LT1576IS8#PBF

Voltage - Output (Min/Fixed):	1.21V
Base Part Number:	LT1576
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz
Current - Output:	1.5A
Voltage - Output (Max):	23.5V
Series:	--
Voltage - Input (Max):	25V
Voltage - Input (Min):	5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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LT1576IS8#PBF DC DC Switching Regulators LT1576IS8#PBF is a regulated integrated circuit from Linear Technology. It is part of the switching regulator family of switching DC/DC regulators designed for high performance applications. This device features high efficiency, fast transient response, and low noise performance for switching power supplies. Description The LT1576IS8#PBF is a series of synchronous Buck PWM DC/DC converters providing 800 mA of continuous output current. It offers higher efficiency and superior transient performance compared to traditional linear regulators. This device offers better power supply quality while reducing power dissipation and component count. It has high frequency operation up to 500 K Hz. It offers low output voltage ripple. The device includes a Precision Enable pin which allows programming various modes of operation such as power savings PWM mode and Sleep mode. FeaturesThe LT1576IS8#PBF switching regulator provides a wide range of features that make it well suited for use in various applications, such as:• 800 mA of output current• High frequency operation up to 500 K Hz• High efficiency• Low output voltage ripple• Sleep mode • External compensation• Internal soft start• Over current protection• Over voltage protection • Thermal shutdownApplicationsThe LT1576IS8#PBF is ideal for a wide array of applications, including:• Computer peripherals• Automotive• High power LEDs• RF modules• Automated test equipment• Point of sale systems• Battery powered equipmentWorking Principle The LT1576IS8#PBF is a synchronous Buck PWM DC/DC converter. This type of regulator provides an output voltage that is regulated and highly efficient, even at light loads. The regulated output provides stable output voltages without excess ripple or noise. The LT1576IS8#PBF operates using pulse width modulation (PWM) technology. The PWM signal is generated by a high speed clock that is used to turn on and off the power devices at a controllable rate. During the “on” state of the PWM cycle, a switching element, typically a MOSFET, is energized and the current flows through the switch and the output inductor. During the “off” state, the switch is de-energized, the switch is opened and the inductor stores energy. The stored energy is then released to the output of the regulator. This creates a low ripple voltage output. The LT1576IS8#PBF also includes protection functions to prevent overvoltage and overcurrent events, as well as thermal shutdown to protect the device from excessive temperatures.ConclusionThe LT1576IS8#PBF switching regulator is a high performance switching regulator designed for a wide range of applications. It offers high efficiency, fast transient response, and low noise performance for switching power supplies. The device features a precision enable pin, allowing for programming various modes of operation such as power savings PWM mode and Sleep mode. The LT1576IS8#PBF is an ideal device for computer peripherals, automotive applications, high power LEDs, RF modules, automated test equipment, and point of sale systems.

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