LV5761V-TLM-E

Frequency - Switching:	125kHz
Base Part Number:	LV5761
Supplier Device Package:	16-SSOP
Package / Case:	16-LSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Current Limit, Enable, Frequency Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	Yes
Duty Cycle (Max):	85%
Series:	--
Voltage - Supply (Vcc/Vdd):	8.5 V ~ 42 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LV5761V-TLM-E Application Field and Working Principle

The LV5761V-TLM-E is one of the most successful and cost-effective DC-DC switching controllers offered in the market. This product is perfect for a wide range of consumer and industrial applications, such as LCD displays, home and vehicle audio systems, radio receivers, car audio systems and more. In addition, the LV5761V-TLM-E boasts a small surface-mount package, making it easy to integrate into any system.

Features of LV5761V-TLM-E

Some of the features of the LV5761V-TLM-E include an adjustable output voltage, a programmable switching frequency, adjustable hysteresis, and a programmable soft start. The LV5761V-TLM-E also offers a variety of protection features, such as over-temperature protection, over-current protection, and under-voltage lockout. Additionally, it has an adjustable dead time for optimized energy efficiency. A key feature of LV5761V-TLM-E is its adjustable output voltage. This ensures that the system stays within the acceptable range during operation and prevents any potential damage due to high voltage spikes. Additionally, the programmable switching frequency and adjustable hysteresis allow the system to operate at the most efficient point. By limiting the time it takes for the switching to occur and by preventing unnecessary cycling of the system, the LV5761V-TLM-E increases overall power efficiency and helps reduce wastage.

Working Principle of LV5761V-TLM-E

The LV5761V-TLM-E adopts a buck converter topology to convert a single input voltage to a regulated output voltage. The device takes a DC input voltage, typically from a battery, and then uses a series of switches and inductors to adjust the voltage level. The voltage output is adjusted according to the settings of the system and its feedback. The LV5761V-TLM-E uses a specific ramping law to accurately control the switching frequency. This ensures that the output voltage remains constant, even in the presence of changing loads or sudden transients. Additionally, the soft-start feature helps to ensure that the system starts up smoothly and prevents any potential inrush current problems. The LV5761V-TLM-E also offers adjustable dead time. This feature allows the user to make sure that the switches are opened and closed at a predetermined time to avoid the formation of shoot-through currents, thus increasing the system’s efficiency and reliability.

Benefits of LV5761V-TLM-E

The LV5761V-TLM-E is designed to maximize system benefits by offering a wide range of features that reduce cost, improve energy efficiency, and increase system ruggedness. It helps reduce parts count and cost of system design by offering an all-in-one solution for the DC-DC conversion.The LV5761V-TLM-E also features a small package that helps reduce board size and easily integrates into existing systems. Additionally, its adjustable switching frequency and adjustable hysteresis help achieve power efficiency of up to 95%. The adjustable dead time further increases the system\'s efficiency and reliability.

Conclusion

The LV5761V-TLM-E is an efficient and cost-effective DC-DC switching controller designed for a wide range of consumer and industrial applications. It offers a wide range of features that reduce cost, improve energy efficiency, and increase system ruggedness. Its adjustable output voltage, adjustable switching frequency, programmable soft start, and adjustable dead time make it perfect for a variety of applications.

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