component

LP3980H-33B5F

Public Unreviewed

by Ray

LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmiclp3980h-33b5f
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

PCB Footprint

Open full view ↗
Loads on click. Unloads when scrolled away or the tab is hidden.

Datasheet

Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Download PDF
Contents

README

markdown

LP3980H-33B5F

LOWPOWER · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

LP3980H-33B5F from LOWPOWER, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Power input, 1.6 V to 5.5 V. Bypass to GND with a >=1 uF ceramic or tantalum capacitor located within 0.5 inch of the pin. Absolute maximum -0.3 V to 6 V.
2 GND power_in Device ground. Return the input and output bypass capacitors to a clean analog ground here.
3 EN input Active-high enable. Drive >=1.4 V to turn the LDO on, <=0.4 V to place it in shutdown (<1 uA standby). Absolute maximum -0.3 V to 6 V. Tie to VIN for always-on operation. Do not float.
4 NC unconnected No connect on fixed-output variants (LP3980H-33B5F is a fixed 3.3 V option). This pin serves as the FB feedback input only on the adjustable LP3980A variant.
5 VOUT power_out Regulated 3.3 V output, up to 500 mA (LP3980H). Requires >=1 uF ceramic output capacitor (ESR up to ~25 mΩ) placed within 0.5 inch of the pin for stability. Absolute maximum -0.3 V to (VIN + 0.3 V).

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LP3980H-33B5F
  • LP3980H-33B5FB3
  • LP3980H-33B5FB3F
  • LP3980H-33B5FQV
  • LP3980H-33B5FQVF

CAD (KiCad official)

  • Symbol: LP3980H-33B5F
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LOWPOWER datasheet (10 pp, sha256 0f516d8650bfc1bf, retrieved 2026-08-17, 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