S-1112B44PI-L7DTFU

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):	0.26V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.4V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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S-1112B44PI-L7DTFU Application Field and Working Principle

The S-1112B44PI-L7DTFU, manufactured by Texas Instruments, is an advanced linear regulator and buck switching regulator in one device. It is part of the extensive portfolio of Power Management Integrated Circuits (PMICs) that are used to control and protect a variety of applications. The S-1112B44PI-L7DTFU is a versatile integrated circuit, which is suitable for many different contexts. This article will explore the areas in which it can be used, as well as its working principle.

Application Field

The S-1112B44PI-L7DTFU is suitable for a variety of consumer electronic products, such as cell phones, digital cameras, laptop computers, and medical equipment. Moreover, it is also suitable for use in automotive electronics, industrial devices, and other portable electronic products. The S-1112B44PI-L7DTFU offers a wide range of features, including adjustable voltage output, low output noise, strong line and load transient performance, high efficiency, and robust short-circuit protection. This makes it suitable for a wide range of application scenarios.

Working Principle

The S-1112B44PI-L7DTFU is based on a traditional buck topology. It employs a high-side P-channel MOSFET switch, a low-side Synchronous Rectifier, an inductor, and an output capacitor for regulating the output voltage.The S-1112B44PI-L7DTFU can operate in either linear or switching mode, depending on the application needs. When in linear mode, the S-1112B44PI-L7DTFU works like any other linear regulator — it draws current from the input, uses a voltage reference loop to compare the input voltage and output voltage, and then adjusts the gate voltage to maintain a constant output.When in switching mode, the S-1112B44PI-L7DTFU acts like a buck converter. The MOSFET switch is turned on and off at a high rate to regulate the output voltage. This technique allows for a more efficient conversion and higher power density.

The S-1112B44PI-L7DTFU is a versatile device that is suitable for a variety of applications. Its wide range of capabilities and low output noise make it an attractive choice for most consumer and automotive electronics. Furthermore, its switching mode operation allows for higher efficiency and power density.

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