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LP2950ACDT-3.3RG
Public Made by Adomby adom
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.
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
markdownLP2950ACDT-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2950acdt-3-3rg.step/lp2950acdt-3-3rg.glbare 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, primaryclaude-haiku-5-5(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).