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MIC5504-1.2YM5-TR

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Microchip Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MIC5504-1.2YM5-TR

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

MIC5504-1.2YM5-TR from Microchip Tech, in a SOT-23-5. 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 VIN power_in Supply input, specified for 2.5V to 5.5V operation (absolute maximum −0.3V to +6V).
2 GND power_in Ground reference pin; the ground pin current is the regulator quiescent current, typically 38 μA at 0 mA load.
3 EN input Active-high enable (high = ON, low = OFF) with logic-low at 0.2V max and logic-high at 1.2V min, and an internal pull-down (typically 4 MΩ) on the MIC5504 so it may be left floating.
4 NC unconnected No connection; the pin is not internally connected.
5 VOUT power_out Regulated output (fixed 1.2V on this part, ±2% accuracy); when disabled, the MIC5504 switches an internal 25 Ω maximum load to discharge the output capacitor.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOT-23-5
Category Power Management (PMIC)
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
Output Voltage Accuracy VOUT -2 2 % Variation from nominal VOUT 3
Output Voltage Accuracy over temperature VOUT -3 3 % Variation from nominal VOUT; -40°C to +125°C 3
Supply Voltage (Operating Ratings) VIN 2.5 5.5 V 3
Enable Voltage (Operating Ratings) VEN 0 V Maximum printed as VIN 3
Supply Voltage (Absolute Maximum) VIN -0.3 6 V 3
Enable Voltage (Absolute Maximum) VEN -0.3 V Maximum printed as VIN 3
ESD Rating 3 kV Note 2: Human body model, 1.5 kΩ in series with 100 pF 3
Line Regulation 0.02 0.3 %/V VIN = VOUT +1V to 5.5V; IOUT = 100 μA 3
Load Regulation 8 40 mV IOUT = 100 μA to 300 mA 3
Dropout Voltage VDO 80 190 mV IOUT = 150 mA 3
Dropout Voltage VDO 160 380 mV IOUT = 300 mA 3
Ground Pin Current IGND 38 55 μA IOUT = 0 mA 3
Ground Pin Current IGND 42 65 μA IOUT = 300 mA 3
Ground Pin Current in Shutdown IGND(SHDN) 0.05 1 μA VEN = 0V 3
Current Limit ILIM 400 630 900 mA VOUT = 0V 3
Auto-Discharge NFET Resistance 25 Ω MIC5502, MIC5504 Only; VEN = 0V; VIN = 3.6V; IOUT = -3 mA 3
Enable Input Voltage Logic-Low VEN 0.2 V Logic-Low 3
Enable Input Voltage Logic-High VEN 1.2 V Logic-High 3
Enable Input Current MIC5503, MIC5504 IEN 0.01 1 μA VEN = 0V 4
Enable Input Current MIC5503, MIC5504 IEN 1.4 2 μA VEN = 5.5V 4
Turn-On Time tON 50 125 μs COUT = 1 μF; IOUT = 150 mA 4
Storage Temperature Range TS -65 150 °C 5
Maximum Junction Temperature Range TJ -40 150 °C 5
Operating Junction Temperature Range TJ -40 125 °C 5
Lead Temperature 260 °C Soldering, 10s 5
Thermal Resistance SOT23-5, junction to air θJA 253 °C/W 5

CAD (KiCad official)

  • Symbol: MIC5504-1.2YM5-TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: mic5504-1-2ym5-tr-etched.step / mic5504-1-2ym5-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mic5504-1-2ym5-tr.step / mic5504-1-2ym5-tr.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (22 pp, sha256 ccd7fb69d1651274, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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