Specification	UA78M33CDCY

Current - Output	500 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	TO-261AA, TO-261-4
Protection Features	Over Temperature, Over Current, Short Circuit
PSRR	80 dB
Supplier Device Package	SOT-223-4
Voltage - Input (Max) [Max]	25 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	2 V

UA78M-Q1 Series

Automotive 500-mA, 25-V, linear voltage regulator

Part	PSRR	Output Configuration	Output Type	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	Current - Output	Grade	Voltage - Input (Max) [Max]	Number of Regulators	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Protection Features	Package / Case	Qualification
Texas Instruments UA78M05QDCYRG4Q1	80 dB	Positive	1.81 mOhm	5 V	2 V	500 mA	Automotive	25 V	1	Surface Mount	125 °C	-40 °C	SOT-223-4	Over Current Over Temperature Short Circuit	TO-261-4 TO-261AA	AEC-Q100
Texas Instruments UA78M33CKCSE3	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Through Hole	125 °C	0 °C	TO-220-3	Over Current Over Temperature Short Circuit	TO-220-3
Texas Instruments UA78M33QDCYRQ1	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA	Automotive	25 V	1	Surface Mount	125 °C	-40 °C	SOT-223-4	Over Current Over Temperature Short Circuit	TO-261-4 TO-261AA	AEC-Q100
Texas Instruments UA78M33IKVURG3	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Surface Mount	125 °C	-40 °C	TO-252-3	Over Current Over Temperature Short Circuit	DPAK (2 Leads + Tab) SC-63 TO-252-3
Texas Instruments UA78M33CDCY	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Surface Mount	125 °C	0 °C	SOT-223-4	Over Current Over Temperature Short Circuit	TO-261-4 TO-261AA
Texas Instruments UA78M33CDCYR	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Surface Mount	125 °C	0 °C	SOT-223-4	Over Current Over Temperature Short Circuit	TO-261-4 TO-261AA
Texas Instruments UA78M33QDCYRG4Q1	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA	Automotive	25 V	1	Surface Mount	125 °C	-40 °C	SOT-223-4	Over Current Over Temperature Short Circuit	TO-261-4 TO-261AA	AEC-Q100
Texas Instruments UA78M33CKVURG3	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Surface Mount	125 °C	0 °C	TO-252-3	Over Current Over Temperature Short Circuit	DPAK (2 Leads + Tab) SC-63 TO-252-3
Texas Instruments UA78M33CKC	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Through Hole	125 °C	0 °C	TO-220-3	Over Current Over Temperature Short Circuit	TO-220-3
Texas Instruments UA78M33CKCS	80 dB	Positive	1.81 mOhm	3.3 V	2 V	500 mA		25 V	1	Through Hole	125 °C	0 °C	TO-220-3	Over Current Over Temperature Short Circuit	TO-220-3

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 0.85
		10	$ 0.76
		80	$ 0.59
		320	$ 0.55
		560	$ 0.49
		1040	$ 0.45
Newark	Each	1	$ 2.43
		10	$ 2.30
		160	$ 2.15
Texas Instruments	TUBE	1	$ 1.11
		100	$ 0.76
		250	$ 0.58
		1000	$ 0.39

Description

General part information

UA78M-Q1 Series

This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. Each of these regulators can deliver up to 500 mA of output current. The internal current-limiting and thermal-shutdown features of these regulators essentially make them immune to overload. In addition to use as fixed-voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents and also as the power-pass element in precision regulators.

Documents

Technical documentation and resources

UA78M33CDCY

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UA78M33CDCY

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Technical Specifications

UA78M-Q1 Series

Pricing

Description

UA78M-Q1 Series

Documents

LDO Noise Demystified (Rev. B)

UA78M 500mA, Positive-Voltage Linear Regulator datasheet (Rev. V)

LDO PSRR Measurement Simplified (Rev. A)

UA78M-Q1 Series