TI LM73100RPWR

The LM73100 is a highly integrated circuit protection and power management solution in a small package. This device can provide multiple protection modes with few external components and is very effective in protecting against voltage surges, reverse polarity, reverse current, and excessive surge current. With features such as an integrated back-to-back FET and always blocking reverse current from the output to the input, this device is well-suited for power multiplexer/ORing applications. This device uses a linear ORing-based scheme to ensure almost zero DC reverse current and mimics the behavior of an ideal diode with ultra-low forward voltage drop and power dissipation. Applications with specific requirements for surge current can set the output slew rate through a single external capacitor. By cutting off the output when the input exceeds an adjustable overvoltage threshold, the load can be protected from input overvoltage conditions. This device can also provide a fast trip response to transient overcurrent events during steady-state operation. This device can accurately detect the output load current on the analog current monitoring pin. This device is available in a 2mm x 2mm 10-pin HotRod QFN package, which is designed to improve thermal performance and reduce system size. The device is rated for an operating junction temperature range of –40°C to +125°C.

• Wide operating input voltage range: 2.7V to 23V, absolute maximum 28V, withstands negative voltages up to -15V
• Integrated back-to-back FETs with low on-resistance: RON = 28.4mΩ (typical)
• Ideal diode operation with true reverse current blocking
• Fast overvoltage protection with 1.2μs response time (typical)
• Adjustable overvoltage lockout (OVLO)
• Fast blanking response to transient overcurrent during steady state with 500ns response time (typical)
• Latch-off after fault
• Analog load current monitor output (IMON), current range: 0.5A to 5.5A, accuracy: ±15% (maximum) (IOUT ≥ 1A)
• Active-high enable input with adjustable undervoltage lockout threshold (UVLO)
• Adjustable output slew rate control (dVdt)
• Overtemperature protection
• Power good indicator (PG) with adjustable threshold (PGTH)
• Small footprint: QFN 2mm x 2mm, 0.45mm pitch

• Power Mux/ORing
• Adapter Input Protection
• Set-Top Box/Smart Speaker
• USB PD Port Protection
• PC/Laptop/Monitor/Docking Station
• Power Tools/Chargers
• POS Terminal