Texas Instruments TPS7A24 Low-Dropout (LDO) Linear Voltage Regulator
Texas Instruments TPS7A24 Low-Dropout (LDO) Linear Voltage Regulator supports a 2.4V to 18V 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 fixed and adjustable versions. The fixed-voltage version eliminates external resistors and minimizes the printed circuit board (PCB) area. The adjustable version uses feedback resistors to set the output voltage from 1.24V to 17.75V for more flexibility or higher output voltages. Both versions have 2% output regulation accuracy, which provides precision regulation for microcontroller (MCU) references.
The Texas Instruments TPS7A24 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 250mV at 200mA of current. This maximum dropout voltage allows 92.8% efficiency from a 3.55V input voltage (VIN) to a 3.3V output voltage (VOUT).
Features
- 2.0µA ultra-low IQ
- 2.4V to 18V input voltage
- Output voltage options available
- 1.25V to 5.5V fixed
- 1.24V to 17.75V adjustable
- 2% accuracy over temperature
- 250mV (max) at 200mA low dropout
- Active overshoot pulldown protection
- Thermal shutdown and overcurrent protection
- -40°C to +125°C operating junction temperature
- Stable with 1µF output capacitors
- 5-pin SOT-23 package
Applications
- Smoke and heat detectors
- Thermostats
- Motion detectors (PIR, uWave, and so forth)
- Cordless power tools
- Appliance battery packs
- Electricity meters
- Water meters
Functional Block Diagrams
Related Development Tool
Texas Instruments MULTIPKGLDOEVM-823 LDO Regulator Evaluation Module
Helps evaluate the operation and performance of several common packages of linear regulators.