TPS27081ADDCR

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1. Describe

The TPS27081ADDCR device is a high-side load switch Integrate power PFET and control NFET in A small package. TPS27081A has industry standard ESD Protect all pins and provide better ESD Compatibility with other onboard components. TPS27081A level converts ON/OFF logic signal to VIN level and supports CPU or MCU as low as 1V No need to control high-voltage power supply logic An external level converter is required. Switched by a large value output capacitor CL Fast ON/OFF logic signals may cause excessive Inrush current. In order to control the load surge current, Connect a resistor R2 and add an external capacitor C1. arrive Configure TPS27081A for specific conversion Rate. A single pull-up resistor R1 is required in standby Power switch application. In this type of application Connect the R2 pin of TPS27081A to the system Grounding when surge current control is not required.

2. Feature

    1. Low on-resistance, high current PFET

        – RDS(on) = 32 mΩ, VGS = –4.5 V

        – RDS(on) = 44 mΩ, VGS = –3 V

        – RDS(on) = 82 mΩ, VGS = –1.8 V

        – RDS(on) = 93 mΩ, VGS = –1.5 V

        – RDS(on) = 155 mΩ, VGS = –1.2 V

    2. Adjustable turn-on and turn-off conversion rate control Via external R1, R2 and C1

    3. Support a wide range of 1.2V to 8V power input

    4. Integrated NMOS for PFET control

    5. NMOS on/off supports a wide range of 1V to 8V control logic interface

    6. Comprehensive ESD protection (all pins)

        – HBM 2 kV, CDM 500 V

    7. Ultra-low leakage current during standby (typical value is 100 nA)

    8. Available in a miniature 6-pin package

        – 2.9 mm × 2.8 mm × 0.75 mm SOT (DDC) g

3. Application

    1. High-end load switch

    2. Inrush current control

    3. Power sequencing and control

    4. Standby power isolation

    5. Portable power switch

4. Pin Configuration

5. Pin Functions

6. Function description

The TPS27081ADDCR device uses low-voltage power PMOS transistors as transmission elements or in Power supply and load. The device also uses NMOS transistors to pass and Wide range of GPIO voltage. When the input voltage is higher than VIH (1 V), the PMOS switch is enabled by the following method Connect NMOS and NMOS drive PMOS gate to ground. When R2 is used to control the output rise Time and a pull-up resistor R1 connect the gate of the PMOS to the source to ensure shutdown, please be sure to use R1 The value is large enough to provide a small enough current to R2 so as not to seriously affect the PMOS on-state gate Voltage. TPS27081A provides additional ports to control the output rise time by connecting passive components between these ports Pins, VIN and VOUT.