XPT4088 one class AB, two-way road and bridge joint audio power amplifier, in 5 v power supply voltage and Ω load, can provide the power of 2.7 W. With low power consumption turn off mode and thermal protection function. In a circuit which, when activated, with buffer and prevent dithering function.

XPT4088 application circuit is simple, only need a few peripheral device output does not need external coupling capacitance uplift capacity, the SOP/QFN package, save the circuit area, heat dissipation performance is good, very suitable for mobile phone and all kinds of mobile equipment low voltage, low power consumption application solutions in use.

XPT4088 can through the control into sleep mode, so as to reduce power consumption. XPT4088 through innovation "switch/switching noise" inhibition technology, to eliminate the power on and off electric appear noise.

XPT4088 work stability, gain bandwidth product as high as 3.5 MHz, and unit gain stability. The feedback resistance external, through the configuration peripheral resistance can adjust the amplifier voltage gain, convenient application.

The main characteristics
PO: THD + N = 1%, VDD = 5 v
RL = 4 Ω 2.2 W (typ)
RL = 8 Ω 1.4 W (typ)
PO: THD + N = 10%, VDD = 5 v
RL = 4 Ω 2.7 W (typ)
RL = 8 Ω 1.7 W (typ)
PO: THD + N = 1%, VDD = 4 v
RL = 4 Ω 1.4 W (typ)
RL = 8 Ω 0.88 W (typ)
Power down mode leakage current is small, less than 1 µ A
Packaging is small, save circuit area: SOP16 / ESOP16 / QFN4 x 4-16 l (4 mm * 4 mm * 0.75 mm)
Power on and off electrical noise suppression
Working voltage range: 2.5 V, 5.5 V
Has the dormancy control function

Application field
Mobile phone (cell phone, etc.)
Personal mobile terminal (PDA/MP3 / MP4 / PMP, etc.)
Bench audio equipment