Diodes Incorporated

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U DFN2020 6 Type F

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

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Wide Input Voltage Range, 150MA ULDO Regulator

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The AP7383 series is a positive voltage regulator IC.

The AP7383 features a wide-input voltage range, high-accuracy, lowdropout voltage, current limit and ultra-low quiescent current; all of which makes it ideal for use in various USB, portable devices, and instrument application.

The IC consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current-limit circuit for current protection, and a chip enable circuit.

The AP7383 is available in 1.8V, 3.0V, 3.3V, 3.45V, 3.6V, 4.15V, 4.4V and 5.0V fixed-output voltage versions.

The AP7383 is available in space-saving SOT25, SOT89 and UDFN2020-6 (Type C) packages.


  • Wide Input Voltage Range: Up to 30V
  • Low Dropout Voltage: VDROP = 500mV @ IOUT = 50mA
  • Low Ground Current
  • High Output Voltage Accuracy
  • Compatible with Low ESR Ceramic Capacitor
  • Excellent Line/Load Regulation
  • Thermal Shutdown Function
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • Battery-powered equipments
  • Laptops, palmtops, notebook computers
  • Portable information appliances

Product Specifications

Product Parameters

Iq (max) (µA) 3
Compliance (Only Automotive supports PPAP) Standard
Output options Fixed
Iout (A) 0.15
Vin (Max) (V) 30
Vin (Min) (V) 3.5
Vout (min) 1.8
Vout (max) 5
Fixed Vout (V) 1.8, 3.0, 3.3, 3.45, 3.6, 4.15, 4.4, 5.0
Accuracy 25C 1%
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 1.1
Operating Temperature (Ambient) (°C) -40 to 85
Enable Active H
Channels 1
Output Discharge no
VCTL Function no

Technical Documents

Recommended Soldering Techniques



Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site