S-1312A33-M5T1U3

Current - Output:	150mA
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Thermal Shutdown
Control Features:	Enable
PSRR:	65dB (1kHz)
Current - Supply (Max):	30µA
Current - Quiescent (Iq):	1µA
Series:	S-1312
Voltage Dropout (Max):	0.27V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
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-1312A33-M5T1U3 is a linear voltage regulator from Semtech Corporation. It is an integrated circuit designed to provide a regulated voltage from an unregulated supply. This regulator is particularly useful in industrial and commercial applications as it simplifies the power management setup.

Application Field

The S-1312A33-M5T1U3 is typically suited for applications where space, cost and performance are important. It is commonly used in automotive, telecommunication, computer and industrial systems.The regulator has been developed to make power management solution flexible, efficient and available at a competitive cost. It is available in a thermally enhanced SOT-223 package and provides maximum reliability and protections.In addition, this regulator\'s features make it especially suitable for automotive design where board space is limited. It is ideal for applications that require high-accuracy voltage regulation and is suitable for testing and industrial applications as well.

Working Principle

The S-1312A33-M5T1U3 regulator works by controlling the output current with an internal MOSFET.The MOSFET is driven with a voltage from the input source. The internal MOSFET rectifies by converting input voltage to the desired output voltage. As the input voltage or current to the MOSFET increases, the MOSFET increases voltage gain and current reduction. This creates an ability to provide accurate voltage regulation even over wide supply ranges.The output voltage of the S-1312A33-M5T1U3 is also monitored by an internal voltage reference IC that serves as the comparator used to compare the current to the expected output voltage. If the voltage deviates from the reference, the internal error amplifier adjusts the output current through the driver to bring the output voltage back in line with the desired regulation.The S-1312A33-M5T1U3 has several key features that make it ideal for power management applications. It has an under-voltage lockout (UVLO) to protect it from damage due to over-current, it has an on-board reverse voltage protection (RVP) to prevent damage caused by short circuits, and it has adjustable overload current limit.

Summary

The S-1312A33-M5T1U3 linear voltage regulator from Semtech Corporation is an integrated circuit designed to provide a regulated voltage from an unregulated supply. It is commonly used in automotive, telecommunication, computer, and industrial systems. Its features make it particularly suited for power management applications where space, cost and performance are important. It works by controlling the output current with an internal MOSFET and monitoring the output voltage with an internal voltage reference IC. It also has several key features that make it suitable for the field such as an under-voltage lockout (UVLO) to protect it from damage due to over-current and a reverse voltage protection (RVP) to prevent damage caused by short circuits.

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