2A, Low-Dropout Voltage Regulator for High-Speed Communication Systems - TPS7A8300

TPS7A8300 (ACTIVE)

2A, Low-Dropout Voltage Regulator for High-Speed Communication Systems

 

Recommended alternative parts

  • TPS7A88  -  TPS7A88 is a dual channel, low-noise 2-A LDO
  • TPS7A83A  -  The TPS7A83A is 2-A LDO with low-noise (4.4 µVRMS) and low-dropout (200mV) and improved accuracy (0.75%)
  • TPS7A92  -  TPS7A92 is 2A, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)
  • TPS7A89  -  TPS7A89 is a dual-channel, low noise, 2-A LDO.

Description

The TPS7A8300 is a low-noise (6 µVRMS), low-dropout voltage regulator (LDO) capable of sourcing a 2-A load with only 125 mV of maximum dropout.

The TPS7A8300 output voltages are fully user-adjustable (up to 3.95 V) using a printed circuit board (PCB) layout without the need of external resistors, thus reducing overall component count. For higher output voltage applications, the device achieves output voltages up to 5 V with the use of external resistors. The device supports very low input voltages (down to 1.1 V) with the use of an additional BIAS rail.

With very high accuracy (1% over line, load, and temperature), remote sensing, and soft-start capabilities to reduce inrush current, the TPS7A8300 is ideal for powering high-current, low-voltage devices such as high-end microprocessors and field-programmable gate arrays (FPGAs).

The TPS7A8300 is designed to power-up noise-sensitive components in high-speed communication applications. The very low-noise, 6-µVRMS device output and high broad-bandwidth PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter in high-frequency signals. These features maximize performance of clocking devices, analog-to-digital converters (ADCs), and digital-to-analog converters (DACs).

For applications where positive and negative low-noise rails are required, consider TI’s TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.

Features

  • Ultralow Dropout: 125 mV Maximum at 2 A
  • Output Voltage Noise: 6 µVRMS
  • Power-Supply Ripple Rejection:
    • 40 dB at 1 MHz
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Two Output Voltage Modes:
    • ANY-OUT™ Version (User-Programmable Output via PCB Layout):
      • No External Resistor Required
      • Output Voltage Range: 0.8 V to 3.95 V
    • Adjustable Version:
      • Output Voltage Range: 0.8 V to 5.0 V
  • 1.0% Accuracy Over Line, Load, and Temperature
  • Stable with a 22-µF Output Ceramic Capacitor
  • Programmable Soft-Start Output
  • Power-Good (PG) Output
  • Available Packages:
    • 5-mm × 5-mm VQFN-20
    • 3.5-mm × 3.5-mm VQFN-20

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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
Rating
Operating Temperature Range (C)
Pin/Package
TPS7A8300 TPS7A84 TPS7A85
2    3    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    5    5   
2.8    2.8    2.8   
85    110    150   
1    1    1   
6    4.4    4.4   
40    25    25   
Ceramic    Ceramic    Ceramic   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
20VQFN
20VQFN   
20VQFN    20VQFN   
New! Interactive Design
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WEBENCH® Designer TPS7A8300

  Min   Max Range
Vin  V 1.1 to 6.5V
Vout  V 0.8 to 5.0V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C


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