S-13A1C29-U5T1U3

Current - Output:	1A
Supplier Device Package:	SOT-89-5
Package / Case:	SOT-89-5/6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Inrush Current Limit, Over Current, Thermal Shutdown
Control Features:	Enable
PSRR:	65dB (1kHz)
Current - Supply (Max):	90µA
Current - Quiescent (Iq):	1µA
Series:	S-13A1
Voltage Dropout (Max):	0.1V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.9V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

S-13A1C29-U5T1U3 is a new voltage regulator that has been introduced by Linear Techonology as a part of their ranges of PMIC (Power Management IC) solutions. It is a three terminal voltage regulator which offers adjustable operating voltage from an input range of 5V to 40V. This regulator is able to provide higher current and power compared to the other lower active current solutions for the same range of input voltage.The voltage regulator S-13A1C29-U5T1U3 is designed for a wide range of applications such as switched-mode power supplies (SMPS), DC/DC converters, energy storage/conversion, motor control, automotive or industrial applications.

Application field

The S-13A1C29-U5T1U3 is a standard-sized three-pin voltage regulator which can be used in many applications. It offers adjustable output voltage with a range of 5V to 40V and a higher current and power compared to the other lower active current solutions for the same range of input voltage. This makes it suitable for application in switched-mode power supplies (SMPS) where large currents and small output voltages are required. The other applications include DC/DC inverter, adjustable current source, battery charging, motor control, automotive and industrial applications. The voltage regulator can be used for the conversion of Direct Current (DC) to Alternating Current (AC) or vice versa and for the generation of different voltage levels in various processors, controllers and other electronic devices.The voltage regulator S-13A1C29-U5T1U3 has two pins for enabling, controlling and monitoring: an ENABLE pin and a TRIP pin. The ENABLE pin is used to control the input voltage and the output voltage of the voltage regulator. The TRIP pin is used for monitoring the voltage of the voltage regulator and for setting a firewall for the regulation process.

Working principle

The voltage regulator S-13A1C29-U5T1U3 has two control and monitoring pins: an ENABLE pin and a TRIP pin. The ENABLE pin is used to control the input and output voltage of the voltage regulator. The TRIP pin is used for monitoring the voltage of the voltage regulator and for setting a firewall for the regulator process. The S-13A1C29-U5T1U3 implements a linear regulation technology. This kind of regulation process is based on a controlled current loop through a negative feedback system. The regulator adjusts the output voltage according to the feedback signal with the aid of the voltage reference. This is why the regulation process is also called “closed-loop” control.The voltage reference on the regulator affects the output voltage sensitivity. The cutoff voltage of the reference can be set through the ENABLE pin. When the voltage on the ENABLE pin exceeds the reference voltage, the voltage regulator turns the output on and maintains it.The voltage regulator also has protection features. The TRIP pin is an output monitoring pin that triggers the protection feature when the output voltage exceeds the safe maximum operating voltage. This protection feature prevents the voltage regulator from overvoltage and decreases the damage caused by overcurrent.

Conclusion

The S-13A1C29-U5T1U3 voltage regulator from Linear Technology is a three-terminal voltage regulator designed for a range of applications. It implements a linear regulation technology and offers adjustable operating voltage from an input range of 5V to 40V. The device offers higher current and power compared to other lower active current solutions for the same range of input voltage and thus is suitable for switched-mode power supplies (SMPS), DC/DC converters, energy storage/conversion, motor control, automotive or industrial applications. The ENABLE and TRIP pins offer control and monitoring functions to ensure the regulation process maintains a constant output voltage and also protect it from overvoltage.

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