KA278R33C Series

2A Fixed 3.3V Low Dropout Voltage Regulator (LDO)

Catalog

2A Fixed 3.3V Low Dropout Voltage Regulator (LDO)

Part	Output Configuration	Current - Output	Number of Regulators	Voltage - Input (Max) [Max] [custom]	Mounting Type	Output Type	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Voltage - Output (Min/Fixed)	Protection Features	Control Features	Supplier Device Package	Voltage - Output (Max) [Max]	Output Type	Voltage - Output (Min/Fixed) [Min]
ON Semiconductor KA278R12CTSTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack	-20 C	80 C	10 mA	0.5 V	12 V	Over Current Over Temperature Over Voltage Short Circuit
ON Semiconductor KA278R33CTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack	-20 C	80 C	10 mA	0.5 V	3.3 V	Over Current Over Temperature Over Voltage Short Circuit	Enable	TO-220F-4
ON Semiconductor KA278R33CTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack	-20 C	80 C	10 mA	0.5 V	3.3 V	Over Current Over Temperature Over Voltage Short Circuit
ON Semiconductor KA278R12CTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack	-20 C	80 C	10 mA	0.5 V	12 V	Over Current Over Temperature Over Voltage Short Circuit
ON Semiconductor KA278R09CYDTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack Formed Leads	-20 C	80 C	10 mA	0.5 V	9 V	Over Current Over Temperature Over Voltage Short Circuit		TO-220F-4L (Forming)
ON Semiconductor KA278RA05CYDTU	Positive	2 A	1	35 V	Through Hole		TO-220-4 Full Pack Formed Leads	-20 C	80 C	10 mA	0.5 V		Over Current Over Temperature Over Voltage Short Circuit		TO-220F-4L (Forming)	32 V	Adjustable (Fixed)
ON Semiconductor KA278R51CTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack	-20 C	80 C	10 mA	0.5 V		Over Current Over Temperature Over Voltage Short Circuit					5.1 V
ON Semiconductor KA278R05CYDTU	Positive	2 A	1	35 V	Through Hole	1.81 mOhm	TO-220-4 Full Pack Formed Leads	-20 C	80 C	10 mA	0.5 V	5 V	Over Current Over Temperature Over Voltage Short Circuit		TO-220F-4L (Forming)

Catalog

2A Fixed 3.3V Low Dropout Voltage Regulator (LDO)

Key Features

• KA278RXXC-series (33/05/51/09/12)

• 2A/3.3V, 5V, 5.1V, 9V, 12V output low dropout voltage regulator

• TO-220 full-mold package (4pin)

• Overcurrent protection, thermal shutdown

• Overvoltage protection, short circuit protection

• With output disable function KA278RA05C

• Nominal 5V output without adjusting

• Output adjustable between 1.25V and 32V

• 2A output low dropout voltage regulator

• TO-220 full-mold package (4pin)

• Overcurrent protection, thermal shutdown

• Overvoltage protection, short circuit protection

Description

The KA278RXXC is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220-4 lead full mold package. The dropout voltage of KA278RXXC is below 0.5V in full rated current (2A). This regulator has various functions such as a peak current protection, a thermal shut down, an overvoltage protection.