TPS22958DGNR

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Power Management Integrated Circuit (PMIC), also known as System Power Manager (SPM), integrates several DC-to-DC converters, LDOs and battery chargers in one small package to regulate and control power distribution across devices. As an important part of the power supply system, power distribution switches are also known as power multiplexers or power gating. These switches are used for turning on or off the system power supply at different points. They are commonly used to isolate and prevent additional system power from causing circuit or system issues. The TPS22958DGNR is a single, low resistance, low on-resistance (R_ON) power distribution switch optimized for mobile applications such as notebooks and ultrabooks.

The TPS22958DGNR is a high power distribution switch which is equipped with various features like low on-resistance, slew rate control and load discharge with a single P-channel MOSFET. It is also temperature compensated to reduce I_q. These features ensure low power dissipation in the switch which helps to reduce the overall system power consumption. The single-ended P-channel MOSFET used in this switch helps to provide better current handling capability. The R_ON of this switch is extremely low compared to other PDM switches, which helps to reduce power loss.

The TPS22958DGNR is built in an 2x2x0.6mm³ U-BGA package and is ideal for space-constrained applications including smart phones, tablets and ultrathin notebooks. It requires two supply pins – a V_SUPPLY pin for power and a V_REF pin for the reference voltage. The package is also equipped with two pins for connecting a sense resistor for power monitoring. A single control input is used to turn the switch on and off. This switch can also be used as a load driver that can be programmed with a selectable slew rate and to connect an additional load with a single pin.

The TPS22958DGNR application field and working principle include providing power distribution and load driving to mobile and space-constrained devices. The device combines low on-resistance, temperature compensation, power monitoring and slew rate control capabilities. The P-channel MOSFET used in this switch helps to improve the current-handling capabilities of the switch. The switch is protected against overcurrent, overvoltage and ESD conditions, making it suitable for mobile applications such as smartphones, tablets and ultrathin notebooks.

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