(ACTIVE) 2A High-Accuracy Low-Noise Low-Dropout (LDO) Voltage Regulator


Functional Diagram


The TPS7A92 is a low-noise (4.8 µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 2 A with only 180 mV of dropout.

The TPS7A92 output is adjustable with external resistors from 0.8 V to 5.2 V. The TPS7A92 wide input-voltage range supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A92 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), high-end processors, and field-programmable gate arrays (FPGAs)].

The TPS7A92 is designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 4.6-µVRMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.


  • 1.0% Accuracy Over Line, Load, and Temperature
  • Low Output Noise: 4.6 µVRMS (10 Hz–100 kHz)
  • Low Dropout: 180 mV (Typ) at 2 A
  • Wide Input Voltage Range: 1.4 V to 6.5 V
  • Wide Output Voltage Range: 0.8 V to 5.2 V
  • High Power-Supply Ripple Rejection (PSRR):
    • 60 dB at DC
    • 40 dB at 100 kHz
    • 40 dB at 1 MHz
  • Fast Transient Response
  • Adjustable Start-Up In-Rush Control with Selectable Soft-Start Charging Current
  • Open-Drain Power-Good (PG) Output
  • RθJC = 3.2°C/W
  • Stable with a 22-µF or Larger Ceramic Output Capacitor
  • 2.5-mm × 2.5-mm, 10-Pin WSON Package

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Output Options Adjustable Output    
Iout (Max) (A) 2    
Vin (Max) (V) 6.5    
Vin (Min) (V) 1.4    
Vout (Max) (V) 5.2    
Vout (Min) (V) 0.8    
Package Group SON|10    
Features Enable^Foldback Overcurrent Protection^Output Discharge^Power Good^Soft Start    
Regulated Outputs (#) 1    
Operating Temperature Range (C) -40 to 125    
Thermal Resistance θJA (°C/W) 57    
Noise (uVrms) 4.7    
Approx. Price (US$) 1.50 | 1ku    
Rating Catalog    
Output Capacitor Type Ceramic    
PSRR @ 100KHz (dB) 48    
Accuracy (%) 1    
Vdo (Typ) (mV) 260    
Iq (Typ) (mA) 2.1    
Package Size: mm2:W x L (PKG) See datasheet (SON)    

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