3 A adjustable buck in a 2x2 mm QFN
The 10-VQFN-HR package (2x2 mm) fits tight board layouts, and the 150°C junction temperature rating supports operation in high-ambient environments like industrial enclosures or under-hood automotive zones.
Switching frequency selection and inductor sizing
The TPS62913RPUR lets the designer select 1 MHz or 2.2 MHz switching frequency. Running at 2.2 MHz shrinks the inductor footprint and reduces output ripple, but increases switching losses; 1 MHz gives better efficiency at higher input voltages. The synchronous rectifier keeps light-load efficiency competitive, important for always-on or battery-backed rails.
Package and thermal: 10-VQFN-HR (2x2)
The 10-VQFN-HR (2x2) package is a 2x2 mm, 10-lead QFN with an exposed thermal pad. The 150°C junction rating means the part can handle elevated die temperatures, but the board-level thermal resistance still governs the real-world current capability.