[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
Module
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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