Diodes Incorporated

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AP7383 (Not Recommended for new design)

NRND = Not Recommended for New Design

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, which make 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
  • Moisture Sensitivity:

     - SOT25/U-DFN2020-6 (Type C): Level 1 per J-STD-020

     - SOT89: Level 3 per J-STD-020

  • Terminals:

     - SOT25/SOT89: Finish – Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208

     - U-DFN2020-6 (Type C): Finish – NiPdAu over Copper Leadframe. Solderable per MIL-STD-202, Method 208

  • Weight:
    - SOT25: 0.016 grams (Approximate)
    - SOT89: 0.055 grams (Approximate)
    - U-DFN2020-6 (Type C): 0.007 grams (Approximate)
  • 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-Q100/101/200, 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 Equipment
  • Laptop, Palmtops, Notebook Computers
  • Portable Information Appliances

Product Specifications

Product Parameters

Accuracy 25C 1%
Automotive Complianat and PPAP capable no
Compliance (Only Automotive supports PPAP) No
Channels 1
Compliance (Only Automotive supports PPAP) Standard
Dropout Voltage Max (V) 0.58
Enable Active H
Features Low IQ, Wide Vin
Fixed Vout (V) 1.8, 3.0, 3.3, 3.45, 3.6, 4.15, 4.4, 5.0
Fixed Vout(V) 5.0, 4.4, 4.15, 3.6, 3.3, 3.0, 1.8
Fixed Vout(V) 5.0, 4.4, 4.15, 3.6, 3.45, 3.3,3.0,1.8
IOUT 0.15
Iout (A) 0.15
IQ (mA) 1.8
Iq (max) (µA) 3
Iq (max) (µA) 3
Iq (max) (µA) 3
Iq (typ) (µA) 1.8
Iq (typ) (µA) 1.8
OperatingInputVoltage Max (V) 30
OperatingInputVoltage Min (V) 3.5
Operating Temperature (ºC) N/A
Operating Temperature (Ambient) (°C) -40 to 85
Operating Temperature -40 to 125
Output Current (mA) 0.15
Output Discharge no
Output options Fixed
Output Voltage (V) 1.8, 3, 3.3, 3.6, 4.15, 4.4, 5
AEC Qualified No
Quiescent Current Typ (mA) 1.8
VCTL Function no
VDROPOUT (Max) 0.58
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 1.1
VDROPOUT (Max) (V) at Max Current and Max Voltage 1.1
VDROPOUT (Max)(V) at Max Current and Max Voltage 1.1
VIN (Max) 30
Vin (Max) (V) 30
VIN (Min) 3.5
Vin (Min) (V) 3.5
VOUT 1.8, 3, 3.3, 3.6, 4.15, 4.4, 5
Vout (max) 5
Vout (min) 1.8

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