Diodes Incorporated
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PT7M8218 (Obsolete)

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PT7M8218 is a high accurate, low dropout voltage regulator with low noise, high ripple rejection and low current consumption.

PT7M8218 includes a reference voltage source, an error amplifier, a driver transistor, a current limit protection, a thermal protection and an internal phase compensator.

The output voltage for the regulator is set by factory trimming within a range of 0.9V to 3.3V in 100mV step includes 2.85V. PT7M8218 is stable with low ESR ceramic capacitors.

PT7M8218 is available in SC70-5L and SOT23-5L packages. It operates over a temperature range of -40 to +85°C.


  • Input Voltage Range: 1.7V to 5.5V
  • 300mA Guaranteed Output Current
  • Stable with 0.47µF Ceramic Output Capacitors
  • Low Dropout Voltage 150mV@150mA (Vout=2.8V)
  • Low Quiescent Current 36µA
  • High PSRR 75dB@1kHz
  • Auto Output Discharge
  • High Output Accuracy ±2% Initial Accuracy
  • Thermal Shutdown and Current Limit Protection
  • Operating Temperature Range: -40°C to +85°C
  • Package: SC70-5L and SOT23-5L


  • Cell Phones
  • Mobile Phones (PDC, GSM, CDMA, IMT2000 etc.)
  • Cordless Phones and Radio Communication
  • Digital Still Cameras and Video Cameras
  • PDA
  • MP3 Players
  • Portable Devices

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) No
Dropout Voltage Max (V) N/A
Enable Active N/A
OperatingInputVoltage Max (V) 5.5
OperatingInputVoltage Min (V) 1.7
Operating Temperature (ºC) -40 to 85
Operating Temperature N/A
Output Current (mA) 0.3
Output Voltage (V) 3.3
AEC Qualified No
Quiescent Current Typ (mA) 36

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