TPS22914/TPS22915 Load Switches

Product Highlights > TPS22914/TPS22915 Load Switches

            TPS22914/TPS22915 Load Switches
                    TI's 5.5 V, 2 A, 38 mΩ on-resistance load switches with quick output discharge
    

Image of Texas Instruments TPS22914/TPS22915 Load Switch Texas Instruments' TPS22914/15 switches are small, low R_ON, single-channel load switches with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.05 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on/off input, which is capable of interfacing directly with low-voltage control signals.

The small-size and low-R_ON makes the device ideal for being used in space constrained, battery powered applications. The wide input voltage range of the switch makes it a versatile solution for many different voltage rails. The controlled rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22915 further reduces the total solution size by integrating a 143 Ω pull-down resistor for Quick Output Discharge (QOD) when the switch is turned off.

Features

Integrated single-channel load switch
Input voltage range: 1.05 V to 5.5 V
Low On-Resistance (R_ON):

R_ON = 37 mΩ (typ) at V_IN = 5 V
R_ON = 38 mΩ (typ) at V_IN = 3.3 V
R_ON = 43 mΩ (typ) at V_IN = 1.8 V

Quick output discharge (TPS22915 only)

2 A maximum continuous switch current
Low-quiescent current: 7.7 µA (typ) at V_IN = 3.3 V
Low-control input threshold enables use of 1.0 V or higher GPIO
Controlled slew rate:

t_R = 64 µs at V_IN = 3.3 V (TPS22914B/15B)
t_R = 913 µs at V_IN = 3.3 V (TPS22914C/15C)