CAT6219-285TDGT3

Current - Output:	500mA
Base Part Number:	CAT6219
Supplier Device Package:	TSOT-23-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	64dB ~ 54dB (1kHz ~ 20kHz)
Current - Supply (Max):	90µA
Current - Quiescent (Iq):	75µA
Series:	--
Voltage Dropout (Max):	0.5V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.85V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Cut Tape (CT)

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Introduction

CAT6219-285TDGT3 is a linear regulator for systems requiring a positive or negative adjustable output. It is developed by CA Technology. It can provide an output voltage of as low as 1.8V and up to a maximum of 7V, with a current of 500mA. It also has excellent transient response time, and low dropout voltage.

Application Fields

CAT6219-285TDGT3 can be used in any system or application which requires an adjustable voltage within the range of 1.8V to 7V. It can be used to power a variety of low-power circuit designs, including portable electronics and voltage rails for microprocessors, transceivers, etc. It can be used in automotive applications such as battery management, power conversion and actuator control.The CAT6219-285TDGT3 is used in telecom infrastructure installations, such as access routers and switch bases. It can also be used in industrial and military systems, as it can handle a wide range of input voltages, from 7V to 40V (with an external resistor).

Working Principle

The CAT6219-285TDGT3 is a linear voltage regulator. It uses an external output voltage sensing circuit in order to maintain the output at the desired level. The regulator consists of an error amplifier, a feedback circuit, and a current-source output stage driving the pass transistor.The output voltage is regulated by the error amplifier, which compares the output voltage to the desired voltage. When the two signals are not equal, the error amplifier output will change the reference voltage of the feedback circuit and the output of the current source. The output current is then adjusted accordingly, thus changing the output voltage to the desired level.The current-source output stage is capable of driving the pass transistor with a low dropout voltage. This gives the regulator excellent transient response and low dropout voltage.

Conclusion

The CAT6219-285TDGT3 is an excellent linear voltage regulator. It is ideal for powering low-power applications, such as portable electronics and voltage rails for microprocessors, transceivers, etc. It can also be used in automotive, telecom, industrial and military systems. The CAT6219-285TDGT3 uses an external output voltage sensing circuit to regulate the output voltage, and its current-source output stage is capable of driving the pass transistor with a low dropout voltage.

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