S-812C55AUA-C3JT2G

Current - Output:	75mA
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	--
Control Features:	--
PSRR:	--
Current - Supply (Max):	2.5µA
Current - Quiescent (Iq):	500nA
Series:	S-812C
Voltage Dropout (Max):	0.23V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5.5V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

S-812C55AUA-C3JT2G is an integrated linear voltage regulator from ON Semiconductor. The part has a nominal input voltage rating of 6.5V, a maximum output voltage of 3.3V, and a maximum operating temperature of 150°C. This voltage regulator is a low-dropout (LDO) regulator and has a typical dropout of 130mV when delivering a load current of 1A.

Applications

As linear voltage regulators, these parts are ideal for various power supply applications and can be used in a wide variety of systems. With its low-dropout performance, this part can be used in demanding applications such as automotive, industrial, medical, and telecom/datacom equipment. It is also suitable for memory and processor core voltage regulation and in battery powered applications.

Working Principle

The S-812C55AUA-C3JT2G is a three-terminal, low drop out regulator. It is composed of an internal p-channel MOSFET, which is used as a pass element, and an error amplifier. The output voltage is regulated by comparing the voltages on the the Bias Input (BIAS) pin and the Adjust Voltage (ADJ) pin. This comparator then switches the p-channel MOSFET off or on, and the output voltage is regulated at the set value. The S-812C55AUA-C3JT2G also features an over-current protection (OCP) circuit which will shut down the part when the load current reaches 1.0A of continuous current. This protection circuit monitors the output current and will turn the output off if it exceeds the limit. This will prevent damage to the system due to over-current events.

Conclusion

The S-812C55AUA-C3JT2G is a high-performance three terminal linear voltage regulator from ON Semiconductor. It can be used in a variety of applications due to its low-dropout performance and over-current protection circuit. The part is ideal for automotive, industrial, medical, and telecom/datacom implementations and is suitable for use in memory, processor core voltage regulation and in battery powered applications.

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