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LN1121P332MR-G

Public Made by Adom

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NATLINEAR Linear Voltage Regulators (LDO), SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LN1121P332MR-G

NATLINEAR · Linear Voltage Regulators (LDO) · SOT-23-3L

LN1121P332MR-G from NATLINEAR, in a SOT-23-3L. 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 VSS power_in Ground pin; absolute maximum VIN is VSS+6 V and VOUT is limited to VSS-0.3 V to VIN+0.3 V.
2 VOUT power_out Regulated output pin; 3.3 V fixed (±2%) output, needs an output capacitor of 0.1 µF or more, and delivers over 250 mA with VIN ≥ VOUT+1 V.
3 VIN power_in Input supply pin; operating input range is 1.8 V to 6.0 V, with an input capacitor of 1.0 µF or more recommended.

Key specifications

Parameter Value
Manufacturer NATLINEAR
Package SOT-23-3L
Category Power Management ICs
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
Output voltage accuracy VOUT(E)1 -2 2 % VIN=VOUT(S)+1.0 V, IOUT=10 mA; printed VOUT(S)×0.98 to ×1.02 5
Output current IOUT 280 mA VIN≥VOUT(S)+1.0 V 5
Dropout voltage Vdrop 0.12 0.2 V IOUT=40 mA, 2.6 V ≤VOUT(S)≤3.3 V 5
Line regulation ΔVOUT/(ΔVIN·VOUT) 0.05 0.2 %/V VOUT(S)+0.5 V ≤VIN≤5.5 V, IOUT=10 mA 5
Load regulation ΔVOUT 20 40 mV VIN=VOUT(S)+1.0 V, 1.0 mA ≤IOUT ≤50 mA 5
Quiescent current ISS1 0.8 1 1.6 μA VIN=VOUT(S)+1.0 V 5
Input voltage VIN 1.8 6 V 5
Output voltage temperature coefficient ΔVOUT/(ΔTa·VOUT) 100 ppm/℃ VIN=VOUT(S)+1.0 V, IOUT=10 mA, -40°C ≤Ta≤85°C; printed ±100 5
Ripple rejection /PSRR/ 40 dB VIN=VOUT(S)+1.0 V, f=1.0 kHz, Vrip=0.5 Vrms, IOUT=30 mA 5
Short-circuit current Ishort 15 mA VIN=VOUT(S)+1.5 V 5
Current limit Ilim 380 mA VIN=VOUT(S)+1.5 V 5
Input voltage VIN -0.3 6 V VSS-0.3 to VSS+6 3
Output voltage VOUT -0.3 V VSS-0.3 to VIN+0.3 3
Power dissipation PD 250 mW SOT-23-3L 3
Operating temperature Topr -40 85 °C 3
Storage temperature Tstg -40 125 °C 3
Input capacitor CIN 1 µF 1.0µF or more 4
Output capacitor CL 0.1 µF 0.1µF or more (tantalum) 4

CAD (KiCad official)

  • Symbol: LN1121P332MR-G
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: ln1121p332mr-g-etched.step / ln1121p332mr-g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ln1121p332mr-g.step / ln1121p332mr-g.glb are the bare package body.

Provenance

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

  • Datasheet: NATLINEAR datasheet (10 pp, sha256 5106c8ffb8519bec, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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