TPS7A84A 3A High-Accuracy (0.75%) Low-Noise (4.4-μVRMS) LDO Regulator |


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

3A High-Accuracy (0.75%) Low-Noise (4.4-μVRMS) LDO Regulator - TPS7A84A

Recommended alternative parts

  • TPS74401  -  The TPS74401 is a 3-A LDO regulator with a smaller VOUT range (0.8 V to 3.3 V).
  • TPS7A84  -  The TPS7A84 is a 3-A LDO regulator with good accuracy (1%) and improved thermal resistance (35.4°C/W).
  • TPS7A89  -  The TPS7A89 is a dual 2-A LDO regulator with improved noise (3.8µVrms) in a very small package (4 mm x 4 mm).
  • TPS7A53-Q1  -  TPS7A53-Q1 is a low noise 3A LDO with an extended temperature range


The TPS7A84A is a low-noise, low-dropout linear regulator (LDO) capable of sourcing 3 A with only 180-mV of maximum dropout. The device output voltage is pin-programmable from 0.8 V to 3.95 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 the TPS7A84A ideal to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. The high performance of the TPS7A84A limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. Specifically, RF amplifiers benefit from 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-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (0.75% over line, load, and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A84A ensure optimal system performance.

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


  • 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 to 6.5 V
  • Output Voltage Range:
    • Adjustable Operation: 0.8 V to 5.15 V
    • ANY-OUT™ Operation: 0.8 V to 3.95 V
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • 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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Parametrics Compare all products in Single Channel LDO

Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Operating Temperature Range (C)
3     2     4    
Adjustable Output
Programmable Output    
Adjustable Output
Programmable Output    
Adjustable Output
Programmable Output    
1.1     1.1     1.1    
6.5     6.5     6.5    
0.8     0.8     0.8    
5.15     5.2     5.1    
2.8     2.8     2.8    
110     75     150    
0.75     0.75     0.75    
4.4     4.4     4.4    
25     40     25    
Ceramic     Ceramic     Ceramic    
Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125    
20VQFN     20VQFN