STG3157 is a high-performance SPDT CMOS switch with a working voltage range of 1.65V to 5.5V, fast switching speed, and low switching resistance less than 9Ω. It supports 2:1 switching function
The STMicroelectronics STG3157 is a low voltage, low on-resistance SPDT switch or 2:1 multiplexer/demultiplexer manufactured using silicon gate CMOS technology. It is designed for portable applications with a wide operating voltage range of 1.65 V to 5.5 V single supply.
Key features include high-speed switching (up to 0.3 ns propagation delay at 4.5V), ultra-low power dissipation, and very low on-resistance (<9 Ω). The device includes protection circuits against static discharge and transient excess voltage for all inputs and outputs.
| Operating voltage range | 1.65 V to 5.5 V single supply |
|---|---|
| Maximum propagation delay at 4.5V | 0.3 ns |
| On-resistance max at 4.5V | 9 Ω |
| Maximum output current | +128 mA |
| Operating temperature range | -55 to 125 °C |
The absolute maximum rating for supply voltage (Vcc) is +7.0 V.
Yes, it features a break-before-make delay time of 0.5 ns.
The STG3157CTR order code uses the SOT323-6L package.