LTC3883EUH#PBF

PMIC - Voltage Regulators - DC DC Switching Controllers

The LTC3883EUH#PBF is a highly integrated DC-DC switching controller from Linear Technology. This chip is designed to provide the most efficient power conversion for a wide array of applications. It features an adjustable output voltage and current, a wide input voltage range, low external component count, and fast transient response. Besides, it is housed in a space-saving 3mm x 2mm DFN10 or QFN20 package, ideal for cost-constraint projects. Furthermore, the LTC3883EUH#PBF is designed to operate in multiple topologies such as buck, follow, Cuk and SEPIC.

Application Fields of the LTC3883EUH#PBF

The LTC3883EUH#PBF is well-suited for a wide range of applications. These, but not limited to, include automotive, home appliances, industrial, telecommunications, and consumer electronics. With portable applications, its superior efficiency and fast response time reduce input power losses and prolong battery life.

Working Principle of the LTC3883EUH#PBF

The LTC3883EUH#PBF typically operates in buck, follow, Cuk, or SEPIC topology. It provides several power supply solutions for one single chip. The buck topology operates with an internal control loop to control the voltage and current of the output. It uses pulse-width modulation for regulation and is the most commonly employed topology due to its fast transient response and low external component count. The follow topology works by replicating the input voltage at the output with an external MOSFET. This results in a voltage drop, making lower input voltages feasible. The Cuk topology provides a buck-boost operation. In contrast to the follow topology, the Cuk topology uses an internal control loop to control the output voltage. This succeeds in providing greater voltage regulation capabilities. The SEPIC topology drives the output with a constant current or torque. With this topology, the output can be of higher voltage than the input voltage, or of lower voltage.

Conclusion

The LTC3883EUH#PBF is an efficient and reliable DC-DC switching controller powered by a wide voltage range. It operates in multiple topologies such as buck, follow, Cuk and SEPIC, allowing it to adapt and be more suitable for a wide range of applications. Its fast transient response, low component count, small size and high efficiency make it an ideal solution for portable and cost-constraint projects.