LM5020MM-1/NOPB

Frequency - Switching:	200kHz ~ 630kHz
Base Part Number:	LM5020
Supplier Device Package:	10-VSSOP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Frequency Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	No
Duty Cycle (Max):	80%
Series:	--
Voltage - Supply (Vcc/Vdd):	8 V ~ 15 V
Output Phases:	1
Number of Outputs:	1
Topology:	Flyback
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LM5020MM-1/NOPB is a 3-A synchronous buck controller, featuring a wide input voltage range of 6 to 24 V, and high efficiency operation with minimal external components. This makes it a great choice for applications that require a wide input voltage range, such as industrial and automotive applications. In addition, the low quiescent current provides excellent low power operation, perfect for battery-powered systems.

Application Field

The LM5020MM-1/NOPB is ideal for many applications, including high current systems, charging systems, automotive power supplies, and industrial power supplies. The wide input voltage range can provide excellent efficiency when used in high current applications, as well as battery-powered systems. Additionally, thanks to advanced features such as programmable current limit, it is a great choice for complicated systems, such as system with multiple battery cells or multiple load outputs.

Working Principle

The LM5020MM-1/NOPB works by controlling a power switch, such as an N-channel MOSFET, so it switches at the correct frequency that is determined by an external clock. The controller drives the power switch with a PWM signal that varies the duty cycle to regulate the output voltage.When the current sensing input (CS) is greater than the internal sense trip voltage, the controller reduces the power switch duty cycle to limit the current. This allows the LM5020MM-1/NOPB to provide a safe operation in overload conditions.

Features

The LM5020MM-1/NOPB provides additional features that make it an ideal choice for many applications. It includes an internal oscillator, so an external clock is not needed. It also features support for independent voltage selection and enable, allowing for easy sequencing and control.It also features dynamic current limit programming, which can provide a wide range of current limit settings for each output. Furthermore, it features reverse current protection, over-temperature protection, and a cycle-by-cycle current limit.

Conclusion

The LM5020MM-1/NOPB is an ideal choice for high-power, high-efficiency, and low-power applications. With its wide input voltage range and advanced features, it is a great choice for applications requiring a high current, high efficiency, and low power solution. Additionally, its advanced features provide a safe and reliable operation even in overload and over-temperature conditions. Overall, this makes the LM5020MM-1/NOPB an excellent choice for many different applications.

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