Texas Instruments TPS7A5401RPST
- Part Number:
- TPS7A5401RPST
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6410289-TPS7A5401RPST
- Description:
- 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator
- Datasheet:
- tps7a54
- Output optionsAdjustable Output
- Iout (max) (A)4
- Vin (max) (V)6.5
- Vin (min) (V)1.1
- Vout (max) (V)5.15
- Vout (min) (V)0.8
- Noise (μVrms)4.4
- Iq (typ) (mA)2.8
- Thermal resistance θJA (°C/W)46.5
- RatingCatalog
- Load capacitance (min) (μF)22
- Regulated outputs (#)1
- FeaturesEnable
- Accuracy (%)0.5
- PSRR at 100 KHz (dB)30
- Dropout voltage (Vdo) (typ) (mV)85
- Operating temperature range (°C)-40 to 125
The TPS7A54 is a low-noise (4.4 µVRMS), low-dropout linearregulator (LDO) capable of sourcing 4 A with only 175 mV of maximum dropout. Thedevice output voltage is adjustable from 0.8 V to 5.1 V using an external resistor divider.
The combination of low noise (4.4 µVRMS), high PSRR, and highoutput current capability makes the TPS7A54 an excellent choice to power noise-sensitive componentssuch as those found in radar power and infotainment applications. The high performance of thisdevice limits power-supply-generated phase noise and clock jitter, making this device ideal forpowering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from thehigh performance and 5.0-V output capability of the device.
For digital loads [such as application-specific integrated circuits (ASICs),field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-inputvoltage, low-output (LILO) voltage operation, the exceptional accuracy (0.5% over load andtemperature), remote sensing, excellent transient performance, and soft-start capabilities of theTPS7A54 provides optimal system performance.
As an adjustable voltage regulator, there is versatility in design of the TPS7A54 thatmakes the device a component of choice for analog loads such as voltage-controlled oscillator(VCO), analog-to-digital converter (ADC), digital-to-analog converter (DAC), and imaging sensorsand for digital loads such as serializer/deserializer (SerDes), field-programmable gate arrays(FPGAs), and digital signal processors (DSPs).
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