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AP7351D-18W5-7

Public Made by Adom

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Diodes Incorporated Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AP7351D-18W5-7

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

AP7351D-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 VIN power_in Power input pin; the datasheet gives an input voltage range of 1.4V to 5.5V and an absolute maximum of 6.0V.
2 GND power_in Ground pin that should be connected to the external circuit ground to reduce trace-impedance voltage drop.
3 EN input Enable pin that must be driven high or low and must not float; high enables the regulator and low puts it into shutdown.
4 NC unconnected No connection for fixed VOUT versions.
5 VOUT power_out Regulated output voltage pin; output current is guaranteed up to 150mA.

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 VIN 1.4 5.5 V TA = -40°C to +85°C 3
Output Voltage Accuracy (VOUT ≤ 2.0V, TA = +25°C) -40 40 mV VOUT ≤ 2.0V, IOUT = 5mA, TA = +25°C 3
Output Voltage Accuracy (VOUT ≤ 2.0V, TA = -40°C to +85°C) -80 80 mV VOUT ≤ 2.0V, IOUT = 5mA, TA = -40°C to +85°C 3
Line Regulation ∆VOUT/∆VIN/VOUT 0.05 0.2 %/V MAX (VOUT + 1.0V, 2.5V) ≤ VIN ≤ 5.5V (All Versions Except 4.5V) 3
Dropout Voltage (Note 8) 0.33 0.6 V IOUT = 150mA, VOUT = 1.8V 3
Quiescent Current (Note 7) 0.5 1 µA IOUT = 0mA 3
Standby Current ISTANDBY 0.02 0.2 µA Set EN low, No load 3
EN Input Low Voltage 0.4 V 3
EN Input High Voltage 1 5.5 V 3
Input Voltage (recommended operating) VIN 1.4 5.5 V 2
Output Current (recommended operating) IOUT 0 150 mA 2
Operating Ambient Temperature (recommended operating) TA -40 85 °C 2
Input Voltage VIN 6 V 2
Input Voltage for EN Pin VEN 6 V 2
Output Voltage VOUT -0.3 V Printed as -0.3 to VIN + 0.3 V; upper limit is VIN + 0.3 V 2
Power Dissipation PD 400 mW 2
Operating Ambient Temperature (absolute maximum) TA -40 85 °C 2
Operating Junction Temperature TJ 125 °C 2
Storage Temperature TSTG -55 125 °C 2
ESD HBM Human Body Model ESD HBM 2 kV Printed as > 2 kV 2
ESD CDM Charge Device Model ESD CDM -500 500 V Printed as ±500 V 2
Load Regulation ∆VOUT/∆IOUT 30 mV 1mA ≤ IOUT ≤ 150mA (all versions except 4.5V) 3
Short Circuit Current Limit (Note 6) 60 mA VOUT = 0V 3
Output Current 150 mA 3
Thermal Resistance Junction to Ambient (SOT25) θJA 179 °C/W SOT25 3

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 tin • Terminals:  SOT25: Finish - Mate Tin Plated Leads, Solderable per MIL￾STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: AP7351D-18W5-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25 (KiCad packages3D, STEP)
  • 3D model files: ap7351d-18w5-7-etched.step / ap7351d-18w5-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap7351d-18w5-7.step / ap7351d-18w5-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (18 pp, sha256 4cd3008f2ae9a291, retrieved 2026-11-02, tier: manufacturer)
  • 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