component
LP2950ACZ-5.0
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. 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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Contents
README
markdownLP2950ACZ-5.0
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3
LP2950ACZ-5.0 from Texas Instruments, in a TO-92-3. 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 | OUT | power_out | Regulated output voltage pin of the LP2950 TO-92 (LP) package. |
| 2 | GND | power_in | Ground reference pin of the LP2950 TO-92 (LP) package. |
| 3 | IN | power_in | Input supply voltage pin, which the datasheet rates from 2.3 V to 30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-92-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input supply voltage, SHUTDOWN input voltage, error comparator output voltage | -0.3 | 30 | V | Footnote 3: may exceed input supply voltage | 5 | ||
| FEEDBACK input voltage | -1.5 | 30 | V | Footnote 4: diode-clamp to ground in dual-supply systems | 5 | ||
| Junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 5 | ||
| Maximum input supply voltage | 30 | V | 5 | ||||
| Junction temperature, LP2950AC-XX | TJ | -40 | 125 | °C | Recommended operating range | 5 | |
| Output voltage | VOUT | 4.975 | 5 | 5.025 | V | TJ = 25°C | 7 |
| Output voltage | VOUT | 4.95 | 5 | 5.05 | V | −25°C ≤ TJ ≤ 85°C | 7 |
| Output voltage | VOUT | 4.94 | 5 | 5.06 | V | Full operating temperature range | 7 |
| Output voltage | VOUT | 4.925 | 5 | 5.075 | V | 100 µA ≤ IL ≤ 100 mA, TJ ≤ TJMAX | 7 |
| Output voltage temperature coefficient | 20 | 100 | ppm/°C | −40°C ≤ TJ ≤ 125°C | 7 | ||
| Line regulation | 0.03 | 0.11 | % | (VONOM + 1 V) ≤ Vin ≤ 30 V | 7 | ||
| Load regulation | 0.04 | 0.1 | % | 100 µA ≤ IL ≤ 100 mA | 7 | ||
| Dropout voltage | 50 | 80 | mV | IL = 100 µA | 8 | ||
| Dropout voltage | 150 | mV | IL = 100 µA, −40°C ≤ TJ ≤ 125°C | 8 | |||
| Dropout voltage | 380 | 450 | mV | IL = 100 mA | 8 | ||
| Dropout voltage | 600 | mV | IL = 100 mA, −40°C ≤ TJ ≤ 125°C | 8 | |||
| Ground current | 75 | 120 | µA | IL = 100 µA | 8 | ||
| Ground current | 140 | µA | IL = 100 µA, −40°C ≤ TJ ≤ 125°C | 8 | |||
| Ground current | 8 | 12 | mA | IL = 100 mA | 8 | ||
| Ground current | 14 | mA | IL = 100 mA, −40°C ≤ TJ ≤ 125°C | 8 | |||
| Dropout ground current | 110 | 170 | µA | VIN = (VONOM − 0.5 V), IL = 100 µA | 8 | ||
| Dropout ground current | 200 | µA | VIN = (VONOM − 0.5 V), IL = 100 µA, −40°C ≤ TJ ≤ 125°C | 8 | |||
| Current limit | 160 | 200 | mA | VOUT = 0 V | 8 | ||
| Current limit | 220 | mA | VOUT = 0 V, −40°C ≤ TJ ≤ 125°C | 8 | |||
| Thermal regulation | 0.05 | 0.2 | %/W | 50 mA load pulse at VIN = 30 V (1.25-W pulse) for T = 10 ms | 8 | ||
| Output leakage current | 0.01 | 1 | µA | VOH = 30 V | 9 | ||
| Output leakage current | 2 | µA | VOH = 30 V, −40°C ≤ TJ ≤ 125°C | 9 | |||
| Output low voltage | 150 | 250 | mV | VIN = (VONOM − 0.5 V), IOL = 400 µA | 9 | ||
| Output low voltage | 400 | mV | VIN = (VONOM − 0.5 V), IOL = 400 µA, −40°C ≤ TJ ≤ 125°C | 9 | |||
| Upper threshold voltage | 40 | 60 | mV | See note 12 | 9 | ||
| Lower threshold voltage | 75 | 95 | mV | See note 12 | 9 | ||
| Logic voltage High (Regulator OFF) | 2 | V | −40°C ≤ TJ ≤ 125°C | 9 | |||
| Shutdown pin input current | 30 | 50 | µA | VShutdown = 2.4 V | 9 | ||
| Shutdown pin input current | 100 | µA | VShutdown = 2.4 V, −40°C ≤ TJ ≤ 125°C | 9 | |||
| Shutdown pin input current | 450 | 600 | µA | VShutdown = 30 V | 9 | ||
| Shutdown pin input current | 750 | µA | VShutdown = 30 V, −40°C ≤ TJ ≤ 125°C | 9 | |||
| Regulator output current in shutdown | 3 | 10 | µA | VSHUTDOWN ≥ 2 V, VIN ≤ 30 V, VOUT = 0, FEEDBACK tied to VTAP | 9 | ||
| Regulator output current in shutdown | 20 | µA | −40°C ≤ TJ ≤ 125°C | 9 | |||
| Junction-to-ambient thermal resistance (RθJA) | RθJA | 157.4 | °C/W | TO-92 (LP) 3 pins, High-K board | 6 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 81.2 | °C/W | TO-92 (LP) 3 pins | 6 | ||
| Junction-to-board thermal resistance | RθJB | 153.6 | °C/W | TO-92 (LP) 3 pins | 6 | ||
| Junction-to-top characterization parameter | ψJT | 25.2 | °C/W | TO-92 (LP) 3 pins | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | capacitor, and to the LDO ground pin as close to each other as possible, connected by a wide, component-side, copper surface. The use of vias and long traces to create LDO circuit connections is stron | 32 |
CAD (KiCad official)
- Symbol:
LP2950ACZ-5.0 - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
lp2950acz-5-0-etched.step/lp2950acz-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2950acz-5-0.step/lp2950acz-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (62 pp, sha256
b9e1f8851a20b9c9, retrieved 2026-11-05, tier: manufacturer) - 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).