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PT78ST212V from TI,Texas Instruments

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PT78ST212V

Manufacturer: TI, TEXAS

12V 2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
PT78ST212V TI, TEXAS 1518 In Stock

Description and Introduction

12V 2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR # Introduction to the PT78ST212V Voltage Regulator  

The PT78ST212V is a high-performance, positive voltage regulator designed to deliver stable and reliable power in a variety of electronic applications. As part of the PT78ST series, this component is known for its efficiency, low dropout voltage, and robust thermal performance, making it suitable for both industrial and consumer electronics.  

With an output voltage of 12V and a maximum current rating of 2A, the PT78ST212V ensures consistent power delivery even under fluctuating input conditions. Its low dropout feature allows it to maintain regulation with minimal voltage differential between input and output, enhancing energy efficiency. Additionally, built-in protection mechanisms such as overcurrent and thermal shutdown safeguard the regulator and connected circuitry from potential damage.  

The device is housed in a TO-220 package, offering ease of integration into circuit designs while providing effective heat dissipation. Its wide input voltage range and high ripple rejection make it ideal for applications requiring clean and stable power, including embedded systems, telecommunications equipment, and automotive electronics.  

Engineers favor the PT78ST212V for its reliability and straightforward implementation, requiring minimal external components for operation. Whether used in linear power supplies or as a secondary regulator, this component delivers consistent performance, making it a dependable choice for power management solutions.

Application Scenarios & Design Considerations

12V 2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

Alternative Part Number

  • LMZ12002TZE-ADJ --: SIMPLE SWITCHER power module in the same TO-220-style package family, adjustable output covering 2.5V to 5.5V, suitable drop-in replacement for a 2.5V 2A regulator with integrated inductor.
  • OKI-78SR-2.5/1.5-W36-C --: Pin-compatible 3-terminal switching regulator replacement for 78ST-series parts, fixed 2.5V output, wide input range, and same footprint as the original module.
  • R-78E2.5-1.0 --: Three-terminal switching regulator in a 78xx-compatible pinout, fixed 2.5V output, high efficiency and wide input voltage, commonly used as a substitute for PT78ST-series modules.
  • LM2596S-12/NOPB --: 12V step-down switching regulator in a TO-263 package, functionally similar to the PT78ST212V module and widely available.
  • R-78E12-1.0 --: 12V 1A switching regulator module in a similar three-pin SIP footprint, a common drop-in replacement for 78ST-series modules.
  • OKI-78SR-12/1.0-W36-C --: 12V 1A non-isolated switching regulator module with a compatible pin layout, suitable as an alternative to the PT78ST212V.

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