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Automotive 3A High-Accuracy Low-Noise Low-Dropout (LDO) Voltage Regulator


Package | PIN: RGR | 20
Temp: S (-40 to 150)
Carrier: Cut Tape
Qty Price
1-9 $6.03
10-24 $5.42
25-99 $5.06
100-249 $4.54
250-499 $4.24
500-749 $3.69
750-999 $3.19
1000+ $3.13


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.15 V
  • Low Dropout: 180 mV (max) at 3 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain Power-Good (PG) Output
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP withWettable Flanks and High CTE (12 ppm/ºC) Mold Compound

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Texas Instruments  TPS7A5301QRGRRQ1

The TPS7A53-Q1 deviceis a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable ofsourcing 3 A with only 180 mV of maximum dropout. The device output voltage isadjustable from 0.8 V to 5.15 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and highoutput current capability makes the TPS7A53-Q1 an excellent choice to power noise-sensitive components, such asthose found in radar power and infotainment applications. The high performance of this devicelimits power-supply-generated phase noise and clock jitter, making this device an excellent choicefor powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit fromthe high-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) that requirelow-input, low-output (LILO) voltage operation, the exceptional accuracy (1% over load andtemperature), remote sensing, excellent transient performance, and soft-start capabilities of theTPS7A53-Q1 provide optimalsystem performance.

The versatility of the TPS7A53-Q1 makes the device a component of choice for many demandingapplications.