UC385TDTR-1G3 Description
The UC385TDTR-1G3 is a low dropout linear regulator providing a quick response to fast load changes. Combined with its precision onboard reference, the UC385TDTR-1G3 excels at driving GTL and BTL buses. Due to its fast response to load transients, the total capacitance required to decouple the regulator’s output can be significantly decreased when compared to standard LDO linear regulators. Dropout voltage (VIN to VOUT) is only 490 mV maximum and 350 mV typical at 5-A load (0°C to 100°C). The onboard bandgap reference is stable with temperature and scaled for a 1.2 V input to the internal power amplifier. The UC385TDTR-1G3 is available in fixed output voltages of 1.5 V, 2.1 V, or 2.5 V. The output voltage of the adjustable version can be set with two external resistors. If the external resistors are omitted, the output voltage defaults to 1.2 V.
UC385TDTR-1G3 Features
Fast Transient Response
10-mA to 5-A Load Current
Short Circuit Protection
Maximum Dropout of 500-mV at 5-A Load Current
Separate Bias (VB) and VIN Pins
Available in Adjustable or Fixed Output Voltages
5-Pin Package Allows Kelvin Sensing of Load Voltage
Reverse Current Protection
UC385TDTR-1G3 Applications
Communications equipment
Datacom module
Industrial
Electronic point of sale (EPOS)
Enterprise systems
Enterprise machine
