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Contents

README

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AP62201WU-7

Diodes Incorporated · DC-DC Converters · TSOT-23-6

AP62201WU-7 from Diodes Incorporated, in a TSOT-23-6. 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 Power ground for the regulator, to which the input and output capacitors return and which should be connected to the GND plane with many vias for heat dissipation.
2 SW power_out Power switching output that is the switching node supplying power to the output, with the output LC filter connected from SW to the load.
3 VIN power_in Power input that supplies the IC and the step-down power MOSFETs and must be driven from a 4.2V to 18V source and bypassed to GND with a suitably large capacitor.
4 FB input Feedback sensing terminal for the output voltage, connected to the output resistive divider, with the regulation reference at 0.8V for AP62201.
5 EN input Enable input that turns the regulator on when driven above its 1.2V precision threshold and off when driven low, and can be left floating for automatic startup while also setting the UVLO thresholds.
6 BST input High-side gate drive boost input that supplies the high-side N-channel MOSFET driver, with a 100nF capacitor recommended from BST to SW.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TSOT-23-6
Category Power Management (PMIC)
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Recommended VIN Supply Voltage VIN 4.2 18 V 4
Recommended Output Voltage VOUT 0.8 7 V 4
Recommended Operating Junction Temperature TJ -40 125 °C 4
VIN Supply Pin Voltage VIN -0.3 20 V DC 4
VIN Supply Pin Voltage VIN -0.3 22 V 400ms 4
Switch Pin Voltage VSW -1 V DC; max printed as VIN + 0.3 4
Switch Pin Voltage VSW -2.5 V 20ns; max printed as VIN + 2.0 4
Enable/UVLO Pin Voltage VEN -0.3 8 V 4
Feedback Pin Voltage VFB -0.3 6 V 4
Storage Temperature TSTG -65 150 °C 4
Junction Temperature TJ 160 °C 4
Lead Temperature TL 260 °C 4
ESD Human Body Model HBM -2000 2000 V Human Body Model (printed ±2000 V) 4
ESD Charged Device Model CDM -500 500 V Charged Device Model (printed ±500 V) 4
VIN Power-on Reset Rising Threshold POR 3.9 4.15 V 5
Feedback Voltage (AP62201 variant) VFB 0.792 0.8 0.808 V TA = +25°C, CCM 5
Feedback Voltage (AP62201 variant) VFB 0.784 0.8 0.816 V AP62200/AP62201: CCM 5
LS Valley Current Limit IVALLEY_LIMIT 2 2.4 2.8 A From Source to Drain 5
EN Logic High Threshold VEN_H 1.2 1.25 V 5
EN Logic Low Threshold VEN_L 1.04 1.1 V 5
EN Input Current IEN 1 1.5 2 μA VEN = 1V 5
Junction to Ambient Thermal Resistance (TSOT26) θJA 70 °C/W TSOT26 (Standard), FR-4 two-layer PCB, 2oz copper, minimum recommended pad layout 4
Junction to Case Thermal Resistance (TSOT26) θJC 12 °C/W TSOT26 (Standard) 4

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: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208  Weight: 0.003 grams (Approximate) 22

CAD (KiCad official)

  • Symbol: AP62201WU-7
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ap62201wu-7-etched.step / ap62201wu-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap62201wu-7.step / ap62201wu-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (23 pp, sha256 33d13b59c3ae9208, 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