LM5019ISOEVAL/NOPB

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The LM5019isoEVAL/NOPB evaluation board provides a well-proven platform to evaluate the performance of the LM5019SX synchronous buck regulator IC. This IC is an off-line low current switching regulator with an input supply voltage of up to 150V. It is designed to power DC/DC and AC/DC SMPS applications where board space is limited.

The LM5019isoEVAL/NOPB features an adjustable output voltage over a range of 0.6V to 5.5V and a maximum output current of 1A. The board is also capable of supplying an output power of up to 3W. It is an easy to use platform with inputs and outputs clearly labelled for easy debugging. The onboard current-mode control provides a stable output, good line regulation and fast transient response.

The main components used on the board are the LM5019SX control IC which operates as a synchronous buck regulator, and the CSD19536Q3M N-channel MOSFET. The LM5019SX features an adjustable frequency of 250kHz to 3MHz and can be adjusted using the onboard potentiometers. The LM5019SX IC also features an integrated soft start circuit, open loop protection circuitry and cycle-by-cycle current limit protection.

The LM5019isoEVAL/NOPB provides a wide range of features to optimize the efficiency and performance of the LM5019SX synchronous buck regulator. The board includes an onboard temperature-compensated voltmeter (TCVM) to measure the output voltage, a potentiometer to control the duty cycle, and an open-loop protection (OLP) circuit to protect against overvoltage and overtemperature conditions. In addition, the board includes a thermal monitor (TM) which detects excessive heat staturating the MOSFET. The TM prevents the MOSFET from overheating and damaging the output circuit by shutting off the power when the temperature reaches critical levels.

The LM5019isoEVAL/NOPB is a great platform for evaluating and prototyping the performance of the LM5019SX synchronous buck regulator. The board provides a wide range of features and can be used to evaluate the IC in both DC/DC and AC/DC SMPS applications. With its integrated protection and control features, the board can provide reliable and efficient operation for a variety of applications.

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