component
LD39030DTPU33R
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN-4(1x1). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LD39030DTPU33R
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4(1x1)
LD39030DTPU33R from STMicroelectronics, in a DFN-4(1x1). 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; the datasheet recommends an output ceramic capacitor of at least 0.47 µF for stability over all operating conditions. |
| 2 | GND | power_in | Common ground pin; all voltages are referred to GND, and the thermal pad must also be connected to GND on the PCB. |
| 3 | EN | input | Enable logic input where Low shuts the regulator down and High makes it active; the datasheet gives VEN low max 0.4 V and high min 1 V. |
| 4 | IN | power_in | Input voltage pin with an operating range of 1.5 V to 5.5 V, where a minimum 1 µF input capacitor should be placed as close as possible to the pin. |
| 5 | GND | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DFN-4(1x1) |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LD39030DTPU33R - Footprint:
Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm - 3D model: DFN-4(1x1) (KiCad packages3D, STEP)
- 3D model files:
ld39030dtpu33r-etched.step/ld39030dtpu33r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ld39030dtpu33r.step/ld39030dtpu33r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (20 pp, sha256
a2b5156495f62dfd, retrieved 2026-10-11, 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).
# LD39030DTPU33R
**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4(1x1)
LD39030DTPU33R from STMicroelectronics, in a DFN-4(1x1). 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; the datasheet recommends an output ceramic capacitor of at least 0.47 µF for stability over all operating conditions. |
| 2 | GND | power_in | Common ground pin; all voltages are referred to GND, and the thermal pad must also be connected to GND on the PCB. |
| 3 | EN | input | Enable logic input where Low shuts the regulator down and High makes it active; the datasheet gives VEN low max 0.4 V and high min 1 V. |
| 4 | IN | power_in | Input voltage pin with an operating range of 1.5 V to 5.5 V, where a minimum 1 µF input capacitor should be placed as close as possible to the pin. |
| 5 | GND | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DFN-4(1x1) |
| Category | Power Management (PMIC) |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `LD39030DTPU33R`
- Footprint: `Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm`
- 3D model: DFN-4(1x1) (KiCad packages3D, STEP)
- 3D model files: `ld39030dtpu33r-etched.step` / `ld39030dtpu33r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ld39030dtpu33r.step` / `ld39030dtpu33r.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/8590907713247797249) (20 pp, sha256 `a2b5156495f62dfd`, retrieved 2026-10-11, 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](docs/ld39030dtpu33r-datasheet.pdf)