Packaging information
| Package | Pins WSON (DSK) | 10 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TPS7A90
- 1.0% accuracy over line, load, and temperature
- Low output noise: 4.7 µVRMS (10 Hz–100 kHz)
- Low dropout: 100 mV (max) at 0.5 A
- Wide input voltage range: 1.4 V to 6.5 V
- Wide output voltage range: 0.8 V to 5.7 V
- High power-supply rejection ratio (PSRR):
- 60 dB at DC
- 50 dB at 100 kHz
- 30 dB at 1 MHz
- Fast transient response
- Adjustable start-up in-rush control with selectable soft-start charging current
- Open-drain power-good (PG) output
- RθJC = 3.2ºC/W
- 2.5-mm × 2.5-mm, 10-pin WSON package
Description for the TPS7A90
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 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 designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 4.7-µVRMS output noise and wideband PSRR (30 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.