component
LD29150DT33R
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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LD29150DT33R
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)
LD29150DT33R from STMicroelectronics, 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 | VI | power_in | Supply input voltage with typical operating range 4.3 V to 8.8 V and absolute maximum rating of 30 V (automatic shutdown above 14 V). |
| 2 | GND | power_in | Ground return and die substrate connection. |
| 3 | VO | power_out | Regulated output voltage of 3.3 V nominal (3.267 V to 3.333 V, ±1% at 25°C) with maximum output current 1.5 A and typical dropout voltage 0.4 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| 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 |
|---|---|---|---|---|---|---|---|
| DC input voltage | VI | 30 | V | Above 14 V the device is automatically in shut-down (note 1) | 6 | ||
| DC output voltage | VO | -0.3 | 20 | V | Absolute maximum | 6 | |
| Inhibit input voltage | VINH | -0.3 | 20 | V | Absolute maximum | 6 | |
| Storage temperature range | TSTG | -55 | 150 | °C | Absolute maximum | 6 | |
| Operating junction temperature range | TOP | -40 | 125 | °C | Operating junction temperature range | 6 | |
| Output voltage (3.3 V version) | VO | 3.267 | 3.3 | 3.333 | V | IO = 10 mA to 1.5 A, VI = 4.3 to 8.8 V, TJ = -40 to 125 °C (as printed; see review) | 9 |
| Output voltage (3.3 V version), wide limit | VO | 3.234 | 3.366 | V | IO = 10 mA to 1.5 A, VI = 4.3 to 8.8 V, TJ = -40 to 125 °C | 9 | |
| Load regulation | VO | 0.2 | 1 | % | IO = 10 mA to 1.5 A | 9 | |
| Line regulation | VO | 0.06 | 0.5 | % | VI = 4.3 to 13 V | 9 | |
| Supply voltage rejection | SVR | 52 | 67 | dB | f = 120 Hz, VI = 5.31 V, IO = 0.75 A (Note 1) | 9 | |
| Dropout voltage at 0.75 A | VDROP | 0.2 | V | IO = 0.75 A, TJ = -40 to 125 °C (Note 2) | 9 | ||
| Dropout voltage at 1.5 A | VDROP | 0.4 | 0.7 | V | IO = 1.5 A, TJ = -40 to 125 °C (Note 2) | 9 | |
| Dropout voltage at 250 mA | VDROP | 0.1 | V | IO = 250 mA, TJ = -40 to 125 °C (Note 2) | 9 | ||
| Quiescent current at 0.75 A | Iq | 15 | 40 | mA | IO = 0.75 A, TJ = -40 to 125 °C | 9 | |
| Quiescent current at 1.5 A | Iq | 30 | 80 | mA | IO = 1.5 A, TJ = -40 to 125 °C | 9 | |
| Quiescent current in shutdown | Iq | 130 | 180 | µA | VI = 13 V, VINH = GND, TJ = -40 to 125 °C | 9 | |
| Short circuit current | Isc | 2.2 | A | VI - VO = 5.5 V | 9 | ||
| Control input logic low | VIL | 0.8 | V | OFF MODE, TJ = -40 to 125 °C (Note 3) | 9 | ||
| Control input logic high | VIH | 2 | V | ON MODE, TJ = -40 to 125 °C (Note 3) | 9 | ||
| Control input current | IINH | 5 | 10 | µA | TJ = -40 to 125 °C, VINH = 13 V | 9 | |
| Output noise voltage | eN | 132 | µVRMS | BP = 10 Hz to 100 kHz, IO = 100 mA (Note 1) | 9 | ||
| Thermal shutdown | TSHDN | 150 | °C | Thermal shutdown | 9 | ||
| Thermal resistance junction-ambient (DPAK) | RthJA | 100 | °C/W | Junction-ambient, DPAK | 6 | ||
| Thermal resistance junction-case (DPAK) | RthJC | 8 | °C/W | Junction-case, DPAK | 6 |
CAD (KiCad official)
- Symbol:
LD29150DT33R - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
- 3D model files:
ld29150dt33r-etched.step/ld29150dt33r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ld29150dt33r.step/ld29150dt33r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (23 pp, sha256
ad7a2db22d2dee75, retrieved 2026-10-22, 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).
