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TPS7A39 - Positive and Negative LDO Voltage Regulator

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General Description

The TPS7A39 device is a dual, monolithic, highPSRR, positive and negative low-dropout (LDO) voltage regulator capable of sourcing (and sinking) up to 150 mA of current.

The regulated outputs can be independently and externally adjusted to symmetrical or asymmetrical voltages, making this device an ideal dual, bipolar power supply for signal conditioning.

Both positive and negative outputs of the TPS7A39 ratiometrically track each other during startup to mitigate floating conditions and other power-supply sequencing issues common in dual-rail systems.

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS7A39 SBVS263A – JULY 2017 – REVISED SEPTEMBER 2017 TPS7A39 Dual, 150-mA, Wide VIN Positive and Negative LDO Voltage Regulator.

Key Features

  • 1 Positive and Negative LDOs in One Package.
  • Wide Input Voltage Range: ±3.3 V to ±33 V.
  • Wide Output Voltage Range:.
  • Positive Range: 1.2 V to 30 V.
  • Negative Range:.
  • 30 V to 0 V.
  • Output Current: 150 mA per Channel.
  • Monotonic Start-Up Tracking.
  • High Power-Supply Rejection Ratio (PSRR):.
  • 69 dB (120 Hz).
  • ≥ 50 dB (10 Hz to 2 MHz).
  • Output Voltage Noise: 21 µVRMS (10 Hz.
  • 100 kHz).
  • B.

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