UC285 Series

5-A, ultra-low-dropout voltage regulator with reverse current protection from -40°C to 100°C

Catalog(6 parts)

Part	Voltage - Output (Min/Fixed)▲▼	Number of Regulators▲▼	Package / Case	Voltage Dropout (Max)▲▼	Current - Output▲▼	Mounting Type	Operating Temperature▲▼	Operating Temperature▲▼	Voltage - Input (Max)▲▼	Protection Features	Supplier Device Package	Output Type	Output Configuration	Output Type▲▼
Texas Instruments UC285T-ADJ Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 5A TO-220-5	1.2000000476837158 V	1 ul	TO-220-5	2.200000047683716 V	5 A	Through Hole	100 °C	-40 °C	7.5 V	Over Temperature, Reverse Polarity, Short Circuit	TO-220-5	Adjustable (Fixed)	Positive
Texas Instruments UC285T-3 Linear Voltage Regulator IC Positive Fixed 1 Output 5A TO-220-5	2.5 V	1 ul	TO-220-5	2.200000047683716 V	5 A	Through Hole	100 °C	-40 °C	7.5 V	Over Temperature, Reverse Polarity, Short Circuit	TO-220-5		Positive	27.030000686645508 °C/W
Texas Instruments UC285T-ADJG3 Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 5A TO-220-5	1.2000000476837158 V	1 ul	TO-220-5	2.200000047683716 V	5 A	Through Hole	100 °C	-40 °C	7.5 V	Over Temperature, Reverse Polarity, Short Circuit	TO-220-5	Adjustable (Fixed)	Positive
Texas Instruments UC285TDKTTT-ADJ Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 5A TO-263 (DDPAK-5)	1.2000000476837158 V	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	2.200000047683716 V	5 A	Surface Mount	100 °C	-40 °C	7.5 V	Over Temperature, Reverse Polarity, Short Circuit	TO-263 (DDPAK-5)	Adjustable (Fixed)	Positive
Texas Instruments UC285T-1G3 Linear Voltage Regulator IC Positive Fixed 1 Output 5A TO-220-5	1.5 V	1 ul	TO-220-5	2.200000047683716 V	5 A	Through Hole	100 °C	-40 °C	7.5 V	Over Temperature, Reverse Polarity, Short Circuit	TO-220-5		Positive	27.030000686645508 °C/W
Texas Instruments UC285TDKTTT-1 Linear Voltage Regulator IC Positive Fixed 1 Output 5A TO-263 (DDPAK-5)	1.5 V	1 ul	D2PAK (5 Leads + Tab), TO-263-6, TO-263BA	2.200000047683716 V	5 A	Surface Mount	100 °C	-40 °C	7.5 V	Over Temperature, Reverse Polarity, Short Circuit	TO-263 (DDPAK-5)		Positive	27.030000686645508 °C/W

Key Features

• Fast Transient Response10-mA to 5-A Load CurrentShort Circuit ProtectionMaximum Dropout of 500-mV at 5-A Load CurrentSeparate Bias (VB) and VIN PinsAvailable in Adjustable or Fixed Output Voltages5-Pin Package Allows Kelvin Sensing of Load VoltageReverse Current ProtectionAll trademarks are the property of their respective owners.Fast Transient Response10-mA to 5-A Load CurrentShort Circuit ProtectionMaximum Dropout of 500-mV at 5-A Load CurrentSeparate Bias (VB) and VIN PinsAvailable in Adjustable or Fixed Output Voltages5-Pin Package Allows Kelvin Sensing of Load VoltageReverse Current ProtectionAll trademarks are the property of their respective owners.

Description

The UC385 is a low dropout linear regulator providing a quick 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 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 UC385 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. The UC385 is a low dropout linear regulator providing a quick 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 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 UC385 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.