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Documents TPS7A91
SBVS282 – DECEMBER 2016 TPS7A91
1-A, High-Accuracy, Low-Noise LDO Voltage Regulator
1 Features 3 Description The TPS7A91 is a low-noise (4.7 ВµVRMS), low-dropout
(LDO) voltage regulator capable of sourcing 1 A with
only 200 mV of maximum dropout. 1 1.0% Accuracy Over Line, Load, and Temperature
Low Output Noise: 4.7 µVRMS (10 Hz–100 kHz)
Low Dropout: 200 mV (max) at 1 A
Wide Input Voltage Range: 1.4 V to 6.5 V
Wide Output Voltage Range: 0.8 V to 5.2 V
High Power-Supply Ripple Rejection (PSRR):
– 70 dB at DC
– 40 dB at 100 kHz
– 40 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 …
