TI推出高侧负荷开关TPS27082L

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The TPS27082L IC is a high side load switch that integrates a Power PFET and a control circuit in a tiny TSOT-23 package. TPS27082L requires very low ON-state quiescent current and offers very low OFF-state leakage thus optimizing system power efficiency.

TPS27082L ON/OFF logic interface features hysteresis, thus providing a robust logic interface even under very noisy operating conditions. TPS27082L ON/OFF interface supports direct interfacing to low voltage GPIOs down to 1V. The TPS27082L level shifts ON/OFF logic signal to VIN levels without requiring an external level shifter.

TPS27082L features a novel OFF isolation circuit that prevents PMOS from turning ON in applications that may have fast transients, at the VIN pin when the load switch is in the OFF-state.

Features

Low ON Resistance, High Current PFET RDS = 32mΩ (Typical) at VGS = –4.5V RDS = 44mΩ (Typical) at VGS = –3.0V RDS = 85mΩ (Typical) at VGS = –1.8V RDS = 97mΩ (Typical) at VGS = –1.5V RDS = 155mΩ (Typical) at VGS = –1.2V Adjustable Turn-ON and Turn-OFF Slew Rate 10µsec Default Minimum Output Rise Time at VIN=5V Adjustable Turn-ON and Turn-OFF Slew Rate Supports a Wide Range of VIN 1.2V up to 8V Excellent OFF Isolation Even Under Fast Input Transients 1.0V up to 8V NMOS Control Logic Interface With Adjustable Hystersis Fully Protected Against ESD (All Pins) HBM 2kV, CDM 500V Very Low ON-state Quiescent Current (Down to 1.2µA) Very Low OFF-state Leakage Current (Typ 100nA) Available in 2.9mm × 1.6mm × 0.75mm SOT-23 (DDC) Package