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TPS7A21 - High-PSRR LDO

General Description

The TPS7A21 is an ultra-small, low-dropout (LDO) linear voltage regulator that can source 500 mA of output current.

The device provides low noise, high PSRR, and excellent load and line transient performance to meet the requirements of RF and other sensitive analog circuits.

Key Features

  • Very low IQ: 6.5 μA.
  • Input voltage range: 2.0 V to 6.0 V.
  • Output voltage range: 0.8 V to 5.5 V (50-mV steps).
  • High PSRR: 91 dB at 1 kHz.
  • Low output voltage noise: 7.7 μVRMS.
  • Low dropout:.
  • 175 mV (maximum) at 500 mA (2.5-V VOUT).
  • Smart EN pulldown.
  • Output voltage tolerance:.
  • ±1.5% (line, load, and temperature).
  • Supports wide range of ceramic capacitors:.
  • 1 µF to 200 µF.
  • Operating.

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Other Datasheets by Texas Instruments

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TPS7A21 SBVS398A – DECEMBER 2021 – REVISED SEPTEMBER 2022 TPS7A21 500-mA, Low-Noise, Low-IQ, High-PSRR LDO 1 Features • Very low IQ: 6.5 μA • Input voltage range: 2.0 V to 6.0 V • Output voltage range: 0.8 V to 5.5 V (50-mV steps) • High PSRR: 91 dB at 1 kHz • Low output voltage noise: 7.7 μVRMS • Low dropout: – 175 mV (maximum) at 500 mA (2.5-V VOUT) • Smart EN pulldown • Output voltage tolerance: – ±1.5% (line, load, and temperature) • Supports wide range of ceramic capacitors: – 1 µF to 200 µF • Operating junction temperature: –40°C to +125°C • Package: – 0.602-mm × 0.