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APA2181
Low Supply Current, 50mW Stereo Cap-Free Headphone Driver
Features
General Description
• Operating Voltage: 2.3V~5.5V
• Supply Current
- I =1mA at V =3.6V
DD
DD
• Low Shutdown Current
- IDD=5µA at VDD=3.6V • Ground Reference Output
- No Output Capacitor Required (for DC Blocking)
- Save the PCB Space
- Reduce the BOM Costs
- Improve the Low Frequency Response
•
Output
Power
50mW/Ch
into
16Ω
at
V =3.6V DD
• High PSRR: 80dB at 217Hz
• Fast Start-Up Time: 4ms
• Integrate the De-pop Circuitry
• Thermal Protection
• Integrated LDO (Low Dropout Regulator) for
Microphone Detection Circuit (1.9V)
• Surface-Mount Packaging
WLCSP1.6x1.