TC2018

TC2018 is a FM-interference-free, Class AB/Class D selectable power amplifier. At 5V supply voltage, the maximum output power is 5W (2Ω, BTL load, THD>10%). TC2018 features a simple application circuit requiring minimal external components, with integrated feedback resistors; no external coupling capacitors, bootstrap capacitors, or snubber networks are required at the output. TC2018 is available in an ESOP8 package, making it particularly suitable for portable systems with small form factor and lightweight requirements. Power consumption can be reduced by enabling shutdown mode via control pin. TC2018 incorporates an internal over-temperature automatic shutdown protection mechanism; it operates reliably with a gain-bandwidth product of up to 2.5MHz and is unity-gain stable. With built-in feedback resistors, the amplifier voltage gain and optimal audio quality can be adjusted by configuring external component parameters for ease of application. It is the perfect solution for USB subwoofers and amplifiers.

Applications

• Laptops, desktop computers
• Portable speakers / card speakers
• Low-voltage audio systems, USB, 2.1/2.0 multimedia speakers

Key features

• FM interference-free, high efficiency, superior audio quality with high output power (THD+N <10%, 1KHz): maximum output power 5W (2Ω load) and 3.2W (4Ω load)
• Low leakage current in shutdown mode
• Adjustable external gain, integrated feedback, wide operating voltage range 2.5V~5.5V, low distortion and low noise
• Over-temperature protection
• Power-on POP suppression
• ESOP8 package