TPS7A84A 3A、高精度(0.75W)、低ノイズ(4.4μVRMS) LDO レギュレータ | TIJ.co.jp

TPS7A84A
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3A、高精度(0.75W)、低ノイズ(4.4μVRMS) LDO レギュレータ

 

推奨代替製品

  • TPS74401  -  TPS74401 は低 VOUT 範囲(0.8V ~ 3.3V)対応 3A LDO レギュレータです。
  • TPS7A84  -  TPS7A84 は 3A LDO レギュレータで、精度(1%)と熱抵抗(35.4℃/W)を向上しています。
  • TPS7A89  -  TPS7A89 はデュアル 2A LDO レギュレータで、ノイズを改善し(3.8μVrms)、4mm 角の超小型パッケージに封止されています。
  • TPS7A53-Q1  -  TPS7A53-Q1 は拡張温度範囲対応の低ノイズ 3A LDO です。

概要

The TPS7A84A is a low-noise, low-dropout linear regulator (LDO) capable of sourcing 3 A with only 180-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 5.15 V using an external resistor divider.

The combination of low-noise, high-PSRR, and high output-current capability makes the TPS7A84A 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 TPS7A84A 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-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 line, load, and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A84A ensure optimal system performance.

The versatility of the TPS7A84A makes the device a component of choice for many demanding applications.

特長

  • Low Dropout: 180 mV (maximum) at 3 A With BIAS
  • 0.75% (maximum) Accuracy Over Line, Load, and Temperature With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Output Voltage Range:
    • Adjustable Operation: 0.8 V to 5.15 V
    • ANY-OUT™ Operation: 0.8 V to 3.95 V
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Excellent Load Transient Response
  • Adjustable Soft-Start In-Rush Control
  • Low Thermal Resistance: RθJA = 43.4°C/W
  • Open-Drain Power-Good (PG) Output

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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) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS7A84A ご注文 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     Catalog     25     0.75     110     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)    
TPS7A83A ご注文 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     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)    
TPS7A85A ご注文 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     Catalog     25     0.75     150     2.8     20VQFN: 12 mm2: 3.5 x 3.5 (VQFN | 20)