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.
●For applications where positive and negative low-noise rails are required, consider TIs TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.
● Input Voltage Range: +3 V to +36 V
● Output Voltage Noise:
●4 µVRMS (10 Hz, 100 kHz)
● Power-Supply Ripple Rejection:
● 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
●Feed-Forward 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
