SY28846B Datasheet | Silergy

2.7V-18V Load Switch With Reverse Blocking General Description The SY28846B protection switch is a pact power management device with a full suite of protection functions, including a low-power device sleep (Dev Sleep) mode. The wide operating range allows control of many popular DC BUS voltages. Integrated back-to-back MOSFETs provide bidirectional current control, making the device well-suited for systems with load-side energy reservoirs that must not drain back to a failed supply BUS. The device provides many programmable Features , including overcurrent, d Vo/dt ramp, over-voltage, and under-voltage thresholds using very few external ponents. The device provides PGOOD, /FLT and precise current monitor output for system status monitoring and downstream load control. The precise programmable and low IQ Dev Sleep mode simplifies SSD power management design. The SY28846B provides true reverse current blocking by monitoring VIN < (VOUT - 25m V). This function supports swift change over to a boosted voltage energy storage element in systems with higher backup voltage than the BUS voltage. The SY28846B also integrates latch-off protection. Features - 2.7V to 18V Operating Voltage, 30V (Max) - Ultra-low RDS(ON): 42mΩ RON (Typical) - 0.6A to 5.3A Adjustable Current Limit (±8%) - IMON Current Indicator Output (±8%) - Operating IQ: 115μA (typ.) - Reverse Current Blocking - Programmable d V/dt Control - Power Good and Fault Outputs - 4ms Fault Timer Then Shutoff - -40℃ to 125℃ Junction Temperature Range - pact Package: QFN34-20 Applications - PCIe/SATA/SAS HDD and SSD Drives - Enterprise and Micro Servers - Smart Load Switch - PLCs, SS Relays, and Fan Control - RAID Cards - Holdup Power...