Fixed 5V boost with 3.6A switch — the load-fit decision
The TPS61032PWPR is a step-up (boost) converter that delivers a fixed 5V output. The 3.6A switch current rating is the ceiling for the inductor peak current — not the continuous output current. For a 5V rail, the usable load current depends on input voltage and efficiency; at 3.3V in, expect roughly 2A output before the switch current limit is reached. The fixed output means this part cannot be adjusted to 3.3V or 12V — it is a 5V-only rail. Input range spans 1.8V to 5.5V, so a single Li-Ion cell (3.0V–4.2V) or two alkaline cells (1.8V–3.0V) can feed it. The 600kHz switching frequency is a middle ground — high enough to keep inductor size small, low enough to avoid excessive switching losses in the 16-HTSSOP package.
Industrial temp grade and synchronous rectification
A 2-layer board with a solid ground pour under the pad is the minimum; 4-layer boards with a dedicated thermal via array improve heat spreading.
TPS61032PWPR carries an Active product status from Texas Instruments. For BOM quantities, we source per RFQ and confirm current pricing and lead time at quote.