S-1313B14-M5T1U3

Current - Output:	200mA
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:	--
Current - Supply (Max):	1.35µA
Current - Quiescent (Iq):	100nA
Series:	S-1313
Voltage Dropout (Max):	0.99V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.4V
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-1313B14-M5T1U3 is a linear voltage regulator from PMIC (Power Management Integrated Circuits) that is typically used to provide stable regulated power supply to circuits. It is an adjustable low-dropout (LDO) unit capable of providing fixed or adjustable output voltage between 1.25 to 3.8 V with an output current of up to 500 mA. It also features other important protections such as over temperature protection, short-circuit protection, capable of absorbing up to 2A peak surge current and internally eliminates load transients.

Application Field

Due to its versatile nature and wide operating range, S-1313B14-M5T1U3 is ideal for a wide range of applications where adjustable output voltage and/or current is required. It is widely used in automotive applications such as head up displays for cars; GPS, Bluetooth and Wi-Fi modules for vehicles; driver information systems (DIS); remote controller and sensor modules; ECUs and BMS (Battery Management System). It is also suitable for various communication systems due to the wide adjustable output range required for the wide dynamic load range.Apart from automotive products, S-1313B14-M5T1U3 is also suitable for industrial applications such as industrial PCs, automation controllers and distributed control systems. It supports a wide output voltage range and provides better thermal performance, allowing a wider temperature range (-40 to +125 °C). In addition, it has built-in short-circuit protection and maximum current handling capability up to 500 mA.

Working Principle

The S-1313B14-M5T1U3 voltage regulator contains an internal P-MOS transistor (PMOS) connected in series with an adjustable voltage reference. By controlling the gate voltage of the PMOS through an external resistor, an adjustable output voltage is obtained.When the power supply voltage is greater than the output voltage set by the reference, the PMOS is turned on. This draws power from the supply into the output and generates the output voltage. The current in this mode is controlled by the gate voltage, which is determined by the external resistor connected to the PMOS gate.When the power supply voltage is lower than the output voltage set by the reference, the PMOS is turned off. This allows power to flow from the output to the power supply and keeps the output voltage constant. The current in this mode is limited by the external resistor connected to the PMOS gate.

Conclusion

In conclusion, the S-1313B14-M5T1U3 voltage regulator is a versatile linear voltage regulator capable of providing fixed or adjustable output voltage between 1.25 to 3.8 V with an output current of up to 500 mA. It is suitable for a wide range of applications such as automotive, industrial and communication products. Its working principle is based on a PMOS transistor connected to an adjustable voltage reference for adjusting the output voltage.

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