TPS7A8300 2 A LDO for High Speed Communication Systems | TIJ.co.jp

TPS7A8300
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2 A LDO for High Speed Communication Systems

2 A LDO for High Speed Communication Systems - TPS7A8300
データシート
 

推奨代替製品

  • 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.

概要

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.

特長

  • 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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WEBENCH® Designer TPS7A8300

  最小   最大 範囲
入力電圧  V 1.1 to 6.5V
出力電圧  V 0.8 to 5V
負荷電流  A ≤ 2A
周囲温度  °C -40 to 125°C

機能一覧

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Part number オーダー・オプション 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)
TPS7A8300 ご注文 Adjustable Output
Programmable Output    
2     6.5     1.1     5     0.8     VQFN | 20
VQFN | 20    
Enable
Output Discharge
Power Good
Soft Start    
1     -40 to 125     34     6     2.45 | 1ku     Catalog     40     1     85     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)
20VQFN: 25 mm2: 5 x 5 (VQFN | 20)    
TPS7A84 ご注文 Adjustable Output
Programmable Output    
3     6.5     1.1     5     0.8     VQFN | 20     Enable
Output Discharge
Power Good
Soft Start    
1     -40 to 125     35     4.4     2.90 | 1ku     Catalog     25     1     110     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)    
TPS7A85 ご注文 Adjustable Output
Programmable Output    
4     6.5     1.1     5     0.8     VQFN | 20     Enable
Output Discharge
Power Good
Soft Start    
1     -40 to 125     35     4.4     3.50 | 1ku     Catalog     25     1     150     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)