S-1142AC0H-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):	12V
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

S-1142AC0H-E6T2U is a voltage regulator from Sanken Electric Co., Ltd, and it is categorized within the group of Linear PMIC regulators. This device is a monolithic IC voltage regulator capable of providing output currents of up to 200mA at a maximum output voltage of around 5.1V. It is designed to offer higher accuracy, better load regulation and improved power supply rejection rate. It is mainly used in applications such as digital audio players, multi-function peripheral systems, and voice processors.

Features

The features of S-1142AC0H-E6T2U are listed below:• Output Voltage: 5.1V with tolerance of ±0.5%• Output Current: 200mA • High Accuracy: ±0.5%• Line Regulation: 0.03%• Load Regulation: 0.02%• PSRR: 66dB • Overcurrent Protection: Hiccup Type• Operating Temperature Range: -40°C to +85°C

Application Fields

S-1142AC0H-E6T2U can be used in many different applications such as:• Digital audio players • Multi-function peripheral systems • Voice processors • Portable medical equipment • Portable test and measurement instruments • Battery-powered equipment• Automotive electronics

Working Principle

S-1142AC0H-E6T2U works on the principle of voltage regulation. It is based on the technique of adjusting the output of a DC power supply by varying its reference voltage or gain. This device is optimized to operate within the voltage range of 4.5V to 6V. Its reference voltage is fixed at 4.5V, and the device is designed to regulate the output voltage to a desired value. It features a high-precision error amplifier comprising two transistors, two resistors and two capacitors, which compares the reference voltage with a sense voltage and controls the output voltage. When the output is loaded, the sense voltage increases and the output of the error amplifier reduces. In this case, the device regulates the output voltage by providing additional current to the load. Conversely, the device reduces the output current when the load decreases and the output voltage drops below the desired level.The overcurrent protection feature of S-1142AC0H-E6T2U is Hiccup type. This feature enables the device to react quickly to the overcurrent condition and recovers automatically when the fault is cleared.

Conclusion

S-1142AC0H-E6T2U is a linear PMIC voltage regulator from Sanken Electric Co., Ltd. It is generally used in applications such as digital audio players, multi-function peripheral systems, and voice processors. It is capable of providing output currents of up to 200mA at a maximum output voltage of around 5.1V and has a tolerance of ±0.5%. It has high accuracy, better load regulation, improved power supply rejection rate, and overcurrent protection. It operates within the voltage range of 4.5V to 6V and uses the principle of voltage regulation to regulate the output voltage.

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