LM43603PWP

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The LM43603PWP is a DC DC switching Regulator in a Power Module package from the Texas Instruments range of Voltage Regulators. The LM43603PWP comes with proven switch mode design technology and several features to enable superior system operation for its applications in medium to high power designs. It has low Ripple/Noise (R/N) at load transients, which makes it well suited for applications such as industrial, computer, telecoms and audio amplifiers. It also provides high efficiency, very low noise and a wide input-voltage range, making it ideal for 12V, 24V and 48V applications.

In addition to its DC DC characteristics, the LM43603PWP also has integrated protection features, including an arc fault protection circuit and a robust Open Load/Over Current protection circuit. It also boasts a wide operating temperature range of -40°C to +125°C and a high-temperature- and overvoltage shutdown circuit. These protection circuits ensure that the LM43603PWP is able to provide reliable operation under harsh conditions.

The LM43603PWP is based on a buck converter control architecture, with current mode control and voltage mode control (VMC) options, as well as an adjustable pre-bias start. This makes it suitable for a wide variety of applications, such as computer, telecoms and audio power amplifiers, as well as motor control applications. It also has a Well Regulated Ripple (WRR) wide-bandwidth error amplifier.

The LM43603PWP is designed with a special low-side MOSFET and CMF9560 current regulating devices. This allows it to provide extremely low output voltage noise and ripple due to the CMRR of the devices which is optimized for low noise performance. In addition to its excellent noise performance, the LM43603PWP also works at low output current levels, so it is well suited to applications that require low power consumption such as audio systems.

The LM43603PWP is also equipped with multiple fault protection circuits to enhance its robustness. This includes an over-temperature shutdown circuit which will shut down when the temperature exceeds specified limits, and a reverse-output over current protection circuit which can protect the device from any reverse current flow. It also includes a dual-mode power saving circuit which can reduce the power consumption of the device to as little as 0.2mA, making it suitable for battery-powered applications.

The LM43603PWP is designed with high-voltage advanced MOSFETs, integrating a ColdFET low-side drive and featuring a 10mΩ low-side MOSFET for enhanced efficiency. This features a very low but adjustable resistance and is designed for high-reliability and low-power operations. The LM43603PWP also benefits from the low VCE(Sat) and low ESR of the capacitors used in its design.

In summary, the LM43603PWP is an ideal choice for a DC DC Regulator within the Texas Instruments range of Voltage Regulators. It is suitable for applications in medium to high power designs, and provides low output voltage noise and ripple with an extremely low power consumption. Its advanced MOSFET device and CMF9560 current regulating device ensure superior protection, while its safety circuit, integrated protection features and adjustable pre-bias start make it one of the most reliable and efficient DC DC Regulators available.

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