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2022-09-24 23:29:15
UC285-1 - Fast Transient Response 5 A Low Dropout Regulator
fast transient response
10 mA to 5 load current short circuit protection
5 Load Current 500- MV Maximum Dropout Separate Bias (VB) and VIN Pins Available in Adjustable or Fixed Output Voltage
5-Pin Package Allows Load Voltage Sensing Kelvin Reverse Current Protection
The UC385 is a low dropout linear regulator providing fast response to fast load changes. Combined with its precision onboard reference, the UC385 excels at driving GTL and BTL buses. Due to its fast response to load transients, the total capacitance required for the regulator to separate the output from the output can be significantly reduced compared to standard LDO linear regulators. Dropout voltage (VIN to VOUT) is only 490 mV max. 350 mV typical 5 loads (0 C to 100 C). The onboard bandgap reference is a temperature stable, intrinsically power scaling amplifier with a 1.2 V input. The UC385 is available in an adjustable version with a fixed output voltage of 1.5 V, 2.1 V or 2.5 V which can be set by two external resistors. If the external resistor is omitted, the output voltage defaults to 1.2 V.