Diodes Incorporated

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.


Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Linear and Low Dropout (LDO) Regulators


Wide Input Voltage Range, 300mA ULDO Regulator

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The AP7375 series is a wide input voltage range (45V), low quiescent current (2.1μA), low-dropout linear regulator (LDO) able to provide 300mA load current. The AP7375 family LDO offers an EN pin that takes an input voltage of 45V to enable and disable the LDO output.

The device features very fast response times against line voltage transient and load current transient, and ensures no overshoot voltage during start-up and short-circuit recovery. It also features integrated short-circuit and thermal shutdown protection.

The AP7375 has 1.8V, 3.0V, 3.3V, 3.6V and 5.0V fixed output voltage versions, and is available in the SOT23, SOT25, SOT89 and U-DFN2020-6 (SWP) (Type UXC) packages.


  • Wide Input Voltage Range: 3V to 45V
  • Maximum Output Current: 300mA
  • Low Dropout Voltage:

VDROP = 35mV @ IOUT = 10mA (typ.)

VDROP = 350mV @ IOUT = 100mA (typ.)

  • Low Quiescent Current: 2.1μA (typ.)
  • Fixed Output Voltages: 1.8V, 3.0V, 3.3V, 3.6V and 5.0V
  • High Output Voltage Accuracy: ±2%
  • High PSRR: 85dB @ 1kHz
  • Excellent Line/Load Regulation
  • Thermal Shutdown Function
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • An automotive-compliant part is available under separate datasheet (AP7375Q)


  • Battery-powered equipment
  • Smoke detectors and sensors
  • Microcontroller applications
  • Home appliances

Product Specifications

Product Parameters

Iq (max) (µA) 5
Iq (typ) (?A) 2.1
AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Type LDO
Output options Fixed
Iout (A) 0.3
Vin (Max) (V) 45
Vin (Min) (V) 3
Vout (min) 1.8
Fixed Vout (V) 1.8, 3, 3.3, 5
Accuracy 25C 2
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.35
PSRR (dB) 1kHz 85
Operating Temperature (Ambient) (°C) -40 to 85
Enable Active Yes (High)
Channels 1
Output Discharge No
Power Good No
Reverse Protection No
VCTL Function No

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