LTC1733EMSE#PBF

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The LTC1733EMSE#PBF has a range of applications and is commonly found in battery charging product designs. This component is a single-input DC-DC step-down switching regulator designed to provide up to 1.5A of continuous output current from an input voltage of up to 4.6V. The device includes a built-in fixed frequency, current mode, switching power stage, as well as the necessary feedback, control and protection circuitry for a complete system solution. The device can be programmed for output voltages from 0.6V to 4V, making it suitable for a wide variety of applications and battery charging solutions.

The LTC1733EMSE#PBF also offers excellent efficiency and thermal performance. The device achieves a maximum efficiency of 93%, while also remaining cool during operation and maximising run time. Additionally, the device is designed with low-ESR ceramic capacitors, increasing system reliability and providing better performance at high input and output voltages.

The working principle of the LTC1733EMSE#PBF is fairly straightforward. The device contains a fixed frequency, current mode, DC-DC step-down switching power stage. When the input voltage is applied, the current mode converter starts inductor current conduction, resulting in the output voltage ramping up. As the output voltage reaches its programmed value, the converter operates in continuous conduction mode and current mode control is used to regulate the output voltage. The feedback loop ensures that the output voltage remains stable and its accuracy is maintained.

The LTC1733EMSE#PBF also includes a range of protection features to help prevent damage to the system. These include input over-voltage protection, output over-voltage protection, output over-current protection, and thermal-shutdown protection. This helps to ensure that the system operates reliably and safely. Additionally, the device features a built-in soft start, helping to reduce the inrush current during start-up.

In summary, the LTC1733EMSE#PBF is a well-designed, high-performance battery charger. The device is well suited for a range of battery charging applications, and its low-ESR ceramic capacitors increase system reliability. Additionally, its fixed frequency, current mode, switching power stage, as well as its feedback, control and protection circuitry make it a highly reliable solution for a range of applications. It is well suited for battery charging in applications such as portable electronics, notebook computers, cell phones, and other mobile devices.

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