S-1142AC5H-E6T2U

Series:	S-1142A/BxxH
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	50V
Voltage - Output (Min/Fixed):	12.5V
Voltage - Output (Max):	--
Voltage Dropout (Max):	0.4V @ 200mA
Current - Output:	200mA
Current - Quiescent (Iq):	2.5µA
Current - Supply (Max):	9µA
PSRR:	30dB (100Hz)
Control Features:	Enable
Protection Features:	Over Current, Thermal Shutdown
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	6-SOIC Variation (0.154", 3.9mm Width), 4 Leads + 2 Fins
Supplier Device Package:	6-HSOP

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Introduction

The S-1142AC5H-E6T2U is a linear voltage regulator developed by Sanken specifically for use in power management and control systems. It is an output voltage range of 5.75V to 6.25V adjustable single ±2A DC/DC (dual ±1A) step-down converter with high efficiency and low ripple. Compact, low-profile package and space-saving 10-pin DFN are adopted to allow high-density mounting. It allows for both natural-mode and synchronous-mode control as well as heat-sink mounting.

Application Field

The S-1142AC5H-E6T2U is well-suited for power management and control systems, including automotive electronics and digital home appliances. It offers a wide range of features and benefits including high efficiency and low ripple, the ability to work with both natural-mode and synchronous-mode, and a space-saving 10-pin DFN package. Additionally, the S-1142AC5H-E6T2U is specifically designed to handle automotive voltage requirements ranging from 9V to 15V.The S-1142AC5H-E6T2U is ideal for automotive applications such as powertrain systems that require reliable and accurate power regulation. It can also be used in digital home appliances such as multimedia and entertainment systems, offering improved device performance and efficiency.

Working Principle

The S-1142AC5H-E6T2U utilizes a two-stage conversion of input voltage to output voltage. It is a linear voltage regulator, so the output is regulated to an accurate and consistent voltage level despite changes in input voltage and load current.The device begins by accepting an unregulated DC voltage of 9V to 15V from the input and then converting it to a regulated 5.75V to 6.25V output voltage. This stage consists of an internal step-down controller, a switching MOSFET, an internal high-current differential amplifier (ABI), and an internal current-sense resistor (RSS) that is used to monitor the current flow.This conversion is followed by another stage of regulation, in which the output voltage is regulated to a stable voltage level by the linear regulator portion of the device. The linear regulator element compares the output voltage to a reference and adjusts the current to the output to maintain a set and consistent level of performance.The final stage of the S-1142AC5H-E6T2U is the heat-sink mounting stage, which helps to dissipate any heat that is generated by the device and preserved its performance. The heat-sink mounting is used to increase the device\'s temperature limit and to protect vital components from any temperature-related wear or damage.

Conclusion

The S-1142AC5H-E6T2U is a linear voltage regulator specifically designed for use in power management and control systems. It can work with both natural-mode and synchronous-mode and features a wide range of features including high efficiency and low ripple, a space-saving 10-pin DFN package, and heat-sink mounting. It is ideal for automotive applications, including powertrain systems, as well as digital home appliances. It has a two-stage conversion system, with the first stage converting an unregulated DC voltage to a regulated voltage, and the second stage regulating the output voltage to a stable level with a linear regulator element.

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