The FSA2156 is a high-performance Single-Pole Single-Throw (SPST) analog switch that features ultra low R_ON of 0.4ohm (typ.) at 2.7V V_CC. The FSA2156 operates over the wide V_CC range of 1.65V to 4.3V and is fabricated with sub-micron CMOS technology to achieve fast switching speeds. The select input is TTL-level compatible.

FSA2156 features very low quiescent current even when the control voltage is lower than the V_CC supply. This feature facilitates longer battery life in mobile handset applications and allows for the direct interface with baseband-processor, general-purpose I/Os.

• Maximum 0.7ohm ON resistance (R_ON) for +2.7V supply
• 0.25ohm max R_ON flatness for +2.7V supply
• Space-saving Pb-free MicroPak™ and SC70 packaging
• Broad Vcc operating range: 1.65 to 4.3V
• Fast turn-on and turn-off times
• Over-voltage tolerant TTL-compatible control input
• Suitable for 2 UL USB2.0 applications (200mA)
• Low ICCT current over an expanded control input range