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Automotive 4A 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 $7.28
10-24 $6.55
25-99 $6.11
100-249 $5.48
250-499 $5.12
500-749 $4.45
750-999 $3.86
1000+ $3.78


  • 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 to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.1 V
  • Low Dropout: 240 mV (max) at 4 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 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • 3.5-mm × 3.5-mm, 20-Pin VQFN Package

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Texas Instruments  TPS7A5401QRGRRQ1

The TPS7A54-Q1 deviceis a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable ofsourcing 4 A with only 240 mV of maximum dropout. The device output voltage isadjustable 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-Q1 ideal to power noise-sensitive components such as those found inradar power and infotainment applications. The high performance of this device limitspower-supply-generated phase noise and clock jitter, making this device ideal for powering RFamplifiers, 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 (1% over load andtemperature), remote sensing, excellent transient performance, and soft-start capabilities of theTPS7A54-Q1 provides optimalsystem performance.

The versatility of the TPS7A54-Q1 makes the device a component of choice for many demandingapplications.