The MAX17536ATP+ is a step-down (buck) regulator from Analog Devices, rated for 4A continuous output current from a 4.5V to 60V input rail. That 60V maximum input covers 48V telecom buses, 24V industrial supplies with transients, and 12V automotive systems with load-dump protection margin — the internal FET's breakdown voltage handles the surge without an external clamp. The synchronous rectifier (integrated low-side FET) eliminates the external Schottky diode and improves efficiency at high step-down ratios.
Switching frequency and thermal design
The switching frequency is programmable from 100 kHz to 2.2 MHz. A lower frequency (100-300 kHz) reduces switching losses and suits high step-down ratios; a higher frequency (1-2.2 MHz) shrinks the inductor and output capacitor footprint at the cost of increased FET switching loss.
Lifecycle, compliance, and sourcing
ROHS3 compliant (per), with no halogen or lead restrictions beyond the standard exemptions.