Diodes Incorporated

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AP7384 (Not Recommended for new design)

NRND = Not Recommended for New Design

Wide Input Voltage Range 50MA ULDO Regulator

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The AP7384 series is a positive voltage regulator IC. The AP7384 has features of wide input voltage range, high accuracy, low dropout voltage, current limit and ultra-low quiescent current which make it ideal for use in various USB and portable devices. 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 AP7384 has 2.8V, 3.3V, 5V and 7V fixed voltage version. The AP7384 is available in space-saving SOT89, SOT23 and TO92 (Ammo Packing) packages.


  • Wide Input Voltage Range: Up to 40V
  • Low Dropout Voltage: VDROP = 500mV@IOUT = 50mA @ VOUT = 3.3V
  • Low Ground Current
  • High Output Voltage Accuracy
  • Compatible with Low ESR Ceramic Capacitor
  • Excellent Line/Load Regulation
  • Thermal Shutdown Function
  • Short Current Protection Function
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)


  • E-Meter
  • Battery-powered Equipment
  • Laptop, Palmtops, Notebook Computers
  • Portable Information Appliances

Product Specifications

Product Parameters

Accuracy 25C 2%
Automotive Complianat and PPAP capable no
Compliance (Only Automotive supports PPAP) No
Channels 1
Compliance (Only Automotive supports PPAP) Standard
Dropout Voltage Max (V) 0.5
Features Low IQ, Wide Vin
Fixed Vout (V) 2.8, 3.3, 5.0, 7.0
Fixed Vout(V) 7.0, 5.0, 3.3, 2.8
Fixed Vout(V) 7.0,5.0,3.3,2.8
IOUT 0.05
Iout (A) 0.05
IQ (mA) 2.5
Iq (max) (µA) 5
Iq (max) (µA) 5
Iq (max) (µA) 5
Iq (typ) (µA) 2.5
Iq (typ) (µA) 2.5
OperatingInputVoltage Max (V) 40
OperatingInputVoltage Min (V) 3.3
Operating Temperature (ºC) -40 to 125
Operating Temperature (Ambient) (°C) -40 to 85
Operating Temperature N/A
Output Current (mA) 0.5, 0.15
Output Discharge no
Output options Fixed
Output Voltage (V) 2.8, 3.3, 5, 7
AEC Qualified No
Quiescent Current Typ (mA) 2.5
VCTL Function no
VDROPOUT (Max) 0.5
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.5
VDROPOUT (Max) (V) at Max Current and Max Voltage 0.75
VDROPOUT (Max)(V) at Max Current and Max Voltage 0.75
VIN (Max) 40
Vin (Max) (V) 40
VIN (Min) 3.3
Vin (Min) (V) 3.3
VOUT 2.8, 3.3, 5, 7
Vout (max) 7
Vout (min) 2.8

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