TPA6203A1 - 1.25-W Mono, Fully Differential, Class-AB Audio Amplifier

The TPA6203A1 is a 1.25-W mono fully differential amplifierdesigned to drive a speaker with at least 8-Ω impedance while consuming less than 37 mm² (ZQV package option) total printed-circuit board (PCB) area in most applications. This device operates from 2.5 V to 5.5 V, drawing only 1.7 mA of quiescent supply current. The TPA6203A1 is available in the space-saving 2 mm x 2 mm MicroStar Junior BGA package, and the space saving 3 mm x 3 mm QFN (DRB) package.

Features like 85-dB PSRR from 90 Hz to 5 kHz, improved RF-rectification immunity, and small PCB area makes the TPA6203A1 ideal for wireless handsets. A fast start-up time of 4 µs with minimal pop makes the TPA6203A1 ideal for PDA applications.

• 1.25 W Into 8 Ω From a5-V Supply at
  THD = 1% (Typical)
• Low Supply Current: 1.7 mA Typical
• Shutdown Control < 10 µA
• Only Five External Components
  • Improved PSRR (90 dB) and Wide Supply Voltage (2.5 V to 5.5 V) for Direct Battery Operation
  • Fully Differential Design Reduces RF
    Rectification
  • Improved CMRR Eliminates Two Input Coupling Capacitors
  • C_(BYPASS) Is Optional Due to Fully Differential Design and High PSRR
• Avaliable in a 2 mm x 2 mm MicroStar
  Junior BGA Package (GQV, ZQV)
• Available in 3 mm x 3 mm QFN Package (DRB)
• Available in an 8-Pin PowerPAD MSOP (DGN)
• APPLICATIONS
  • Designed for Wireless or Cellular Handsets and PDAs