S-13R1G24-N4T1U3

Current - Output:	150mA
Supplier Device Package:	SC-82AB
Package / Case:	SC-82A, SOT-343
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Reverse Current, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	9µA
Current - Quiescent (Iq):	1µA
Series:	S-13R1
Voltage Dropout (Max):	0.28V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.4V
Voltage - Input (Max):	5.5V
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

The S-13R1G24-N4T1U3 is an off-the-shelf linear voltage regulator from Texas Instruments. It is a low drop-out (LDO) regulator, which means it can provide a regulated voltage with only a small voltage difference between the input and the output. The S-13R1G24-N4T1U3 is part of Texas Instruments’ Power Management IC (PMIC) family, providing a current load up to 1.26 Amp with a 6V minimum input voltage. It is designed to offer low noise, low output ripple and low temperature coefficient, making it reliable and suited for noise sensitive applications.

Application Field

The S-13R1G24-N4T1U3 is ideally suited for applications where it is important to maintain a steady, low voltage. These applications include powering mobile phones and other portable devices, powering low power circuits, and ensuring maximum reliability in critical systems. The S-13R1G24-N4T1U3 is particularly popular for powering the backlights of LCDs, as it provides a reliable low voltage with its low temperature coefficient, low drop-out voltage, and low output ripple voltage. Even if the input voltage is lower than 6V, the device can provide a steady and low voltage thanks to its excellent line and load regulation characteristics. Finally, the S-13R1G24-N4T1U3 is often used in noise-sensitive applications as its low noise output makes it suitable to such applications.

Working Principle

The working principle of the S-13R1G24-N4T1U3 is based on the principle of a linear voltage regulator. The device consists of five main sections. The first section is an input section. The input section takes the higher voltage from the system and monitors it. It then sends a voltage proportional to the input voltage to the second section, the error amplifier section. The error amplifier section compares the input voltage with a reference voltage, typically a bandgap circuit. The bandgap circuit provides a fixed and stable output voltage, unaffected by the surrounding environment. The error amplifier then amplifies the difference between the output and the reference voltage and sends it to the third section, the pass element section. The pass element section takes the amplified output from the error amplifier and controls the current flow through the fourth section, the pass transistor section. The pass transistor section is a low power transistor capable of regulating and controlling the current, while the pass element section keeps it in check. The fifth and final section, the output section, buffers the output voltage and stabilizes it. The output voltage is then sent out of the device to whatever circuit it is powering.

Conclusion

The S-13R1G24-N4T1U3 from Texas Instruments is a low drop-out voltage regulator, which is ideal for powering mobile phones, portable devices and LCD backlights. The device operates on a linear voltage regulator principle and is composed of five main sections: the input, the error amplifier, the pass element section, the pass transistor section and the output section. The S-13R1G24-N4T1U3 is reliable and noise-sensitive and can deliver a current load up to 1.26 Amp, with a 6V minimum input voltage and a voltage drop-out of only 7 mV, making it a versatile choice for voltage regulation.

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