NCV890100PDR2G.

The NCV890100PDR2G is a fixed-frequency monolithic buck Switching Regulator intended for battery-connected applications that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890100 is capable of converting the typical 4.5 to 18V automotive input voltage range to outputs as low as 3.3V at a constant switching frequency above the sensitive AM band, eliminating the need for filters and EMI countermeasures. The NCV890100 also provides several protection features expected in automotive power supply systems such as current limit, short-circuit protection and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.

• Internal N-channel power switch
• Withstands load dump to 40V
• Logic level enable input can be directly tied to battery
• Short-circuit protection enhanced by frequency foldback
• Output voltage adjustable down to 0.8V
• Thermal shutdown (TSD)
• Low shutdown current
• Enables the use of small size, inductor and EMC filter
• Wettable flanks DFN
• 1.4A (minimum) Cycle-by-cycle peak current limit
• ±1.75% Output voltage tolerance
• 1.4ms Internal soft-start

Applications

Audio, Safety, Sensing & Instrumentation, Automotive, Power Management