The LT8672 drives an external N-channel MOSFET with a 20mV dropout to reduce power consumption by up to 90% compared to Schottky diodes, eliminating the need for expensive heat sinks. Automotive applications require AC input ripple rectification up to 100kHz, The device's ultra-fast transient response enables it to meet demanding automotive applications. In addition, 20μA quiescent current during operation and 3.5μA current at shutdown are ideal for always-on systems. The MSOP-10 package, combined with an external MOSFET, Ensures a compact solution footprint.
The LT8672's solution offers 3V minimum input capability and 20mV dropout to provide simpler and more efficient circuitry with minimal input voltage requirements during cold crank and stop-and-go conditions.If the input power fails or Shorted, the device can be quickly turned off to minimize reverse current transients, and the power good flag pin signals when the external MOSFET is ready to accept the load current.
The LT8672EMS is available in an MSOP-10 package. The LT8672IMS industrial temperature grade version is tested and guaranteed to operate over the operating junction temperature range of -40 ° C to 125 ° C. The LT8672HMS has been tested and guaranteed to operate at -40 ° C to 150 ° C Junction Temperature Operation. Summary of Features: LT8672
• Reverse input protection to -40V • Wide operating voltage range from 3V to 42V • Low 20μA quiescent current during operation • Improved performance compared to Schottky diodes: o 90% reduction in power dissipation o Drop in voltage drop to 20mV • Ultrafast Transient Response o Rectified 6VP-P up to 50kHz o Rectified 2VP-P up to 100kHz • 3.5μA Low Shutdown Current • Accurate 1.21V Enable Pin Thresholds • Small 10-Lead MSOP Package
