MAX9730
2.4W, Single-Supply Class G Power Amplifier
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Highest Output Power Speaker Amplifier From a Battery
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Features
- 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
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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
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MAX9730
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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
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| MAX9730ETI+T |
Thin Quad Flatpack, No Leads
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| MAX9730EWP+G45 |
20-WLCSP-N/A
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| MAX9730EWP+TG45 |
20-WLCSP-N/A
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- MAX9730ETI+
- Pin/Package Drawing
-
Thin Quad Flatpack, No Leads
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX9730ETI+T
- Pin/Package Drawing
-
Thin Quad Flatpack, No Leads
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX9730EWP+G45
- Pin/Package Drawing
-
20-WLCSP-N/A
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- MAX9730EWP+TG45
- Pin/Package Drawing
-
20-WLCSP-N/A
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
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Product Lifecycle
PCN
Jun 20, 2016
- 1612
ASSEMBLY
MAX9730ETI+
PRODUCTION
MAX9730ETI+T
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Jun 20, 2016
- 1612
ASSEMBLY
Evaluation Kits 1
MAX9730EVKIT
Evaluation Kit for the MAX9730
Product Detail
The MAX9730 evaluation kit (EV kit) is a fully assembled and tested PCB that uses the MAX9730 Class G power amplifier to drive a bridge-tied-load (BTL) speaker in portable audio applications. Designed to operate from a 2.7V to 5.5VDC power supply, the EV kit accepts a single-ended or differential input signal. The EV kit provides a fully differential output capable of delivering 2.4W into an 8Ω speaker.