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3A High-Accuracy (0.75%) Low-Noise (4.4-μVRMS) LDO Regulator


Package | PIN: RGR | 20
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $5.59
10-24 $5.03
25-99 $4.70
100-249 $4.21
250-499 $3.93
500-749 $3.42
750-999 $2.96
1000+ $2.90


  • Low Dropout: 180 mV (maximum) at 3 A With BIAS
  • 0.75% (maximum) Accuracy Over Line, Load, and Temperature With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to6.5 V
  • Output Voltage Range:
    • Adjustable Operation: 0.8 V to 5.15 V
    • ANY-OUT™ Operation: 0.8 V to3.95 V
  • Power-Supply Ripple Rejection:
    • 40 dB at 500kHz
  • Excellent Load Transient Response
  • Adjustable Soft-Start In-Rush Control
  • Low Thermal Resistance: RθJA = 43.4°C/W
  • Open-Drain Power-Good (PG) Output

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Texas Instruments  TPS7A8400ARGRR

The TPS7A84A is a low-noise, low-dropout linear regulator (LDO) capable of sourcing 3 Awith only 180-mV of maximum dropout. The device output voltage is pin-programmable from 0.8 V to3.95 V and adjustable from 0.8 V to 5.15 V using an external resistor divider.

The combination of low-noise, high-PSRR, and high output-current capability makes theTPS7A84A ideal to power noise-sensitive components such as those found in high-speedcommunications, video, medical, or test and measurement applications. The high performance of theTPS7A84A limits power-supply-generated phase noise and clock jitter, making this device ideal forpowering high-performance serializer and deserializer (SerDes), analog-to-digital converters(ADCs), digital-to-analog converters (DACs), and RF components. Specifically, RF amplifiers benefitfrom the high-performance and > 5-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 (0.75% over line, load, andtemperature), remote sensing, excellent transient performance, and soft-start capabilities of theTPS7A84A ensure optimal system performance.

The versatility of the TPS7A84A makes the device a component of choice for many demandingapplications.