1.4W mono Class AB in a 1.52 mm CSP
The MAX9716EBL+G45 is a Class AB audio power amplifier delivering 1.4W into a 4Ω load from a single mono channel — enough to drive a small speaker or high-impedance earpiece in a portable device. Supply range spans 2.7V to 5.5V, so it runs directly from a single Li-ion cell or a regulated 3.3V/5V rail without an extra boost converter. Housed in a 9-bump UCSP measuring 1.52 x 1.52 mm, the package footprint is tiny — the limiting factor for board area is the decoupling capacitor, not the amplifier itself.
Active lifecycle and industrial temperature grade
Rated for -40°C to +85°C ambient operation, the amplifier suits outdoor handhelds, portable instrumentation, and enclosure-mounted audio outputs that see temperature swings.
Sourcing and BOM fit
Sourced to order through independent distribution — availability and current pricing are confirmed at RFQ against your BOM quantity. The 9-UCSP package is a wafer-level chip-scale package; store the reels in dry storage (MSL level per the package drawing) and plan for a stencil with a 0.4 mm aperture to get a clean solder joint on the 0.5 mm pitch bumps.