UC385T-2

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Texas Instruments

5-A, ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH REVERSE CURRENT PROTECTION FROM 0°C TO 100°C

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Search across all available documentation for this part.

DocumentsFast Transient Response, 5-A Low-Dropout Regulator datasheet (Rev. F)UC285-1/2/3/ADJ, UC385-1/2/3/ADJ +1

UC385T-2

Active

Texas Instruments

5-A, ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH REVERSE CURRENT PROTECTION FROM 0°C TO 100°C

Deep-Dive with AI

DocumentsFast Transient Response, 5-A Low-Dropout Regulator datasheet (Rev. F)UC285-1/2/3/ADJ, UC385-1/2/3/ADJ +1

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UC385T-2

Current - Output	5 A
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature [Max]	100 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	TO-220-5
Protection Features	Reverse Polarity, Over Temperature, Short Circuit
Supplier Device Package	TO-220-5
Voltage - Input (Max) [Max]	7.5 V
Voltage - Output (Min/Fixed)	2.1 V

UC385 Series

Part	Number of Regulators	Voltage - Input (Max) [Max]	Package / Case	Output Configuration	Supplier Device Package	Current - Output	Voltage - Output (Min/Fixed)	Output Type	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Protection Features	Output Type	Regulator Type	Channels per IC	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Supplied Contents	Utilized IC / Part	Board Type
Texas Instruments UC385T-2	1	7.5 V	TO-220-5	Positive	TO-220-5	5 A	2.1 V	1.81 mOhm	0 °C	100 °C	Through Hole	Over Temperature Reverse Polarity Short Circuit
Texas Instruments UC385TDTR-ADJ	1	7.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Positive	TO-263 (DDPAK-5)	5 A	1.2 V		0 °C	100 °C	Surface Mount	Over Temperature Reverse Polarity Short Circuit	Adjustable (Fixed)
Texas Instruments UC385TDKTTT-ADJG3	1	7.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Positive	TO-263 (DDPAK-5)	5 A	1.2 V		0 °C	100 °C	Surface Mount	Over Temperature Reverse Polarity Short Circuit	Adjustable (Fixed)
Texas Instruments UC385TDTR-3	1	7.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Positive	TO-263 (DDPAK-5)	5 A	2.5 V	1.81 mOhm	0 °C	100 °C	Surface Mount	Over Temperature Reverse Polarity Short Circuit
Texas Instruments UC385TDKTTT-2	1	7.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Positive	TO-263 (DDPAK-5)	5 A	2.1 V	1.81 mOhm	0 °C	100 °C	Surface Mount	Over Temperature Reverse Polarity Short Circuit
Texas Instruments UC385EVM-207						5 A								Positive Adjustable	1 - Single	7.5 V	1.7 V	1.2 V	Board(s)	UC385	Fully Populated
Texas Instruments UC385TDTR-1	1	7.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Positive	TO-263 (DDPAK-5)	5 A	1.5 V	1.81 mOhm	0 °C	100 °C	Surface Mount	Over Temperature Reverse Polarity Short Circuit
Texas Instruments UC385TDKTTT-1	1	7.5 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Positive	TO-263 (DDPAK-5)	5 A	1.5 V	1.81 mOhm	0 °C	100 °C	Surface Mount	Over Temperature Reverse Polarity Short Circuit
Texas Instruments UC385T-1	1	7.5 V	TO-220-5	Positive	TO-220-5	5 A	1.5 V	1.81 mOhm	0 °C	100 °C	Through Hole	Over Temperature Reverse Polarity Short Circuit
Texas Instruments UC385T-3	1	7.5 V	TO-220-5	Positive	TO-220-5	5 A	2.5 V	1.81 mOhm	0 °C	100 °C	Through Hole	Over Temperature Reverse Polarity Short Circuit

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	100	$ 8.26
Texas Instruments	TUBE	1	$ 9.60
		100	$ 8.38
		250	$ 6.46
		1000	$ 5.78

Description

General part information

UC385 Series

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.

Documents

Technical documentation and resources

Fast Transient Response, 5-A Low-Dropout Regulator datasheet (Rev. F)

Data sheet

UC285-1/2/3/ADJ, UC385-1/2/3/ADJ

Datasheet