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The AP7370 is a positive voltage regulator IC.

The AP7370 has features of wide input voltage range, high accuracy, low dropout voltage, current limit, reverse current protection, and ultra-low quiescent current which make it ideal for use in various USB and 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 AP7370 is available in 1.2V, 1.5V,1.8V,2.8V, 3.0V, 3.3V, 3.6V and 5.0V fixed output voltage versions.

The AP7370 is available in space-saving SOT23, SOT25, SOT89 and DFN2020-6 packages.


  • TV
  • Monitor
  • Set-top-box
  • Computing
  • Surveillance


  • Wide Input Voltage Range: Up to 18V
  • Low Dropout Voltage: VDROP = 500mV @ IOUT = 100mA
  • Low Ground Current
  • High Output Voltage Accuracy
  • Compatible with Low ESR Ceramic Capacitor
  • Excellent Line/Load Regulation

Product Specifications

Product Parameters

Features Wide Vin
IOUT 0.3 A
VIN (Max) 18 V
VIN (Min) 3.2 V
VOUT 1.2, 1.5,1.8,2.8, 3.0, 3.3, 3.6, 5.0 V
IQ 1.5 µA
PSRR 40 dB
VDROPOUT (Max) 0.5 V
Operating Temperature (Ambient) -40 to 85
Enable Active N/A
Channels 1

Technical Documents

Recommended Soldering Techniques
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AP7370-33W5-7 Digi-Key Electronics 2405 11/12/2019 Buy Now United States
AP7370-33Y-13 Digi-Key Electronics 2044 11/12/2019 Buy Now United States
AP7370-50W5-7 Digi-Key Electronics 2574 11/12/2019 Buy Now United States
AP7370-50Y-13 Digi-Key Electronics 2337 11/12/2019 Buy Now United States