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AP3211KTR-G1

Public Made by Adom

by adom

Diodes Incorporated DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs ap3211ktr-g1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
ap3211ktr-g1-etched.fit.json ap3211ktr-g1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap3211ktr-g1-etched.glb ap3211ktr-g1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap3211ktr-g1-etched.step ap3211ktr-g1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ap3211ktr-g1.glb Publish 0.1.0 · Ray 2mo ago
ap3211ktr-g1.kicad_mod Publish 0.1.0 · Ray 2mo ago
ap3211ktr-g1.kicad_sym Publish 0.1.0 · Ray 2mo ago
ap3211ktr-g1.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray 2mo ago
ap3211ktr-g1.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json ap3211ktr-g1: specified limits as data (metadata.characteristics, 26 rows from the datasheet) · Ray 19d ago
README.md ap3211ktr-g1: specified limits as data (metadata.characteristics, 26 rows from the datasheet) · Ray 19d ago

AP3211KTR-G1

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

AP3211KTR-G1 from Diodes Incorporated, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BS passive Bootstrap pin. A bootstrap capacitor (typ. 10nF) is connected between BS and SW to generate the gate-drive rail for the internal high-side NMOS switch. Absolute-max voltage is VSW + 6V.
2 GND power_in Device ground return pin.
3 FB input Feedback pin. Connect to an external resistor divider from VOUT to set the output voltage; regulates to VFB = 0.81V (typ). If VFB exceeds ~20% above nominal (~0.972V) OVP triggers; if VFB < 0.25V the oscillator frequency is folded back (~460kHz) for short-circuit protection. Absolute max -0.3V to 6V.
4 EN input Enable/control input. Drive above 1.5V to enable the IC; drive below 0.4V to shut it down (shutdown supply current ~0.1μA typ, 1μA max). Absolute-max voltage -0.3V to VIN+0.3V.
5 IN power_in Supply input pin. Operating range 4.5V-18V (absolute max 20V). A local input decoupling capacitor (typ. 10μF) to GND is required to keep the DC input voltage stable.
6 SW power_out Power switch output. Connects to the external inductor, freewheeling Schottky diode (asynchronous), and bootstrap capacitor. Absolute-max voltage 21V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

  • AP3211KTR-G1

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 4.5 18 V 4
Quiescent Current IQ 0.8 1.1 mA VFB = 0.9V 4
Shutdown Supply Current ISHDN 0.1 1 µA VEN = 0V 4
Feedback Voltage VFB 0.785 0.81 0.835 V 4
Feedback Bias Current IFB -0.1 0.1 µA VFB = 0.85V 4
Switch Leakage Current ILEAK 0.1 10 µA VIN = 18V, VEN = 0V 4
Switch Current Limit ILIM 1.8 2.4 A 4
EN Pin Threshold (high) VENH 1.5 V 4
EN Pin Threshold (low) VENL 0.4 V 4
Input UVLO Threshold VUVLO 3.3 3.8 4.3 V VIN Rising 4
Oscillator Frequency fOSC1 1.1 1.4 1.7 MHz 4
Min. Duty Cycle DMIN 0 % VFB = 0.9V 4
Input Pin Voltage VIN -0.3 20 V 3
EN Pin Voltage VEN -0.3 V 3
SW Pin Voltage VSW 21 V 3
Bootstrap Pin Voltage VBS -0.3 V 3
Feedback Pin Voltage VFB -0.3 6 V 3
Operating Junction Temperature TJ 150 ºC 3
Storage Temperature TSTG -65 150 ºC 3
Lead Temperature (Soldering) TLEAD 260 ºC Soldering, 10 sec 3
ESD (Human Body Model) 2000 V Human Body Model 3
ESD (Machine Model) 200 V Machine Model 3
Thermal Resistance θJA 220 ºC/W 3
Input Voltage VIN 4.5 18 V 3
Maximum Output Current IOUT (MAX) 1.5 A 3
Operating Ambient Temperature TA -40 85 ºC 3

CAD (KiCad official)

  • Symbol: AP3211KTR-G1
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ap3211ktr-g1-etched.step / ap3211ktr-g1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap3211ktr-g1.step / ap3211ktr-g1.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ap3211ktr-g1.step 97 KB You want the bare part, or you mark your own boards.
ap3211ktr-g1-etched.step 1.9 MB You want the part with AP3211KTR-G1 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 492 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (11 pp, sha256 e19ceaa554a5443e, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF