TPS7A24 – 8V tolerant, 2-µA IQ, 200-mA low-dropout (LDO) linear voltage regulator

TPS7A24 – 8V tolerant, 2-µA IQ, 200-mA low-dropout (LDO) linear voltage regulator


The TPS7A24 low-dropout (LDO) linear voltage regulator supports a 2.4-V to 18-V input voltage range with ultra-low quiescent current (IQ). These features help modern appliances meet increasingly stringent energy requirements and help extend battery life in portable-power solutions.

The TPS7A24 is available in both fixed and adjustable versions. The fixed-voltage version eliminates external resistors and minimizes printed circuit board (PCB) area. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.75 V. Both versions have 2% output regulation accuracy that provides precision regulation for microcontroller (MCU) references.

TPS7A24 Internal Diagram


  • Ultra-low IQ: 2.0 µA
  • Input voltage: 2.4 V to 18 V
  • Output voltage options available:
    • Fixed: 1.25 V to 5.5 V
    • Adjustable: 1.24 V to 17.75 V
  • 2% accuracy over temperature
  • Low dropout: 250 mV (max) at 200 mA
  • Active overshoot pulldown protection
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Stable with 1-µF output capacitors
  • Package: 5-pin SOT-23

The TPS7A24 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 250 mV at 200 mA of current. This maximum dropout voltage allows for 92.8% efficiency from a 3.55-V input voltage (VIN) to a 3.3-V output voltage (VOUT).

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Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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Ultra-low Iq? No, certainly not for 200mA. But the 200mV drop is not bad.

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