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AP7311-33WG-7

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Diodes Incorporated Linear Voltage Regulators (LDO), SOT-25-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AP7311-33WG-7

Diodes Incorporated · Linear Voltage Regulators (LDO) · SOT-25-5

AP7311-33WG-7 from Diodes Incorporated, in a SOT-25-5. 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 IN power_in Voltage input pin, to be bypassed to ground through at least a 1µF capacitor (recommended input range 2V to 6V).
2 GND power_in Ground.
3 EN input Enable input, active high; logic low below 0.4V turns the output off and logic high above 1.4V turns it on, and it can be tied to IN if unused.
4 NC unconnected No connection on the fixed-output version (pin 4 is ADJ only on the adjustable version).
5 OUT power_out Voltage output pin, to be bypassed to ground through a 1µF ceramic capacitor.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-25-5
Category Power Management ICs
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 Accuracy VOUT -2 2 % TA = -40°C to 85°C, IOUT = 30mA 5
Input Quiescent Current IQ 55 75 μA VEN = VIN, IOUT = 0mA 5
Input Quiescent Current IQ 65 85 μA VEN = VIN, IOUT = 150mA 5
Input Shutdown Current ISHDN 1 μA VEN = 0V, IOUT = 0mA 5
Input Leakage Current ILEAK 1 μA VEN = 0V, OUT grounded 5
Dropout Voltage VDropout 150 300 mV IOUT = 150mA 5
Line Regulation ΔVOUT/ΔVIN/V 0.01 0.2 %/V VIN = (VOUT +1V) to VIN-Max, VEN = VIN, IOUT = 1mA 5
Load Regulation ΔVOUT/VOUT -0.6 0.6 % VIN = (VOUT +1V) to VIN-Max, IOUT from 1mA to 150mA 5
Current Limit ILIMIT 200 300 mA VIN = (VOUT +1V) to VIN-Max, VOUT/ROUT = 0.5A 5
EN Input Logic Low Voltage VIL 0.4 V VIN = VIN-Min to VIN-Max 5
EN Input Logic High Voltage VIH 1.4 V VIN = VIN-Min to VIN-Max 5
EN Input Current IEN -1 1 μA VIN = 0V or VIN-Max 5
Input Voltage VIN 2 6 V 4
Output Current IOUT 0 150 mA 4
Operating Ambient Temperature TA -40 85 °C 4
Input Voltage VIN 7 V 4
EN Voltage EN 0 V VIN + 0.3 V 4
ESD Human Body Model ESD HBM 6 kV 4
ESD Machine Model ESD MM 400 V 4
Operating Junction Temperature Range TOP -40 125 °C 4
Storage Temperature Range TST -65 150 °C 4
Power Dissipation PD 640 mW SOT25, ambient 25°C 4
Maximum Junction Temperature TJ 150 °C 4
Thermal Resistance Junction-to-Ambient θJA 190 °C/W SOT25 (Note 6) 5
Reference Voltage (Adjustable version) VREF 0.4 V IOUT= 0mA 5
Start-up Time tST 80 μs VEN = 0V to 2.0V, VOUT = 1.8V, IOUT = 150mA 5
PSRR PSRR 65 dB f = 100Hz, IOUT = 30mA 5
Short-circuit Current ISHORT 50 mA VIN = VIN-Min to VIN-Max, VOUT < 0.2V 5
Thermal Shutdown Threshold TSHDN 140 °C 5
Thermal Shutdown Hysteresis THYS 15 °C 5

CAD (KiCad official)

  • Symbol: AP7311-33WG-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25-5 (KiCad packages3D, STEP)
  • 3D model files: ap7311-33wg-7-etched.step / ap7311-33wg-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap7311-33wg-7.step / ap7311-33wg-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (13 pp, sha256 6bf469c670222d24, retrieved 2026-10-26, 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