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TPS7A8500RGRT

High-Current (4A), High-Accuracy (1%), Low-Noise (4.4μVRMS), LDO Voltage Regulator

Packaging

Package | PIN: VQFN (RGR) | 20
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $7.76
10-24 $6.98
25-99 $6.52
100-249 $5.84
250-499 $5.46
500-749 $4.75
750-999 $4.11
1000+ $4.03

Features

  • Low Dropout: 150 mV (typ) at 4 A
  • 1% (max) Accuracy Over Line, Load, and Temperature
  • Output Voltage Noise:
    • 4.4 µVRMS at 0.8-V Output
    • 8.4 µVRMS at 5.0-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 5.0 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 47-µF or Larger Ceramic Output Capacitor
  • Operating Temperature Range:
    –40ºC to +125°C
  • 3.5-mm × 3.5-mm, 20-Pin VQFN

Texas Instruments  TPS7A8500RGRT

The TPS7A85 is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 4 A with only 240 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 5.0 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A85 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 TPS7A85 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 5.0-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 TPS7A85 ensure optimal system performance.

The versatility of the TPS7A85 makes the device a component of choice for many demanding applications.