TPS7A89 デュアル、2A、低ノイズ(3.8μVRMS)LDO 電圧レギュレータ | TIJ.co.jp

TPS7A89
この製品はすでに市場にリリースされており、ご購入できます。 一部の製品は、より新しい代替品を使用できる可能性があります。
デュアル、2A、低ノイズ(3.8μVRMS)LDO 電圧レギュレータ

 

推奨代替製品

  • TPS7A84A  -  The TPS7A84A is a 3A single channel LDO with improved accuracy 0.75%
  • TPS7A8300  -  TPS7A8300 is a low noise, 2-A LDO.

概要

The TPS7A89 is a dual, low-noise (3.8 µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 2 A per channel with only 400 mV of maximum dropout.

The TPS7A89 provides the flexibility of two independent LDOs and approximately 60% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8 V to 5.2 V. The wide input-voltage range of the TPS7A89 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 TPS7A89 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 TPS7A89 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 3.8-µVRMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize the performance of clocking devices, ADCs, and DACs.

特長

  • Two Independent LDO Channels
  • 4-mm × 4-mm, 20-Pin WQFN Package
  • Low Output Noise: 3.8 µVRMS (10 Hz to 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 Rejection Ratio (PSRR):
    • 75 dB at DC
    • 40 dB at 100 kHz
    • 40 dB at 1 MHz
  • 1.0% Accuracy Over Line, Load, and Temperature
  • Excellent Load Transient Response
  • Adjustable Start-Up In-Rush Control
  • Selectable Soft-Start Charging Current
  • Independent Open-Drain Power-Good (PGx) Outputs
  • Stable with a 10 µF or Larger Ceramic Output Capacitor

機能一覧

他の製品と比較 リニア・レギュレータ(LDO) メール Excelへダウンロード
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)
TPS7A89 ご注文 Adjustable Output     2     6.5     1.4     5.2     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     -40 to 125     33     3.8     2.30 | 1ku     Catalog     35     1     260     2.1     20QFN: 16 mm2: 4 x 4 (QFN | 20)    
TPS7A87 ご注文 Adjustable Output     0.5     6.5     1.4     5.2     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     -40 to 125     33     3.8     0.90 | 1ku     Catalog     48     1     75     2.1     20QFN: 16 mm2: 4 x 4 (QFN | 20)    
TPS7A88 ご注文 Adjustable Output     1     6.5     1.4     5.2     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Power Good
Soft Start    
2     -40 to 125     33     3.8     1.80 | 1ku     Catalog     48     1     130     2     20QFN: 16 mm2: 4 x 4 (QFN | 20)    
TPS7A88-Q1 ご注文 Adjustable Output     1     6.5     1.4     5.15     0.8     QFN | 20     Enable
Foldback Overcurrent Protection
Output Discharge
Power Good
Soft Start    
2     -40 to 140     40     3.8     2.12 | 1ku     Automotive     40     1     130     2.1     20QFN: 16 mm2: 4 x 4 (QFN | 20)