5.5-V, 2-A, 60-mΩ, 10-nA leakage load switch with output discharge

The TPS22916xx is a small, single channel load

switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate

control design supports operating voltages as low as 1 V with minimal increase in

ON-resistance and power loss.

Multiple timing options are available to support

various system loading conditions. For heavy capacitive loads, the slow turn-on

timing in the C version minimizes the inrush current. In cases with light capacitive

loads, the fast timing in the B version reduces required wait time.

The switch ON state is controlled by a digital

input that is capable of interfacing directly with low-voltage control signals. Both

Active High and Active Low (L) versions are available. When power is first applied,

a smart pulldown is used to keep the ON pin from floating until system sequencing is

complete. AFter the ON pin is deliberately driven high (≥VIH), the smart

pulldown is disconnected to prevent unnecessary power loss.

The TPS22916xx is available in a small, space saving 0.78 mm × 0.78 mm, 0.4-mm pitch, 0.5-mm height 4-pin Wafer-Chip-Scale (WCSP) package (YFP). The device is characterized for operation over a temperature range of –40°C to +85°C.