TPS7A9001DSKR Voltage Regulator Description

The TPS7A90 is a low-noise (4.7 μVRMS), low-dropout (LDO) voltage regulator capable of sourcing 500 mA with only 100 mV of maximum dropout to 5 V and 200 mV to 5.7 V.

The TPS7A90 output is adjustable with external resistors from 0.8 V to 5.7 V. The TPS7A90 wide input voltage range supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over the line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A90 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs)].

The TPS7A90 is intended to supply power to noise-sensitive components found in high-speed communication, video, medical, or test, and measurement applications. The 4.7-VRMS output noise and broad PSRR (30 dB at 1 MHz) reduce phase noise and clock jitter. These characteristics improve the performance of clocking devices, ADCs, and DACs.

TPS7A9001DSKR Voltage Regulator Features

Adjustable start-up in-rush control with selectable soft-start charging current

Fast transient response

1.0% accuracy over line, load, and temperature

High power-supply rejection ratio (PSRR): 30 dB at 1 MHz

Wide output voltage range: 0.8 V to 5.7 V

2.5-mm × 2.5-mm, 10-pin WSON package

Low output noise: 4.7 μVRMS (10 Hz–100 kHz)

Low dropout: 100 mV (max) at 0.5 A

Open-drain power-good (PG) output

Wide input voltage range: 1.4 V to 6.5 V

RθJC = 3.2oC/W

TPS7A9001DSKR Voltage Regulator Applications

Outdoor backhaul units

Macro remote radio units (RRU)

Sensor, imaging, and radar

Lab and field instrumentation

Ultrasound scanners

Active antenna system mMIMO (AAS)