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SPX1117M3-L-2-5

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MaxLinear Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SPX1117M3-L-2-5

MaxLinear · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

SPX1117M3-L-2-5 from MaxLinear, in a SOT-223-3. 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 GND power_in Ground reference pin for the fixed 2.5V version (labelled ADJ/GND; it is the ADJ pin only on the adjustable version).
2 VOUT power_out Regulated 2.5V output (±2% over temperature, 800mA guaranteed), needs at least 2.2µF ceramic/tantalum output capacitor; the tab is also connected to VOUT.
3 VIN power_in Unregulated input supply, 20V absolute maximum, with 3.9V to 10V specified for the 2.5V version.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SOT-223-3
Category Power Management (PMIC)
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 (2.5V version, over temperature) VOUT 2.45 2.55 V 5mA≤IOUT≤800mA, 3.9V≤VIN≤10V 2
Output Voltage (2.5V version, TJ=25°C) VOUT 2.475 2.5 2.525 V IOUT=5mA, VIN=4.0V, TJ=25°C 2
Reference Voltage (over temperature) VREF 1.225 1.27 V 5mA≤IOUT≤800mA, 1.4V≤(VIN-VOUT)≤10V 2
Reference Voltage (TJ=25°C) VREF 1.238 1.25 1.262 V IOUT=5mA, (VIN, VOUT)=2V, TJ=25°C 2
Line Regulation 3 7 mV VINMIN≤VIN≤12V, VOUT = Fixed/Adj., IOUT=5mA 2
Load Regulation 6 12 mV 5mA≤IOUT≤800mA, VOUT = Fixed/Adj. 2
Dropout Voltage at 100mA 1 1.2 V IOUT=100mA 2
Dropout Voltage at 500mA 1.05 1.25 V IOUT=500mA 2
Dropout Voltage at 800mA 1.1 1.3 V IOUT=800mA 2
Quiescent Current 5 10 mA 4.25V≤VIN≤6.5V 2
Adjust Pin Current 50 120 µA 2
Current Limit 1 1.5 2 A (VIN, VOUT)=5V 2
Thermal Regulation 0.01 0.1 %/W 25°C, 30ms pulse 2
Ripple Rejection 60 75 dB fRIPPLE=120Hz, (VIN, VOUT)=2V, VRIPPLE=1VPP 2
Input Supply Voltage 20 V 2
Operating Junction Temperature Range TJ -40 125 °C 2
Storage Temperature -65 150 °C 2
Lead Temperature (Soldering) 260 °C Soldering, 5 sec 2
ESD Rating (HBM) 2 kV HBM - Human Body Model 2
Thermal Resistance, Junction to Tab 15 °C/W SOT-223 package 6
Thermal Resistance, Tab to Ambient 31 °C/W SOT-223 package 6
Thermal Resistance, Junction to Ambient 46 °C/W Table 1, 2500 mm² topside and 2500 mm² backside copper 8

CAD (KiCad official)

  • Symbol: SPX1117M3-L-2-5
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3 (KiCad packages3D, STEP)
  • 3D model files: spx1117m3-l-2-5-etched.step / spx1117m3-l-2-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spx1117m3-l-2-5.step / spx1117m3-l-2-5.glb are the bare package body.

Provenance

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

  • Datasheet: MaxLinear datasheet (11 pp, sha256 0156e5e2a82dff86, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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