TPS7A4901DGNT

The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 μV_RMS, 72-dB PSRR) linear regulators that can source a 150-mA load. These linear regulators include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function that allows for customized power management schemes. Other available features include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions. The TPS7A49 family is designed using bipolar technology, and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes the device an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry. In addition, the TPS7A49 family of linear regulators is suitable for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications. For applications where positive and negative high-performance rails are required, consider TI’s TPS7A30xx family of negative high-voltage, ultralow-noise linear regulators as well.

Applications

• Supply Rails for Op Amps, DACs, ADCs, and Other High-Precision Analog Circuitry
• Audio Post DC-DC Converter Regulation and Ripple Filtering
• Test and Measurement
• Rx, Tx, and PA Circuitry
• Industrial Instrumentation
• Base Stations and Telecom Infrastructure

Key features

• Input Voltage Range: 3 V to 36 V
• Noise: 12.7 μV_RMS (20 Hz to 20 kHz), 15.4 μV_RMS (10 Hz to 100 kHz)
• Power-Supply Ripple Rejection: – 72 dB (120 Hz), ≥52 dB (10 Hz to 400 kHz)
• Adjustable Output: 1.194 V to 33 V
• Output Current: 150 mA
• Dropout Voltage: 260 mV at 100 mA
• Stable with Ceramic Capacitors ≥2.2 μF
• CMOS Logic-Level-Compatible Enable Pin
• Fixed Current-Limit and Thermal Shutdown Protection
• Packages: 8-Pin HVSSOP PowerPAD and 3 mm × 3 mm SON
• Operating Temperature Range: -40°C to 125°C