TPS7A4700RGWR

The TPS7A47 is a family of positive voltage (+36 V), ultralow-noise (4 µVRMS) low-dropout linear regulators (LDO) capable of sourcing a 1-A load. The TPS7A4700 output voltages are user-programmable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count. The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (up to 20.5 V), or adjustable (up to 34 V) with external feedback resistors. The TPS7A47 is designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This feature makes the device ideal for powering operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry in critical applications such as medical, radio frequency (RF), and test-and-measurement. In addition, the TPS7A47 is ideal for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversions, maximum system performance is ensured in sensitive instrumentation, test-and-measurement, audio, and RF applications.

Applications

• Voltage-Controlled Oscillators (VCO)
• Frequency Synthesizers
• Test and Measurement Instrumentation
• Medical
• Audio
• RX, TX, and PA Circuitry
• Supply Rails for Operational Amplifiers, DACs, ADCs, and Other High-Precision Analog Circuitry
• Post DC-DC Converter Regulation and Ripple Filtering
• Base Stations and Telecom Infrastructure
• +12-V and +24-V Industrial Buses

Key features

• 82 dB (100 Hz), ≥55 dB (10 Hz, 10 MHz)
• Two Output Voltage Modes:
• ANY-OUT™ Version (User-Programmable Output via PCB Layout): No External Feedback Resistors or FeedForward Capacitors Required – Output Voltage Range: +1.4 V to +20.5 V
• Adjustable Version (TPS7A4701 only): – Output Voltage Range: +1.4 V to +34 V
• Output Current: 1 A
• Dropout Voltage: 307 mV at 1 A
• CMOS Logic Level-Compatible Enable Pin
• Built-In Fixed Current Limit and Thermal Shutdown
• Available in High-Performance Thermal Package: 5-mm×5-mm QFN
• Operating Temperature Range: -40°C to 125°C