# LD29150DT33R
**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)
LD29150DT33R from STMicroelectronics, 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 | VI | power_in | Supply input voltage with typical operating range 4.3 V to 8.8 V and absolute maximum rating of 30 V (automatic shutdown above 14 V). |
| 2 | GND | power_in | Ground return and die substrate connection. |
| 3 | VO | power_out | Regulated output voltage of 3.3 V nominal (3.267 V to 3.333 V, ±1% at 25°C) with maximum output current 1.5 A and typical dropout voltage 0.4 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| 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 |
|---|---|---|---|---|---|---|---|
| DC input voltage | VI | | | 30 | V | Above 14 V the device is automatically in shut-down (note 1) | 6 |
| DC output voltage | VO | -0.3 | | 20 | V | Absolute maximum | 6 |
| Inhibit input voltage | VINH | -0.3 | | 20 | V | Absolute maximum | 6 |
| Storage temperature range | TSTG | -55 | | 150 | °C | Absolute maximum | 6 |
| Operating junction temperature range | TOP | -40 | | 125 | °C | Operating junction temperature range | 6 |
| Output voltage (3.3 V version) | VO | 3.267 | 3.3 | 3.333 | V | IO = 10 mA to 1.5 A, VI = 4.3 to 8.8 V, TJ = -40 to 125 °C (as printed; see review) | 9 |
| Output voltage (3.3 V version), wide limit | VO | 3.234 | | 3.366 | V | IO = 10 mA to 1.5 A, VI = 4.3 to 8.8 V, TJ = -40 to 125 °C | 9 |
| Load regulation | VO | | 0.2 | 1 | % | IO = 10 mA to 1.5 A | 9 |
| Line regulation | VO | | 0.06 | 0.5 | % | VI = 4.3 to 13 V | 9 |
| Supply voltage rejection | SVR | | 52 | 67 | dB | f = 120 Hz, VI = 5.31 V, IO = 0.75 A (Note 1) | 9 |
| Dropout voltage at 0.75 A | VDROP | | 0.2 | | V | IO = 0.75 A, TJ = -40 to 125 °C (Note 2) | 9 |
| Dropout voltage at 1.5 A | VDROP | | 0.4 | 0.7 | V | IO = 1.5 A, TJ = -40 to 125 °C (Note 2) | 9 |
| Dropout voltage at 250 mA | VDROP | | 0.1 | | V | IO = 250 mA, TJ = -40 to 125 °C (Note 2) | 9 |
| Quiescent current at 0.75 A | Iq | | 15 | 40 | mA | IO = 0.75 A, TJ = -40 to 125 °C | 9 |
| Quiescent current at 1.5 A | Iq | | 30 | 80 | mA | IO = 1.5 A, TJ = -40 to 125 °C | 9 |
| Quiescent current in shutdown | Iq | | 130 | 180 | µA | VI = 13 V, VINH = GND, TJ = -40 to 125 °C | 9 |
| Short circuit current | Isc | | 2.2 | | A | VI - VO = 5.5 V | 9 |
| Control input logic low | VIL | | | 0.8 | V | OFF MODE, TJ = -40 to 125 °C (Note 3) | 9 |
| Control input logic high | VIH | 2 | | | V | ON MODE, TJ = -40 to 125 °C (Note 3) | 9 |
| Control input current | IINH | | 5 | 10 | µA | TJ = -40 to 125 °C, VINH = 13 V | 9 |
| Output noise voltage | eN | | 132 | | µVRMS | BP = 10 Hz to 100 kHz, IO = 100 mA (Note 1) | 9 |
| Thermal shutdown | TSHDN | | 150 | | °C | Thermal shutdown | 9 |
| Thermal resistance junction-ambient (DPAK) | RthJA | | 100 | | °C/W | Junction-ambient, DPAK | 6 |
| Thermal resistance junction-case (DPAK) | RthJC | | 8 | | °C/W | Junction-case, DPAK | 6 |
## CAD (KiCad official)
- Symbol: `LD29150DT33R`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
- 3D model files: `ld29150dt33r-etched.step` / `ld29150dt33r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ld29150dt33r.step` / `ld29150dt33r.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586204275014189056) (23 pp, sha256 `ad7a2db22d2dee75`, retrieved 2026-10-22, 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](docs/ld29150dt33r-datasheet.pdf)