TPS22915CYFPR

• Single-Channel High-Side Load switch, 2 Ampere Maximum Output Current
• On-State Resistance of 37 Milliohms
• Supply Voltage Range of 1.05 Volts to 5.5 Volts
• Quiescent Supply Current of 7.7µA
• Turn-on Delay of 1.3 milliseconds, Turn-Off Delay of 2 Microseconds
• 4-Pin Surface-Mount package, 500µm height, -40°C to 105°C

The TPS22915CYFPR is a single-channel high-side load switch from Texas Instruments in a 4-pin surface-mount package just 500µm tall. Its verified attributes give an operating supply range of 1.05 volts to 5.5 volts, a maximum output current of 2 amperes and an on-state resistance of 37 milliohms, drawing 7.7µA of quiescent supply current. The TPS22915CYFPR is controlled by a simple on/off input, turning on in 1.3 milliseconds and off in 2 microseconds, and Texas Instruments designates it as including an output discharge function. It is specified over -40°C to 105°C with a 125°C maximum junction temperature, is lead-free and RoHS compliant, and ships in tape-and-reel.

A load switch is an integrated high-side switch with its own gate drive and control logic, used to gate power to a subsystem under processor control so that unused blocks draw no leakage current at all rather than merely idling. Designers use them for power-domain gating and rail sequencing, inrush current control on capacitive loads, protecting downstream circuitry during fault conditions, and holding standby power down in battery-operated products. The output discharge function matters in practice because it actively pulls the load rail to ground when the switch opens, so downstream bulk capacitance cannot hold a residual voltage that would confuse the next power-up sequence. With a 500µm-tall four-pin package and single-digit-microampere quiescent current, the TPS22915CYFPR targets smartphones, wearables, tablets, cameras, solid state drives and compact IoT modules; buyers are portable and mobile product designers, module houses and their contract manufacturers.