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LD39020ADTPU30R

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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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LD39020ADTPU30R

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4(1x1)

LD39020ADTPU30R 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 output Output voltage regulated at 3.0 V ±0.5% with 200 mA maximum current capability and typical 200 mV dropout at full load.
2 GND power_in Common ground for signal return path.
3 EN input Logic input for enable/shutdown: Low (≤0.4 V) puts device in shutdown; High (≥1 V) activates regulation with 20 µA typical quiescent current at no load.
4 IN power_in Input supply voltage 1.5 V to 5.5 V requiring 1 µF minimum external ceramic capacitor (X5R or X7R type).
5 Thermal pad 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: LD39020ADTPU30R
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN-4(1x1) (KiCad packages3D, STEP)
  • 3D model files: ld39020adtpu30r-etched.step / ld39020adtpu30r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ld39020adtpu30r.step / ld39020adtpu30r.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (30 pp, sha256 e4097fa7d6a209f5, retrieved 2026-10-03, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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