UCC39411D

Voltage - Output (Min/Fixed):	1.25V
Base Part Number:	UCC39411
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	--
Current - Output:	60mA
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	3.2V
Voltage - Input (Min):	1.1V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tube

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The UCC39411D is a monolithic synchronous step-down power-conversion integrated circuit used in a wide range of DC-DC switching regulato applications. The device is capable of delivering up to 2.2A of output current and has a wide input voltage range that can be used with 2.7V to 17V powersupplies. It is also capable of operating at efficiency levels up to 97%.The device is based on an on-chip high performance synchronous PWM controller, with integrated high and low-side MOSFET level shift circuitry. The device comes standard with internal current limit, soft-start, and PGOOD. External resistor based compensation is used forcompensating the regulator loop.The UCC39411D Integrated circuit has been designed to provide high efficiency, low output voltage ripple and high power density in a wide range of voltage regulation applications. It can be used as a primary switching regulator to supply non-isolated DC-DC converters, such aslow-dropout linear regulators or buck converters.The UCC39411D\'s working principle is to switch an external MOSFET between ground and a regulated output voltage. The internal controller monitors the load current, output voltage, feedback voltage, and compensates the internal MOSFET power supply voltage and levels.The UCC39411D has numerous features that make it a desirable choice for efficient and reliable power regulation. It features an integrated high performance synchronous PWM controller, with high and low-side MOSFET level-shift circuitry. The device offers external programming of output voltage through an externally accessible voltage divider, providing users the flexibility to adjust the output voltage to suit their requirements.The UCC39411D also features adjustable current limit, soft-start, and an on-board pulldown circuit, enabling the user to safely shut down the output voltage in the event of open-loop or over-temperature conditions. Additionally, the device offers a fast transient response and low output voltage ripple, reducing the need for external components such as electrolytic capacitors.The UCC39411D is an ideal choice for DC-DC conversion applications such as the powering of active-matrix LCDs, digital cameras, personal computers, portable electronics and many other applications requiring a high level of power. It can also be used as a primary switching regulator to supply non-isolated DC-DC converters, such as low-dropout linear regulators or buck converters.As can be seen, the UCC39411D integrated circuit is an excellent choice for a wide range of voltage regulation applications. It offers an efficient, reliable and flexible solution for high power density applications, providing designers the confidence that their product will meet their performance and reliability requirements.

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