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TPS720 - RF Low-Dropout Linear Regulator

General Description

The TPS720 family of dual rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response), while consuming a very low quiescent current of 38 μA.

Key Features

  • 1 350-mA High-Performance LDO.
  • Low Quiescent Current: 38 μA.
  • Excellent Load Transient Response: ±15 mV for ILOAD = 0 mA to 350 mA in 1 μs.
  • Excellent Line Transient Response: ΔVOUT = ±2 mV for ΔVBIAS = ±600 mV in 1 μs ΔVOUT = ±200 μV for ΔVIN = ±400 mV in 1 μs.
  • Low Noise: 48 μVRMS (10 Hz to 100 kHz).
  • 80 dB VIN PSRR (10 Hz to 10 kHz).
  • 70 dB VBIAS PSRR (10 Hz to 10 kHz).
  • Fast Start-Up Time: 140 μs.
  • Built-In Soft-Start.

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Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design TPS720 SBVS100E – JUNE 2008 – REVISED SEPTEMBER 2015 TPS720 350 mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator With Bias Pin 1 Features •1 350-mA High-Performance LDO • Low Quiescent Current: 38 μA • Excellent Load Transient Response: ±15 mV for ILOAD = 0 mA to 350 mA in 1 μs • Excellent Line Transient Response: ΔVOUT = ±2 mV for ΔVBIAS = ±600 mV in 1 μs ΔVOUT = ±200 μV for ΔVIN = ±400 mV in 1 μs • Low Noise: 48 μVRMS (10 Hz to 100 kHz) • 80 dB VIN PSRR (10 Hz to 10 kHz) • 70 dB VBIAS PSRR (10 Hz to 10 kHz) • Fast Start-Up Time: 140 μs • Built-In Soft-Start With Monotonic VOUT Rise and Start-Up Current Limited to 100 mA + ILOAD • Overcurrent and Thermal Protection • Low Dropout: 1