TPS785-Q1 Ultra Low-Dropout (LDO) Regulator Texas Instruments TPS785-Q1 Ultra Low-Dropout (LDO) Regulators are small low quiescent current LDOs that can source 1A with excellent line and load transient performance. The low output noise and great PSRR performance make the device suitable for power-sensitive analog loads. The TPS785-Q1 is a flexible device for post-regulation because this device supports an input voltage range from 1.7V to 6.0V and offers an adjustable output range of 1.2V to 5.5V. The device also features fixed output voltages from 0.65V to 5.0V for powering common voltage rails.