TPA6130A2_17 Datasheet, PDF (27/39 Pages) Texas Instruments – 138-mW DIRECTPATH Stereo Headphone Amplifier with I2C Volume Control

www.ti.com
TPA6130A2
SLOS488F – NOVEMBER 2006 – REVISED MARCH 2015
10 Power Supply Recommendations
The device is designed to operate from an input voltage supply range of 2.5 V to 5.5 V. Therefore, the output
voltage range of power supply should be within this range and well regulated. The current capability of upper
power should not exceed the max current limit of the power switch.
11 Layout
11.1 Layout Guidelines
Exposed Pad On TPA6130A2RTJ Package Option:
• Solder the exposed metal pad on the TPA6130A2RTJ QFN package to the a pad on the PCB. The pad on
the PCB may be grounded or may be allowed to float (not be connected to ground or power).
• If the pad is grounded, it must be connected to the same ground as the GND pins (3, 9, 10, 13, and 19).
• Soldering the thermal pad improves mechanical reliability, improves grounding of the device, and enhances
thermal conductivity of the package.
GND Connections:
• The GND pin for charge pump should be decoupled to the charge pump V_DD pin, and the GND pin adjacent
to the Analog V_DD pin should be separately decoupled to each other.
Copyright © 2006–2015, Texas Instruments Incorporated
Product Folder Links: TPA6130A2
Submit Documentation Feedback
27