NCP1521BEVB

The NCP1521BEVB is an evaluation board that allows quick evaluation of NCP1521B step down PWM DC to DC converter. The NCP1521B is optimized for portable applications powered from one cell Li ion or three cell Alkaline/NiCd/NiMH batteries. The part is available in adjustable output voltage versions ranging from 0.9V to 3.3V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built in 1.5MHz (nominal) oscillator which reduces component size by allowing smaller inductors and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency.

• 96% efficiency, 30uA quiescent current, 0.3uA shutdown current
• 1.5MHz switching frequency
• Auto switching between PWM and PFM mode at light load conditions
• Best in class low ripple even in PFM mode
• Low power consumption at light loading
• Extends battery life and play time
• Integrated soft start
• Cycle by cycle current limiting
• Thermal shutdown protection

Applications

Power Management, Portable Devices, Consumer Electronics, Communications & Networking, Wireless