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SBVS324 – JUNE 2017 TPS7A90
500-mA, High-Accuracy, Low-Noise LDO Voltage Regulator
1 Features 3 Description The TPS7A90 device is a low-noise (4.7 ВµVRMS), lowdropout (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. 1 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 …