ST 78M12 12V Voltage Regulator IC

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The ST L78M12 is a three-terminal positive regulator in DPAK packages with several fixed output voltages that can be used in a variety of applications. These regulators can provide local on-card regulation, avoiding the distribution issues that single-point regulation causes. Internal current limiting, thermal shutdown, and safe area protection are used in each type, making it virtually indestructible. They can deliver more than 0.5 A output current if adequate heat sinking is provided. Despite being designed primarily as fixed voltage regulators, these devices can be used in conjunction with external components to produce adjustable voltages and currents.


  • Output current to 0.5A
  • Thermal overload protection
  • Short circuit protection
  • Output transition SOA protection 
  • Extended temperature range


 Model 78M12
 Brand STMicroelectronics
 Mounting Type SMD/SMT
 No. of Pins 03
 DC Input Voltage (VI)
 Output Voltage (VO)
 Quiescent Current 6 mA
 Dropout Voltage
 Storage Operating Temperature -65~150°C
 Package DPAK
Country of Origin China

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