The MAX1564 is a triple, current-limited USB switch with a space-saving package and multiple protection features. It can supply up to 1.2A of current from each output.
The MAX1564 is a triple, current‑limited USB switch offered in a space‑saving 16‑pin 4 mm × 4 mm thin QFN package. Each channel can supply up to 1.2 A and meets all USB specifications. The device includes reverse‑current blocking, programmable current‑limit circuitry, auto‑restart after faults, and independent fault‑indicator outputs.
Typical applications include USB ports for hubs, notebook and desktop computers, and docking stations. The datasheet provides absolute maximum ratings, electrical characteristics, pin descriptions, and a reference application circuit.
| Supply Voltage Range | 2.75 V – 5.50 V |
|---|---|
| Continuous Load Current | 1.2 A per output |
| Input Supply Range | 2.7 V – 5.5 V |
| Package | 16‑Pin 4 mm × 4 mm Thin QFN (TQFN‑EP) |
| ESD Protection | +15 kV |
| Reverse‑Current Blocking | Enabled (blocks reverse current when disabled) |
| Auto‑Restart | Enabled after fault removal |
| Fault Blanking | 20 ms built‑in |
Each output can supply up to 1.2 A of load current.
The device includes reverse‑current blocking circuitry that disables the switch when reverse current exceeds the limit.
The output latches off after more than 20 ms, asserts a fault flag, and then auto‑restarts by sourcing 25 mA to test the fault removal.
It is offered in a 16‑pin 4 mm × 4 mm thin QFN (TQFN‑EP) package.