Load switch in a 0.90 mm footprint
The Toshiba TCK207G,LF is a single-channel, N-channel high-side load switch in a 4-WCSP package measuring 0.90 x 0.90 mm. It handles a continuous output current of 2 A with a typical on-resistance of 18.1 mOhm, making it a compact power-rail gating solution for portable and battery-powered designs.
Voltage range and protection
No external Vcc supply is needed — the switch is self-powered from the load rail. Built-in reverse-current blocking prevents back-feed from the output to the input when the switch is off. The slew-rate controlled turn-on limits inrush current into capacitive loads, and the integrated load-discharge resistor pulls the output to ground when disabled.
The 4-WCSP (0.90x0.90 mm) package requires a fine-pitch PCB layout — the 0.50 mm ball pitch typical of this footprint demands careful solder-paste stencil design for reliable assembly.