[Link]/전자부품2010. 10. 9. 10:55

TPS7A49 LDO - Precision Analog Applications

Ultra-Low Noise Low Dropout (LDO) Voltage Regulator IC

Total Solutions for Powering Precision Analog Applications

Ultra low noise low dropout ( LDO ) voltage regulator IC for power precision analog and noise sensitive applications - TPS7A30

The TPS7A30 LDO paired with the positive voltage TPS7A49 LDO provides designers with a total solution for powering precision analog applications. The LDOs feature ultra-high power supply rejection ratio (PSRR) performance and as low as 16 µVRMS of output noise. The TPS7A30 LDO generates -200 mA, while the TPS7A49 LDO supplies 150 mA. The LDOs are designed for noise sensitive applications.

Device VIN (V) IOUT (mA) VDO (mA) IQ (µA) Datasheet Samples Evaluation
TPS7A30 -3 to -36 -200 216 55 Download PDF Download Order Samples Order Order Evalation Module Order
TPS7A49 +3 to +36 150 241 55 Download PDF Download Order Samples Order

Key Features

  • 1.5% nominal accuracy
  • Stable with >2.2–µF ceramic output capacitor
  • Low noise/high PSRR
    • Output noise as low as 16 µVRMS
    • PSRR of 72 dB @ 1 kHz and
      55 dB @ 10 kHz to 700 kHz

Key Benefits

  • Better precision for VCOs, PLLs and ADCs
  • Smaller size and lower cost versus tantalums
  • Improved dynamic range in RF applications, filters and handling of DC/DC spikes

Posted by nexp

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