SQ24020BNZG

• Input Voltage Range: 2.5V to 5.5V
• On-Resistance: R_ON = 1.4mΩ (typical) at V_IN=3.3 V 
• 17A Maximum Continuous Switch Current
• Auto Output Discharge: 25Ω
• Accurate Current Monitor: 100μA/A±1.2% at 5A to 17A
• Programmable Insertion Delay Time
• Thermal Shutdown Protection
• Under Voltage Protection
• Over Voltage Protection
• Power Good Indicator
• Compact Package: LGA2.2×2-12
• Moisture Sensitivity Level (MSL): 3

The SQ24020BNZG is a 1.4mΩ, single-channel load switch with a ±1.2% load current monitor that can operate over an input voltage range from 2.5V to 5.5V and can support a maximum continuous current of 17A. The wide input voltage range and high current capability enable the device to be used across multiple designs and high-power-density applications. The 1.4mΩ on-resistance minimizes the voltage drop across the load switch and reduces power loss. The accurate current monitor can help the system to allocate power and diagnose faults to improve the system efficiency and robustness.

The controlled rise time for the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power-supply droop.

The SQ24020BNZG has a 25Ω discharge resistor for quick discharge of the output when the switch is disabled to avoid any unknown state caused by floating supply to the downstream load.

The SQ24020BNZG is available in a small, spacesaving LGA2.2×2 package. The device is characterized for operation over the free-air temperature range of –40°C to 105°C.