S-1112B27PI-L6MTFG

Current - Output:	150mA
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
PSRR:	80dB (1kHz)
Current - Supply (Max):	90µA
Current - Quiescent (Iq):	1µA
Series:	S-1112
Voltage Dropout (Max):	0.29V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.7V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The S-1112B27PI-L6MTFG is a low-dropout (LDO) linear voltage regulator from Rohm Semiconductor. This device is a 5V, 2A voltage and current source. The LDO regulator is designed for various applications, such as embedded and portable designs that require both accurate and low-noise power supply. It offers excellent power supply rejection and low EMI. It also has low voltage dropout and high ripple rejection ratio. The S-1112B27PI-L6MTFG is a step-down type linear voltage regulator and it is widely used in various electronic devices, such as industrial equipment, laptop computers, cellular phones, and so on.

Features and Benefits

The key features and benefits of the S-1112B27PI-L6MTFG are:

• Wide input voltage range: The S-1112B27PI-L6MTFG can operate with input voltage ranging from 4.75V to 15V.
• High accuracy output voltage: It offers a high accuracy output voltage, which is guaranteed to remain within +/- 2% of the rated output voltage.
• Excellent ambient temperature range: This LDO regulator has an impressive temperature range from -40°C to 85°C.
• Low dropout voltage: It offers a very low dropout voltage of only 0.2V at full load.
• High ripple rejection: The S-1112B27PI-L6MTFG boasts a high ripple rejection of 60dB at 10KHz.
• Low EMI: This LDO regulator delivers low electromagnetic interference, making it perfect for noise sensitive applications.
• Short circuit protection: It features short circuit protection which enables it to be used in applications that may require protection from output over voltage.

Applications

The S-1112B27PI-L6MTFG is a low-dropout linear voltage regulator and it offers high performance and low EMI, making it suitable for many applications. Some key applications of this device include:

• Industrial equipment
• Laptop computers
• Cellular phones
• Embedded systems
• Portable devices
• Data loggers
• Battery-operated devices

Working Principle

The S-1112B27PI-L6MTFG is a linear voltage regulator designed to convert an input voltage of up to 15V into a regulated output voltage of 5V and 2A. This device is a step-down type linear regulator and has a typical dropout voltage of 0.2V at full load. The device operates by comparing the voltage feedback input to a reference voltage and then controlling the output voltage via a linear Pass element such as a P-channel or N-channel MOSFET or other low on-resistance Pass element. In order to maintain the voltage regulation, a proportional amplitude control is provided to adjust the size of the output current, and an integrated error amplifier is used to control the output voltage. The voltage feedback input allows the user to adjust the output voltage by varying the feedback voltage.The S-1112B27PI-L6MTFG has a built-in high performance switching regulator. This feature enables the S-1112B27PI-L6MTFG to offer a high efficiency, low ripple and low noise operation. Furthermore, its low dropout voltage and high ripple rejection also provide robustness against noise and supply fluctuations.

Conclusion

The S-1112B27PI-L6MTFG is a reliable and low-noise low-dropout linear voltage regulator from Rohm Semiconductor. This device is suitable for many applications, such as industrial equipment, laptop computers, cellular phones, embedded systems, portable devices, data loggers and battery-operated devices. It offers a wide input voltage range of 4.75V to 15V, a high accuracy output voltage of +/- 2%, an impressive operating temperature of -40°C to 85°C, a very low dropout voltage of 0.2V at full load, a high ripple rejection of 60dB at 10KHz and a low EMI. It also comes with built-in short circuit protection.

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