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Contents

README

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AP2202K-3.3TRG1

Diodes Incorporated · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

AP2202K-3.3TRG1 from Diodes Incorporated, in a SOT-23-5. 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 VIN power_in Supply input voltage. Recommended operating range 2.5V to 13.2V (absolute max 15V). For normal regulation VIN must be at least VOUT + 0.165V (dropout). A 1.0μF input capacitor (CIN) is recommended.
2 GND power_in Device ground and current return. Ground pin current is typically 95μA at IOUT=0μA and up to ~1.3mA at IOUT=150mA.
3 EN input Enable input, CMOS/TTL compatible. Logic high (VEN ≥ 2.0V) enables the regulator; logic low (VEN ≤ 0.4V) puts the device into low-power shutdown (ISTD ~0.01μA typ, 1μA max). Do not float; tie to VIN if always-on operation is desired. Absolute max VEN = 15V.
4 BYP passive Bypass pin for low-noise operation on the fixed-voltage (AP2202K-3.3) version. Connect an external capacitor (typ. 100pF) from BYP to GND to bypass the internal bandgap reference, reducing output noise (typ. 260 nV/√Hz with CBYP=100pF, COUT=2.2μF, IOUT=50mA). On the AP2202-ADJ variant this pin is instead ADJ (feedback input).
5 VOUT power_out Regulated output voltage, 3.3V ±1% (fixed for the -3.3 option). Delivers up to 150mA. Requires a 2.2μF output capacitor (COUT) for stability.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • AP2202K-3.3TRG1
  • AP2202K-3.3TRG1K-2.5TRG1
  • AP2202K-3.3TRG1K-2.6TRG1
  • AP2202K-3.3TRG1K-2.8TRG1
  • AP2202K-3.0TRG1
  • AP2202K-3.3TRG1K-ADJTRG1
  • AP2202K-3.3TRG1Y-3.3TRG1
  • AP2202K-3.3TRG1Y-2.5TRG1
  • AP2202K-3.3TRG1Y-2.6TRG1
  • AP2202K-3.3TRG1Y-2.8TRG1
  • AP2202K-3.3TRG1Y-3.0TRG1

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Input Voltage VIN 15 V 4
Enable Input Voltage VEN 15 V 4
Lead Temperature (Soldering) TLEAD 260 °C Soldering, 10sec 4
Junction Temperature TJ 150 °C 4
Storage Temperature TSTG -65 150 °C 4
ESD (Machine Model) 200 V 4
Supply Input Voltage (recommended) VIN 2.5 13.2 V 4
Enable Input Voltage (recommended) VEN 0 13.2 V 4
Operating Junction Temperature TJ -40 125 °C 4
Output Voltage Accuracy VOUT/VOUT -1 1 % Variation from Specified VOUT; TJ = +25°C 15
Output Voltage Accuracy (over temperature) VOUT/VOUT -2 2 % Variation from Specified VOUT; over -40°C ≤ TJ ≤ +125°C (bold) 15
Output Voltage Temperature Coefficient ∆VOUT/∆T 120 µV/°C 15
Output Voltage Temperature Coefficient (ppm) (∆VOUT/VOUT)/∆T 36.3 ppm/°C 15
Line Regulation VRLINE 1 5 mV VIN = 4.3V to 13.2V; TJ = +25°C 15
Line Regulation (over temperature) VRLINE 15 mV VIN = 4.3V to 13.2V 15
Load Regulation VRLOAD 1 8 mV IOUT = 0.1mA to 150mA; TJ = +25°C 15
Load Regulation (over temperature) VRLOAD 17 mV IOUT = 0.1mA to 150mA 15
Dropout Voltage VDROP 15 50 mV IOUT = 100µA; TJ = +25°C 15
Dropout Voltage (over temperature) VDROP 70 mV IOUT = 100µA 15
Dropout Voltage VDROP 110 150 mV IOUT = 50mA; TJ = +25°C 15
Dropout Voltage (over temperature) VDROP 230 mV IOUT = 50mA 15
Dropout Voltage VDROP 140 250 mV IOUT = 100mA; TJ = +25°C 15
Dropout Voltage (over temperature) VDROP 300 mV IOUT = 100mA 15
Dropout Voltage VDROP 165 275 mV IOUT = 150mA; TJ = +25°C 15
Dropout Voltage (over temperature) VDROP 350 mV IOUT = 150mA 15
Standby Current ISTD 0.01 1 µA VEN ≤ 0.4V (Shutdown) 15
Standby Current ISTD 5 µA VEN ≤ 0.18V (Shutdown) 15
Ground Pin Current IGND 95 130 µA VEN ≥ 2.0V, IOUT = 0µA; TJ = +25°C 15
Ground Pin Current (over temperature) IGND 150 µA VEN ≥ 2.0V, IOUT = 0µA 15
Ground Pin Current IGND 98 140 µA VEN ≥ 2.0V, IOUT = 100µA; TJ = +25°C 15
Ground Pin Current (over temperature) IGND 160 µA VEN ≥ 2.0V, IOUT = 100µA 15
Ground Pin Current IGND 350 600 µA VEN ≥ 2.0V, IOUT = 50mA; TJ = +25°C 15
Ground Pin Current (over temperature) IGND 800 µA VEN ≥ 2.0V, IOUT = 50mA 15
Ground Pin Current IGND 600 1000 µA VEN ≥ 2.0V, IOUT = 100mA; TJ = +25°C 15
Ground Pin Current (over temperature) IGND 1500 µA VEN ≥ 2.0V, IOUT = 100mA 15
Ground Pin Current IGND 1300 1900 µA VEN ≥ 2.0V, IOUT = 150mA; TJ = +25°C 15
Ground Pin Current (over temperature) IGND 2500 µA VEN ≥ 2.0V, IOUT = 150mA 15
Current Limit ILIMIT 320 550 mA VOUT = 0V 15
Enable Input Logic-Low Voltage VIL 0.4 V Regulator Shutdown; TJ = +25°C 16
Enable Input Logic-Low Voltage (over temperature) VIL 0.18 V Regulator Shutdown 16
Enable Input Logic-High Voltage VIH 2 V Regulator Enabled 16
Enable Input Logic-Low Current IIL 0.01 1 µA VIL ≤ 0.4V 16
Enable Input Logic-Low Current (over temperature) IIL 2 µA VIL ≤ 0.18V 16
Enable Input Logic-High Current IIH 5 20 µA VIH ≥ 2.0V; TJ = +25°C 16
Enable Input Logic-High Current (over temperature) IIH 25 µA VIH ≥ 2.0V 16
Thermal Resistance Junction-to-Ambient (no heatsink) θJA 200 °C/W SOT-23-5, no heatsink 4
Thermal Resistance Junction-to-Case θJC 63.4 °C/W SOT-23-5 16

CAD (KiCad official)

  • Symbol: AP2202K-3.3TRG1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ap2202k-3-3trg1-etched.step / ap2202k-3-3trg1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap2202k-3-3trg1.step / ap2202k-3-3trg1.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ap2202k-3-3trg1.step 85 KB You want the bare part, or you mark your own boards.
ap2202k-3-3trg1-etched.step 2.6 MB You want the part with AP2202K-3.3TRG1 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 639 faces against 102 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 (26 pp, sha256 ac902c499d16dc61, 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