LT1308ACF#TRPBF

Voltage - Output (Min/Fixed):	1.22V
Base Part Number:	LT1308
Supplier Device Package:	14-TSSOP
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	600kHz
Current - Output:	2A (Switch)
Voltage - Output (Max):	34V
Series:	--
Voltage - Input (Max):	10V
Voltage - Input (Min):	1V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LT1308ACF#TRPBF DC DC Switching Regulators

Introduction

The LT1308ACF#TRPBF is a synchronous buck DC-DC converter designed to provide power conversion with high power density, low ripple, and excellent transient response characteristics. The device uses an external circuitry comprising of a P-channel MOSFET and N-channel MOSFET in an inverter configuration to supply an output voltage regulated to be within ±1%. This regulator is the perfect choice for powering high current loads, like digital processing and system control, with low noise and reliable performance.

Features and Benefits

The LT1308ACF#TRPBF DC-DC converter offers a number of features and benefits that make it an excellent choice for powering high power loads. It provides up to 2A of continuous output current and up to 10A of peak output current. The device also offers four different current limits for allowing for the design of power systems with different current requirements. Additionally, the voltage and current feedback loops are integrated for reduced design complexity. Other features include 72kHz frequency and current errors of only 1.5%.

Application

The LT1308ACF#TRPBF can be used in a variety of different applications. It is best suited for powering microprocessors, memory devices, and other digital circuits. It can also be used to power power amplifiers, LED and LCD displays, and other portable applications. Its low noise, high efficiency and excellent transient response characteristics make it ideal for applications in which performance and reliability are paramount.

Operation and Working Principle

The LT1308ACF#TRPBF is designed to convert an input voltage to a regulated output voltage through the use of external circuitry. The converter features an inverter stage consisting of an N-channel and a P-channel MOSFET. These MOSFETs are connected in an ‘H-bridge’ configuration, with the input voltage being applied across the two MOSFETs. The output voltage is then regulated by a voltage feedback loop and a current limit loop. The voltage feedback loop takes a voltage sample from the output and adjusts the applied voltage to the output to achieve the desired output voltage. The current limit loop monitors the current in the output and adjusts the voltage accordingly to ensure that the output current never exceeds the device’s set current limit.

Conclusion

The LT1308ACF#TRPBF is a DC-DC synchronous buck regulator designed to provide power conversion with high power density, low ripple and excellent transient response characteristics. It is best suited for powering high current loads, like digital processing and system control, with low noise and reliable performance. The device offers multiple current limit settings, voltage and current feedback loops, and high-speed operation, making it an ideal choice for applications in which performance and reliability are paramount.

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