(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. (**) Displayed Buy Now Price and Price Range is based on small quantity orders. See our Ordering FAQs for answers to questions about online orders, payment options and more. The MAX9730 is fully specified over the -40☌ to +85☌ extended temperature range and is available in ultra-small, lead-free, 20-bump WLP (2mm x 2.5mm) and 28-pin TQFN (4mm x 4mm) packages. The device utilizes fully differential inputs and outputs, comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry. High efficiency allows the MAX9730 to be packaged in a WLP package without derating the output power handling capability. Maxim's proprietary output stage provides efficiency levels greater than Class AB devices without the EMI penalties commonly associated with Class D amplifiers. The MAX9730 maximizes battery life by offering high-performance efficiency. The 2.4W output power allows for transient audio content to remain unclipped as the battery rail collapses over time.
The charge pump can supply up to 500mA of peak output current over a 2.7VDC to 5.5VDC supply voltage range, guaranteeing up to 2.4W output power into an 8Ω load. The MAX9730 features a mono Class G power amplifier with an integrated inverting charge-pump power supply.
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