2 A step-down buck at 1.6 MHz — what it means for the rail
The LM2832XSD/NOPB: The adjustable output range spans 0.6 V (the internal reference) up to 4.5 V, set by a resistor divider from the FB pin. This covers common core and I/O rails for 3.3 V and 1.8 V logic, plus lower voltages for DSP or FPGA core supplies.
Package and thermal: 6-WSON exposed pad
The non-synchronous topology means an external Schottky catch diode is needed — the 2 A output current demands a diode rated at least 2 A forward and 10 V reverse (e.g., a 2 A, 20 V Schottky in SOD-123 or SMA). The diode's forward drop and reverse recovery directly affect efficiency, especially at high switching frequency.
The 'NOPB' suffix confirms lead-free / ROHS3 compliance per TI's standard marking.