Suitable for applications requiring high frequency operation and fast transient response

Analog Devices announced the LTC7150S, a 20V, 20A monolithic synchronous buck converter with differential VOUT remote sensing.

The device's unique phase-lockable (PLL) controlled on-time constant frequency current mode architecture facilitates compensation and is ideal for high step-down ratio applications that require fast transient response while operating at high frequencies.

The LTC7150S utilizes Silent Switcher 2 technology with integrated bypass capacitors to provide a high-efficiency solution with excellent EMI performance and relaxed layout constraints. Multiphase operation, with up to 12 phases, allows direct paralleling of multiple devices for high power output while minimizing increased input and output capacitance.

The LTC7150S's wide 3.1V to 20V input range allows it to be used in a wide range of applications, including most intermediate bus voltages and many battery types. The integrated N-channel MOSFET provides high continuous load current of 20A with minimal thermal degradation at output voltages ranging from 0.6V to VIN, making it ideal for point-of-load (PoL) applications such as high-current/low-voltage DSPs.

The LTC7150S's ultra-low minimum on-time of 25ns enables a high step-down ratio power supply, even at high frequencies, supporting both forced continuous and discontinuous operation. The operating frequency is selectable from 400kHz to 3MHz and can be synchronized to an external clock.