S-1721E2J25-I6T1U

Current - Output:	150mA
Supplier Device Package:	SNT-6A
Package / Case:	6-SMD, Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	75dB (1kHz), 75dB (1kHz)
Current - Supply (Max):	45µA
Current - Quiescent (Iq):	1µA
Series:	S-1721
Voltage Dropout (Max):	0.24V @ 100mA, 0.23V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.5V, 2.85V
Voltage - Input (Max):	6.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The S-1721E2J25-I6T1U is a precise high performance Integrated Linear Voltage Regulator. It is a widely applicable device that ensures precise voltage protection in a wide range of applications. It was designed with a variety of features such as low-voltage protection and current limiting that make it preferable over competing Linear Voltage Regulators. With a wide temperature range, this device guarantees long-term stability and reliable operation in a variety of challenging conditions.

Application Field

The S-1721E2J25-I6T1U Linear Voltage Regulator is typically used in battery-powered applications as well as embedded systems and automobiles. This device is an excellent choice for microprocessor circuits, digital signal processors, and automotive systems due to its precise voltage protection and current limiting feature. This voltage regulator can also be applied in various low-voltage applications as it has a low-voltage protection feature, which makes it suitable for applications such as LCD backlighting. This device is also suitable for applications that require stable and safe voltage and current delivery such as medical systems, consumer electronics, and industrial products.

Working Principle

The S-1721E2J25-I6T1U Linear Voltage Regulator uses a three-terminal AO9520LMJ-1 circuit with integrated MOSFETs to provide a precise, low-impedance output. The output voltage can be adjusted by changing the external resistor divider (R1, R2) connected to the reference pin. The device also has current-limiting, overtemperature and undervoltage protection built into its circuitry. When the high-side MOSFET turns on, the output voltage is regulated such that the voltage between the output and the negative terminals meets the current limit set by the external resistor divider. The Vreg_limit pin sets the maximum output voltage, and the Vref pin sets the voltage reference.In order to ensure a high output voltage stability, the device can be connected to a remote transistor stage which acts as a load switch and provides current protection when power is being supplied. When the Vref voltage rises, the load switch is disabled, preventing excessive current from entering the system.

Conclusion

The S-1721E2J25-I6T1U Linear Voltage Regulator is a highly precise and reliable integrated linear voltage regulator that is suitable for a wide array of applications. With features such as low-voltage protection, current-limiting and over-temperature protection, this device guarantees long-term stability and reliable operation in challenging conditions. It is an excellent choice for automotive systems, embedded systems, and battery-powered applications, as well as medical systems, consumer electronics and industrial products.

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