40 to +125°C (LP2950AC-3.3) VO 3.26 3.34 V Vin = 4.3 V, IO = 100 µA, TA = −40 to +125°C 5
Output Voltage, 3.3 V version, line and load (LP2950AC-3.3) VO 3.254 3.346 V Vin = 4.3 to 30 V, IO = 100 µA to 100 mA, TA = −40 to +125°C 5
Line Regulation (AC variant) Regline 0.04 0.1 % Vin = VO(nom) +1.0 V to 30 V 6
Load Regulation (AC variant) Regload 0.05 0.1 % IO = 100 µA to 100 mA 6
Dropout Voltage VI − VO 30 80 mV IO = 100 µA 6
Dropout Voltage VI − VO 350 450 mV IO = 100 mA 6
Supply Bias Current ICC 93 120 µA IO = 100 µA 6
Supply Bias Current ICC 4 12 mA IO = 100 mA 6
Dropout Supply Bias Current ICCdropout 110 170 µA Vin = VO(nom) − 0.5 V, IO = 100 µA 6
Current Limit ILimit 220 300 mA VO shorted to ground 6
Thermal Regulation Regthermal 0.05 0.2 %/W 6
Input Voltage VCC 30 Vdc 4
Peak Transient Input Voltage VCC 32 Vdc t < 300 ms 4
Operating Ambient Temperature Range TA -40 125 °C 4
Maximum Die Junction Temperature Range TJ 150 °C 4
Storage Temperature Range Tstg -65 150 °C 4
Thermal Resistance, Junction-to-Ambient (DPAK, DT suffix) RθJA 92 °C/W Case 369A (DPAK) DT Suffix (Note 1) 4
Thermal Resistance, Junction-to-Case (DPAK, DT suffix) RθJC 6 °C/W Case 369A (DPAK) DT Suffix 4

CAD (KiCad official)

  • Symbol: LP2950ACDT-3.3RG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: lp2950acdt-3-3rg-etched.step / lp2950acdt-3-3rg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp2950acdt-3-3rg.step / lp2950acdt-3-3rg.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (26 pp, sha256 6194aa27c9ec0c37, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF