LTM4634IY#PBF

DC DC Converters

The LTM4634IY#PBF is a high efficiency, high power, DC to DC buck converter module designed for applications that require wide input voltage ranges. The power output of the LTM4634IY#PBF is very capable, and its adjustable switching frequency allows for a wide range of applications. Its features include input voltage range of 5.5V to 24V, V IN of 4.5V to 18V, adjustable switching frequency, adjustable output voltage, and low input current ripple values.

Application Field

The LTM4634IY#PBF is ideal for automotive, industrial, power management, medical, and electrical and instrumentation applications. Specifically, its high power combined with its wide input voltage range makes it suitable for applications such as high-intensity transducers, boost converters, and for other high-voltage or high-power requirements. The LTM4634IY#PBF also offers a build reduction of up to 15% over other similar power modules, which makes it ideal for space-constrained applications.

Working Principle

The LTM4634IY#PBF uses a switching boost regulator to generate output voltage. The input voltage is directly applied to the internal switching regulator’s boost network via a P-channel MOSFET and a Schottky diode. A peak current mode control with a synchronous rectification scheme controls the P-channel MOSFET, the output phase signal of which is compared against the feedback voltage to generate the proper switching frequency. This wide input range and precise current-mode control of the LTM4634IY#PBF make it highly efficient and reliable in many applications.

The LTM4634IY#PBF can also be used in applications requiring a regulated output voltage with a low quiescent current. By adjusting the operating frequency, the current ripple at the output can be minimized and the output voltage can be finely regulated. This high level of control makes the LTM4634IY#PBF ideal for applications such as distributed power supplies, engine controls or power amplifiers.

The LTM4634IY#PBF is capable of delivering high currents while maintaining low input voltage ripple. Its wide input voltage range, precise current-mode control, and adjustable switching frequency make it suitable for many different applications that require high power and efficiency.