TPS7A83A 2A High-Accuracy (0.75%) Low-Noise (4.4μVRMS) LDO Regulator | TI.com

TPS7A83A
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2A High-Accuracy (0.75%) Low-Noise (4.4μVRMS) LDO Regulator

 

Recommended alternative parts

  • TPS7A8300  -  The TPS7A83 is a 2-A LDO regulator with good accuracy (1%) and improved thermal resistance (35.4°C/W)
  • TPS7A88  -  The TPS7A88 is a dual 1-A LDO regulator with improved noise (3.8µVrms) in a very small package (4 mm x 4 mm)
  • TPS7A92  -  TPS7A92 is a 2A, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)
  • TPS7A52-Q1  -  TPS7A52-Q1 is an ultralow dropout 2A LDO with an extended temperature range.

Description

The TPS7A83A device is a low-noise (4.4 µVRMS), low-dropout, linear regulator (LDO) capable of sourcing 2 A with only 200 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 5.2 V using an external resistor divider.

The combination of low noise (4.4 µVRMS), high PSRR, and high output current capability makes the TPS7A83A 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 TPS7A83A 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 5.2-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 load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A83A ensure optimal system performance.

The versatility of the TPS7A83A makes the device a component of choice for many demanding applications.

Features

  • Low Dropout: 200 mV (max) at 2 A
  • 0.75% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Output Voltage Noise:
    • 4.4 µVRMS at 0.8-V Output
    • 7.7 µVRMS at 5.2-V Output
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • ANY-OUT™ Operation:
    • Output Voltage Range: 0.8 V to 3.95 V
  • Adjustable Operation:
    • Output Voltage Range: 0.8 V to 5.2 V
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Excellent Load Transient Response
  • Adjustable Soft-Start In-Rush Control
  • Open-Drain Power-Good (PG) Output
  • Stable with a 22-µF or Larger Ceramic Output Capacitor
  • θJC = 3.4°C/W
  • Packages, 20-Pin VQFN:
    • 3.5 mm × 3.5 mm (RGR)
    • 5 mm × 5 mm (RGW)

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Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS7A83A Order now Adjustable Output
Programmable Output    
2     6.5     1.1     5.2     0.8     VQFN | 20
VQFN | 20    
Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
1     -40 to 125     43     4.4     2.45 | 1ku     Catalog     40     0.75     75     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)
20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
TPS7A84A Order now Adjustable Output
Programmable Output    
3     6.5     1.1     5.15     0.8     VQFN | 20     Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
1     -40 to 125     43     4.4     2.90 | 1ku     Catalog     25     0.75     110     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)    
TPS7A85A Order now Adjustable Output
Programmable Output    
4     6.5     1.1     5.1     0.8     VQFN | 20     Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
1     -40 to 125     43     4.4     3.50 | 1ku     Catalog     25     0.75     150     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)