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Contents

README

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AP7366EA-18W5-7

Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25

AP7366EA-18W5-7 from Diodes Incorporated, in a SOT-25. 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 IN power_in Voltage input pin, recommended operating input range 2.2V to 6V; bypass to ground through at least 1µF MLCC capacitor.
2 GND power_in Ground pin.
3 EN input Active-high enable input; the device turns on when EN is driven above VIH (min 1.0V) and off when below VIL (max 0.3V), and the EN pin should be tied to IN if the feature is not used.
4 NC unconnected No internal connection; leaving this pin floating does not affect chip functionality.
5 OUT power_out Regulated voltage output pin (1.8V fixed for this variant), up to 600mA; bypass to ground through 1µF MLCC capacitor.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-25
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
Input Voltage (absolute maximum) VIN 6.5 V TA = +25°C 3
ESD Human Body Model ESD HBM 2000 V 3
ESD Charge Device Model ESD CDM -1000 1000 V 3
Storage Temperature Range TST -65 150 °C 3
Maximum Junction Temperature TJ 150 °C 3
Input Voltage (recommended) VIN 2.2 6 V TA = +25°C 3
Output Voltage (recommended) VOUT 0.8 5 V TA = +25°C 3
Output Current (recommended) IOUT 0 600 mA Note 4 3
Operating Ambient Temperature TA -40 85 °C 3
Input Quiescent Current IQ 60 80 μA VEN = VIN, IOUT = 0mA 4
Input Shutdown Current ISHDN -1 0.05 1 μA VEN = 0V, IOUT = 0mA 4
Line Regulation VOUT/VIN/VOUT 0.01 0.1 %/V VIN = (VOUT +1V) to 5.5V, IOUT = 10mA, TA = +25°C 4
Line Regulation VOUT/VIN/VOUT 0.2 %/V VIN = (VOUT +1V) to 5.5V, IOUT = 10mA, -40°C ≤ TA ≤ +85°C 4
Load Regulation (1.2V < VOUT ≤ 3.9V) VOUT/VOUT -1 1 % IOUT = 1mA to 600mA 4
Dropout Voltage VDROPOUT 160 250 mV VOUT = 1.8V, IOUT = 300mA 4
Dropout Voltage VDROPOUT 320 420 mV VOUT = 1.8V, IOUT = 600mA 4
Output Voltage Temperature Coefficient VOUT/TA/VOUT -100 100 ppm/°C IOUT = 100mA, -40°C ≤ TA ≤ +85°C 5
Current Limit ILIMIT 0.66 1 A VIN = VOUT + 1V 4
EN Input Logic Low Voltage VIL 0.3 V VIN = VIN-Min to VIN-Max 4
EN Input Logic High Voltage VIH 1 V VIN = VIN-Min to VIN-Max 4
EN Input Leakage Current IEN -0.1 0.1 μA VIN = 5.5V or VEN = 0V 4
EN Pull-Down Resistor RENPD 3 MΩ 5
Junction-to-Ambient Thermal Resistance (SOT25) θJA 139 °C/W SOT25, Note 7 (JEDEC High-K board, TA = +25°C) 5
Junction-to-Case Thermal Resistance (SOT25) θJC 38.8 °C/W SOT25, Note 7 5

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper reduce noise. For PCB layout, a wide copper trace is required for both IN and GND pins. A lower ESR capacitor type allows the use of less 10

CAD (KiCad official)

  • Symbol: AP7366EA-18W5-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25 (KiCad packages3D, STEP)
  • 3D model files: ap7366ea-18w5-7-etched.step / ap7366ea-18w5-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap7366ea-18w5-7.step / ap7366ea-18w5-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (17 pp, sha256 cff0b035865f030d, 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