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AP7370-33WW-7

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

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AP7370-33WW-7

Diodes Incorporated · Linear Voltage Regulators (LDO) · SOT-25

AP7370-33WW-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 Input voltage pin, recommended operating range 3.2V to 18V (absolute maximum 20V).
2 GND power_in Ground.
3 VOUT power_out Regulated output voltage (3.3V fixed for the -33 version), with output current up to 300mA and current limit protection.
4 NC unconnected Not connected for fixed version.
5 NC unconnected Not connected for fixed version.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-25
Category Power Supply Chip
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
Output Voltage tolerance VOUT -1 1 % VOUT > 2.5V 3
Input Voltage VIN 3.2 18 V 3
Current Limit ILIMIT 350 mA VOUT > 2.5V, VOUT1 = 98% VOUT 3
Dropout Voltage VDROP 500 600 mV 3.0V ≤ VOUT < 5.0V, IOUT = 100mA 3
Ground Current IGND 1.5 2.5 µA IOUT = 0A 3
Ground Current IGND 250 300 µA VOUT > 2.5V, IOUT = 300mA 3
Line Regulation ΔVOUT/ΔVIN/VOUT 0.05 %/V (VOUT(Nom)+1V, 3.2V) ≤ VIN ≤ 18V, IOUT = 10mA 3
Load Regulation ΔVOUT/VOUT 0.5 % VOUT > 2.5V, VIN = VOUT + 2V, 1mA ≤ IOUT ≤ 300mA 3
Output Voltage Temperature Coefficient ΔVOUT/(VOUT∆T) 100 ppm/°C IOUT = 100µA, -40°C ≤ TJ ≤ +125°C (printed ±100) 3
Thermal Shutdown Temperature TOTSD 160 °C 3
Thermal Shutdown Hysteresis THYOTSD 20 °C 3
Supply Input Voltage (abs max) VIN 20 V 2
Output Current (abs max) IOUT 500 mA 2
Lead Temperature TLEAD 260 °C Soldering, 10s 2
Operating Junction Temperature (abs max) TJ 150 °C 2
Storage Temperature Range TSTG -65 150 °C 2
ESD Charge Device Model 1500 V 2
ESD Human Body Model 6000 V 2
Supply Input Voltage (recommended) VIN 3.2 18 V 2
Operating Junction Temperature (recommended) TJ -40 125 °C 2
Thermal Resistance Junction to Ambient θJA 155 °C/W SOT25 2
Thermal Resistance Junction to Case θJC 23 °C/W SOT25 2

CAD (KiCad official)

  • Symbol: AP7370-33WW-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25 (KiCad packages3D, STEP)
  • 3D model files: ap7370-33ww-7-etched.step / ap7370-33ww-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap7370-33ww-7.step / ap7370-33ww-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 212ff738d2411cf6, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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