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LD2980ABM33TR

Public Made by Adom

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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

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LD2980ABM33TR

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

LD2980ABM33TR from STMicroelectronics, in a SOT-23-5L. 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 Unregulated DC input supply. Operating range 2.5 V to 16 V; absolute max -0.3 to 16 V. Bypass with a 1 µF input capacitor close to the pin.
2 GND power_in Device ground reference for both the input supply and the regulated output.
3 INHIBIT input TTL-compatible ON/OFF control input. Drive high (VIH >= 1.6 V) to enable the regulator; drive low (VIL <= 0.18 V) to shut it down (<1 µA off-mode current). Not internally pulled-up and must not be left floating; absolute max -0.3 to 16 V.
4 NC unconnected No internal connection. Leave floating or tie to a convenient net; not required for device operation.
5 VOUT power_out Regulated 3.3 V output (LD2980ABM33: 3.284-3.317 V typ. at 1 mA). Guaranteed output current up to 50 mA with internal current and thermal limiting. Requires a 2.2 µF low-ESR ceramic output capacitor for stability.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LD2980ABM33TR
  • LD2980ABM33TRCM33TR
  • LD2980ABM30TR
  • LD2980ABM33TRCM18TR
  • LD2980ABM33TRCM30TR
  • LD2980ABM33TRABM50TR
  • LD2980ABM33TRCM50TR

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating input voltage VOP 2.5 16 V 7
Output voltage (3.3 V version) VO 3.284 3.3 3.317 V IO = 1 mA 7
Output voltage (3.3 V version) VO 3.275 3.325 V IO = 1 to 50 mA 7
Output voltage (3.3 V version) VO 3.217 3.383 V IO = 1 to 50 mA, TJ= -40 to 125°C 7
Line regulation 0.003 0.014 %/V VO(NOM) + 1 < VIN < 16 V, IO = 1 mA 7
Line regulation 0.032 %/V TJ= -40 to 125°C 7
Quiescent current (ON mode) IQ 80 100 µA IO = 0 7
Quiescent current (ON mode) IQ 150 µA IO = 0, TJ= -40 to 125°C 7
Quiescent current (ON mode) IQ 100 150 µA IO = 1 mA 7
Quiescent current (ON mode) IQ 200 µA IO = 1 mA, TJ= -40 to 125°C 7
Quiescent current (ON mode) IQ 175 250 µA IO = 10 mA 7
Quiescent current (ON mode) IQ 450 µA IO = 10 mA, TJ= -40 to 125°C 7
Quiescent current (ON mode) IQ 500 700 µA IO = 50 mA 7
Quiescent current (ON mode) IQ 1200 µA IO = 50 mA, TJ= -40 to 125°C 7
Quiescent current (OFF mode) IQ 0 µA OFF MODE, VINH < 0.18 V 7
Quiescent current (OFF mode) IQ 1 µA OFF MODE, VINH < 0.18 V, TJ= -40 to 125°C 7
Dropout voltage VDROP 1 3 mV IO = 0 7
Dropout voltage VDROP 5 mV IO = 0, TJ= -40 to 125°C 7
Dropout voltage VDROP 7 10 mV IO = 1mA 7
Dropout voltage VDROP 15 mV IO = 1mA, TJ= -40 to 125°C 7
Dropout voltage VDROP 40 60 mV IO = 10mA 7
Dropout voltage VDROP 90 mV IO = 10mA, TJ= -40 to 125°C 7
Dropout voltage VDROP 120 150 mV IO = 50mA 7
Dropout voltage VDROP 225 mV IO = 50mA, TJ= -40 to 125°C 7
Short circuit current ISC 150 mA RL = 0 8
Supply voltage rejection SVR 63 dB CO = 10µF, f = 1kHz 8
Inhibit input logic low VINH 0.18 V LOW = Output OFF, TJ= -40 to 125°C 8
Inhibit input logic high VINL 1.6 V HIGH = Output ON, TJ= -40 to 125°C 8
Inhibit input current IINH -1 0 µA VINH = 0V, TJ= -40 to 125°C 8
Inhibit input current IINH 5 15 µA VINH = 5V, TJ= -40 to 125°C 8
Output noise voltage eN 160 µVRMS BW = 300 Hz to 50 kHz, CO = 10µF 8
Thermal shutdown TSHDN 170 °C 8
DC input voltage VI -0.3 16 V 5
INHIBIT input voltage VINH -0.3 16 V 5
Storage temperature range TSTG -55 150 °C 5
Operating junction temperature range TOP -40 125 °C 5
Thermal resistance junction-case RthJC 81 °C/W 4
Thermal resistance junction-ambient RthJA 255 °C/W 4

CAD (KiCad official)

  • Symbol: LD2980ABM33TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: ld2980abm33tr-etched.step / ld2980abm33tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ld2980abm33tr.step / ld2980abm33tr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ld2980abm33tr.step 85 KB You want the bare part, or you mark your own boards.
ld2980abm33tr-etched.step 2.7 MB You want the part with LD2980ABM33TR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 644 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (22 pp, sha256 38bf5b337c2cb448, retrieved 2026-08-17, tier: manufacturer)
  • 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