Specification	UA78M05CDCYR

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)	5 V
Voltage Dropout (Max) [Max]	2 V

UA78M05 Series

500mA 35V linear voltage regulator

Part	Package / Case	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]	Output Configuration	Number of Regulators	Supplier Device Package	Output Type	Voltage - Output (Min/Fixed)	Mounting Type	PSRR	Protection Features	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Grade	Qualification
Texas Instruments UA78M05IKTPR	DPAK (2 Leads + Tab) SC-63 TO-252-3	25 V	2 V	Positive	1	TO-252-3	1.81 mOhm	5 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	-40 °C
Texas Instruments UA78M05QDCYRG4Q1	TO-261-4 TO-261AA	25 V	2 V	Positive	1	SOT-223-4	1.81 mOhm	5 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	-40 °C	Automotive	AEC-Q100
Texas Instruments UA78M05IKCSE3	TO-220-3	25 V	2 V	Positive	1	TO-220-3	1.81 mOhm	5 V	Through Hole	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	-40 °C
Texas Instruments UA78M12CKVURG3	DPAK (2 Leads + Tab) SC-63 TO-252-3	30 V	2 V	Positive	1	TO-252-3	1.81 mOhm	12 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	0 °C
Texas Instruments UA78M05CDCYR	TO-261-4 TO-261AA	25 V	2 V	Positive	1	SOT-223-4	1.81 mOhm	5 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	0 °C
Texas Instruments UA78M05CKTPRG3
Texas Instruments UA78M15CKC
Texas Instruments UA78M05IKTPRG3	DPAK (2 Leads + Tab) SC-63 TO-252-3	25 V	2 V	Positive	1	TO-252-3	1.81 mOhm	5 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	-40 °C
Texas Instruments UA78M05IDCYG3	TO-261-4 TO-261AA	25 V	2 V	Positive	1	SOT-223-4	1.81 mOhm	5 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	-40 °C
Texas Instruments UA78M33CDCY	TO-261-4 TO-261AA	25 V	2 V	Positive	1	SOT-223-4	1.81 mOhm	3.3 V	Surface Mount	80 dB	Over Current Over Temperature Short Circuit	500 mA	125 °C	0 °C

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.76
		10	$ 0.67
		25	$ 0.63
		100	$ 0.51
		250	$ 0.47
		500	$ 0.40
		1000	$ 0.32
	Digi-Reel®	1	$ 0.76
		10	$ 0.67
		25	$ 0.63
		100	$ 0.51
		250	$ 0.47
		500	$ 0.40
		1000	$ 0.32
	Tape & Reel (TR)	2500	$ 0.29
		5000	$ 0.27
		12500	$ 0.26
		25000	$ 0.25
Newark	Each (Supplied on Cut Tape)	1	$ 1.17
		10	$ 1.13
		25	$ 1.10
		50	$ 1.06
		100	$ 1.03
		250	$ 1.01
		500	$ 1.00
		1000	$ 0.99
Texas Instruments	LARGE T&R	1	$ 0.49
		100	$ 0.38
		250	$ 0.28
		1000	$ 0.20

Description

General part information

UA78M05 Series

The UA78M fixed-voltage integrated-circuit voltage regulator is designed for a wide range of applications. Use the UA78M for on-card regulation to attenuate post regulation noise and distribution problems associated with single-point regulation. The UA78M delivers up to 500mA of output current. Additionally, the UA78M does not need external components for stable operation across the load current range. The internal current-limiting and thermal-shutdown features of this regulator help protect the device from overload.

The UA78M is characterized for the junction temperature range of –40°C to +125°C. Device performance for new and legacy chips is denoted throughout the document. See the Device Nomenclature table for more details.

Documents

Technical documentation and resources

Datasheet

LDO PSRR Measurement Simplified (Rev. A)

Application note

LDO Noise Demystified (Rev. B)

Application note