component

LTP3333NXF4

Public Made by Adom

by adom

Linearin Linear Voltage Regulators (LDO), DFN1x1-4L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LTP3333NXF4

Linearin · Linear Voltage Regulators (LDO) · DFN1x1-4L

LTP3333NXF4 from Linearin, in a DFN1x1-4L. 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 pin; bypass with a 1μF ceramic capacitor from this pin to ground.
2 GND power_in Ground.
3 EN input Enable control input, active high (high threshold 1.4 V, low threshold 0.4 V); do not leave EN floating.
4 IN power_in Supply input (2.5 V to 6.0 V operating); must be closely decoupled to GND with a 1μF or greater ceramic capacitor.
5 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Linearin
Package DFN1x1-4L
Category Power Management ICs
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage Operation Range VIN 2.5 6 V 6
Dropout Voltage VDROP 190 280 mV VOUT ≥ 2.8 V, IOUT = 300 mA 6
DC Supply Quiescent Current IQ_ON 40 70 µA Active mode: VEN = VIN 6
DC Supply Shutdown Current IQ_OFF 0.01 1 µA VEN = 0V 6
Regulated Output Voltage accuracy VOUT -2 2 % IOUT = 1 mA, -40℃ ≤ TA ≤ 85℃ 6
Output Voltage Line Regulation 0.03 0.2 % VIN = VOUT + 1 V to 5.5 V, IOUT = 10 mA 6
Output Voltage Load Regulation 0.1 0.4 % IOUT from 0 mA to 300 mA 6
EN Low Threshold 0.4 V 6
EN High Threshold 1.4 V 6
EN Pin Input Current IEN 0 0.1 µA 6
IN Voltage -0.3 6.5 V 5
Other Pin Voltage -0.3 V max is VIN + 0.3 V 5
Maximum Load Current 500 mA 5
Operating Junction Temperature -40 125 ℃ 5
Storage Temperature -65 150 ℃ 5
Lead Temperature 300 ℃ Soldering, 10 sec 5
Soft-start Time from Enable to Power On 25 µs 6
Current Limit 300 mA RLOAD = 1 Ω 6
Power Supply Rejection Ratio PSRR 70 dB f = 1 kHz, COUT = 1 μF, IOUT = 20 mA 6
Power Supply Rejection Ratio PSRR 52 dB f = 10 kHz, COUT = 1 μF, IOUT = 30 mA 6
Output Noise 70 µVRMS 10 Hz to100 kHz, IOUT = 200 mA, VOUT = 2.8 V, COUT = 1 μF 6
Output Noise 45 µVRMS 10 Hz to 100 kHz, IOUT = 200 mA, VOUT = 1.2 V, COUT = 1 μF 6
Over-temperature Shutdown Threshold 155 ℃ 6
Over-temperature Shutdown Hysteresis 20 ℃ 6

CAD (KiCad official)

  • Symbol: LTP3333NXF4
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN1x1-4L (KiCad packages3D, STEP)
  • 3D model files: ltp3333nxf4-etched.step / ltp3333nxf4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltp3333nxf4.step / ltp3333nxf4.glb are the bare package body.

Provenance

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

  • Datasheet: Linearin datasheet (15 pp, sha256 c01383e14a2df468, retrieved 2026-10-22, tier: lcsc)
  • 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