S-1137A15-I6T2U Integrated Circuits (ICs)

Current - Output:	300mA
Supplier Device Package:	SNT-6A (H)
Package / Case:	6-SMD, Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable, Soft Start
PSRR:	70dB (1kHz)
Current - Supply (Max):	65µA
Current - Quiescent (Iq):	1µA
Series:	S-1137
Voltage Dropout (Max):	0.47V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.5V
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

The S-1137A15-I6T2U is a programmable buck voltage regulator that implements regulated output voltage and current with turn-on time optimization for system sequencing applications. It has an adjustable output voltage range of 0.8 V to 2.6 V with a maximum current capability of 3A. The S-1137A15-I6T2U has an integrated power switch, sensitivity control, and over/under voltage protection.

Application Fields

The S-1137A15-I6T2U is ideal for applications like powering microprocessors, logic, analog circuits and peripherals in consumer and industrial application.These voltage regulators can be used in consumer and industrial electronics, such as automotive pass through power controllers, set top boxes and display panel power supplies. They are also used to power networks of devices such as cameras, GPS navigation systems, satellite phones and wireless devices.The S-1137A15-I6T2U is also ideal for applications with wide input and output voltage range operations such as portable systems, mobile phones, tablets and DTV power supply. It also has the capability of reversing polarity at the output for powering up devices that have a unipolar supply input, like television sets.

Working Principle

The S-1137A15-I6T2U works by using a power switch that is connected to the sense resistor and can modulate output voltage and current through the gate voltage on the resistor. The total gate voltage is a sum of the voltage set by the voltage reference and the voltage coming into the resistor.The S-1137A15-I6T2U\'s reset control circuit monitors the output voltage and current and when those exceed the limits set by the user, then the power switch will shut off and start protecting the system. The reset control circuit can be set at either positive or negative thresholds depending on the application.The Sensitivity Control of the S-1137A15-I6T2U allows the user to adjust the current limit set point and detect very small changes in the load sense signal. This makes the S-1137A15-I6T2U suitable for system sequencing applications where it is important to have consistent and accurate current regulation.The S-1137A15-I6T2U voltage regulator has built-in Over/Under Voltage protection and Thermal shut off, which helps to protect the downstream devices against any abrupt changes in output voltage and current. It also has a flexible shutdown function which can be used to rapidly shut off the system without having to manually turn off each power switch in a power supply.

Conclusion

The S-1137A15-I6T2U is a low cost, high-performance buck voltage regulator, providing a regulated output voltage and current with turn-on time optimization for system sequencing applications. It can be used to regulate voltage and current in a wide range of consumer and industrial application. It also has additional features such a Sensitivity Control, Over/Under Voltage Protection, and Thermal shut off that make it suitable for a range of applications.

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