Description
The PM6675 device consists of a single high efficiency step-down controller and an independent Low Drop-Out (LDO) linear regulator. The Constant On-Time (COT) architecture assures fast transient response supporting both electrolytic and ceramic output capacitors. An embedded integrator control loop compensates the DC voltage error due to the output ripple. A selectable low-consumption mode allows the highest efficiency over a wide range of load conditions. The low-noise mode sets the minimum switching frequency to 33kHz for audio-sensitive applications. The LDO linear regulator can sink and source up to 2Apk. Two fixed current limits (±1A-±2A) can be chosen. An active Soft-End is independently performed on both the switching and the linear regulators outputs when disabled. VFQFPN-24 4x4

Applications
■ Notebook computers
■ Graphic cards
■ Embedded computers