MAX9730
PRODUCTION2.4W, Single-Supply Class G Power Amplifier
Highest Output Power Speaker Amplifier From a Battery
- Part Models
- 4
- 1ku List Price
- Starting From $1.12
Part Details
- 2.7V to 5.5V Operation
- Integrated Charge-Pump Power Supply
- 63% Efficiency (VCC = 5V, POUT = 1W)
- 2.4W Output Power into 8Ω at VCC = 5V
- Clickless/Popless Operation
- Small Thermally Efficient Packages
- 2mm x 2.5mm 20-Bump WLP
- 4mm x 4mm 28-Pin TQFN
The MAX9730 features a mono Class G power amplifier with an integrated inverting charge-pump power supply. 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 2.4W output power allows for transient audio content to remain unclipped as the battery rail collapses over time.
The MAX9730 maximizes battery life by offering high-performance efficiency. Maxim's proprietary output stage provides efficiency levels greater than Class AB devices without the EMI penalties commonly associated with Class D amplifiers. High efficiency allows the MAX9730 to be packaged in a WLP package without derating the output power handling capability.
The device utilizes fully differential inputs and outputs, comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry. The MAX9730 is fully specified over the -40°C to +85°C 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.
Applications
- Cellular Phones
- Handheld Gaming Consoles
- MP3 Players
- Notebook Computers
- Personal Media Players
- Smartphones
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX9730ETI+ | Thin Quad Flatpack, No Leads | ||
| MAX9730ETI+T | Thin Quad Flatpack, No Leads | ||
| MAX9730EWP+G45 | 20-WLCSP-N/A | ||
| MAX9730EWP+TG45 | 20-WLCSP-N/A |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| MAX9730ETI+ | PRODUCTION | |
| MAX9730ETI+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Evaluation Kits
Evaluation Kit for the MAX9730
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