TI TPS7A3501DRVR

The TPS7A3501 is a positive voltage, low-noise (3.8μV_RMS) power filter capable of supplying 1A loads, making it ideal for low-noise power supply solutions. Power filters such as the TPS7A3501 provide efficient voltage regulation (low insertion loss) and power supply rejection at the input and output pins. This device is well suited for use as a power noise filter at a maximum current of 1A with supply voltages of 3.3V, 2.5V, and 1.8V.

Using a single external resistor, the user can program the input-to-output regulation voltage in the range of 200mV to 500mV. If no resistor is used, the TPS7A3501 provides 330mV of input-to-output voltage regulation. This device remains stable when used with 10μF input and output ceramic capacitors and a 10nF noise-reduction ceramic capacitor.

The TPS7A3501 is rated for an operating temperature range of -40°C to 125°C. The device is available in a low thermal resistance 2mm×2mm WSON-6 package. Unlike passive filters, the TPS7A3501 provides overtemperature protection and current protection for itself and surrounding circuitry.

• Stable input-to-output voltage: user-programmable dropout voltage range: 200mV to 500mV
• Power supply rejection ratio: 42dB at 1MHz, ≥32dB (360kHz to 3.9MHz)
• Low noise output: 3.8μV_RMS (10Hz to 100kHz)
• Output current: up to 1A
• Output voltage range: 1.21V to 4.5V
• Excellent load transient response
• Stable with ceramic capacitors as low as 10μF
• Current limiting and thermal shutdown fault protection
• Low thermal resistance package: 2mm×2mm WSON-6
• Operating temperature range: -40°C to 125°C

• Post DC/DC converter ripple filtering
• Base station and telecom infrastructure
• Professional audio
• Communications
• Imaging
• Test and measurement
• Passive filter replacement