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Home » NEWEST Products » New by Manufacturer » Texas Instruments » TPS7A3501 Active Filter - TI
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Texas Instruments TPS7A3501 Active Filter

Texas Instruments TPS7A3501 Active Filter

Texas Instruments TPS7A3501 is a positive voltage, low-noise (3.8 µVRMS) power filter capable of sourcing a 1A load suitable for quiet supply solutions. Power filters, such as the TPS7A3501, provide voltage regulation across the input and output terminals with high efficiency (low insertion loss), and power-supply rejection. The device is ideally-suited as a noise filter for 3.3V, 2.5V, and 1.8V supplies at up to 1A. The input-to-output voltage regulation is also user-programmable, from 200mV to 500mV, with a single external resistor. If no resistor is used, the TPS7A3501 provides 330mV of input-to-output voltage regulation. The device is stable with 10µF input and output ceramic capacitors and a 10nF noise-reduction ceramic capacitor. The TPS7A3501 is fully specified over a wide temperature of –40°C to +125°C. The device is offered in a low thermal resistance, 2-mm × 2-mm, SON-6 package. Unlike passive filters, the TPS7A3501 provides thermal and current protection for itself and surrounding circuitry.

  • User-Programmable Input-to-Output Voltage Regulation Range: 200 mV to 500 mV
  • Power-Supply Rejection Ratio:
    • 42 dB at 1 MHz
    • ≥32dB (360kHz to 3.9MHz)
  • Low-Noise Output: 3.8µVRMS (10 Hz to 100 kHz)
  • Output Current: Up to 1 A
  • Output Voltage Range: 1.21 V to 4.5 V
  • Excellent Load Transient Response
  • Stable with Ceramic Capacitors as Low as 10 µF
  • Current Limit and Thermal Shutdown for Fault Protection
  • Available in a Low Thermal Resistance Package: 2mm × 2mm SON-6
  • Operating Temperature Range: –40°C to +125°C
  • Post DC/DC converter ripple filtering
  • Base stations and telecom infrastructure
  • Professional audio
  • Communications
  • Imaging
  • Test and measurement
  • Passive filter replacement
Block Diagram
Block Diagram
  • Texas Instruments | Power Management