The MAX14531E–MAX14534E high ESD-protected DP3T switches multiplex Hi-Speed (480 Mbps) USB signals, low/full-speed USB signals, and analog sig- nals such as AC-coupled audio or video through any of three channels. These devices combine the low on- capacitance (CON) and low on-resistance (RON) nec- essary for high-performance switching applications in portable electronics, and include an internal negative supply to pass AC-coupled audio signals that swing below ground (down to -2.0V). The MAX14531E– MAX14534E operate from a +2.7V to +5.5V supply. The MAX14531E–MAX14534E have a shutdown func- tion to reduce supply current and set all channels to high impedance. The MAX14531E–MAX14534E feature a VBUS detection function through the CB0 input to automatically switch to the default USB signal path upon detection of a valid VBUS signal. The MAX14532E/MAX14534E feature internal shunt resis- tors on audio channels to reduce clicks and pops heard at the output. The MAX14531E–MAX14534E are available in a space- saving, 12-bump, 1.5mm x 2.0mm WLP package and operate over the -40°C to +85°C temperature range. Applications include Cell Phones MP3 Players PDAs Notebook Computers.
The MAX14531E–MAX14534E family are high‑ESD‑protected DP3T switches that multiplex USB 2.0 Hi‑Speed (480 Mbps) signals, low/full‑speed USB, and AC‑coupled analog signals such as audio or video. They operate from a single +2.7 V to +5.5 V supply and include an internal negative supply to pass analog signals down to –2.0 V.
Key features include VBUS detection for automatic path selection, internal shunt resistors on audio channels for click‑and‑pop reduction, a space‑saving 12‑bump 1.5 mm × 2.0 mm WLP package, and ±15 kV human‑body‑model ESD protection. The device is intended for portable electronics such as cell phones, MP3 players, PDAs, and notebook computers.
| Supply Voltage Range | +2.7 V to +5.5 V |
|---|---|
| Typical Supply Current | 10 µA |
| On‑Resistance (typ) | 2 Ω |
| -3 dB Bandwidth (typ) | 800 MHz |
| VBUS Detection Input Rating | +28 V maximum |
| Package | 12‑bump 1.5 mm × 2.0 mm WLP |
| ESD Rating (Human Body Model) | ±15 kV |
| Operating Temperature Range | -40 °C to +85 °C |
| Total Harmonic Distortion + Noise | 0.05 % |
It operates from a single supply of +2.7 V to +5.5 V.
The CB0 pin provides VBUS detection; when VBUS exceeds the detection threshold, the device automatically switches the default USB signal path.
Internal 100 Ω shunt resistors on the MAX14532E and MAX14534E variants discharge capacitance, suppressing audio click‑and‑pop.
Typical on‑resistance is about 2 Ω.