NCP2990

NCP2990 1.3 Watt Audio Power Amplifier with Fast Turn On Time The NCP2990 is an audio power amplifier designed for portable communication device applications such as mobile phone applications. The NCP2990 is capable of delivering 1.3 W of continuous average power to an 8.0 W BTL load from a 5.0 V power supply, and 1.0 W to a 4.0 W BTL load from a 3.6 V power supply. The NCP2990 provides high quality audio while requiring few external components and minimal power consumption. It features a low−power consumption shutdown mode, which is achieved by driving the SHUTDOWN pin with logic low. The NCP2990 contains circuitry to prevent from “pop and click” noise that would otherwise occur during turn−on and turn−off transitions. It is a zero pop noise device when a single ended audio input is used. For maximum flexibility, the NCP2990 provides an externally controlled gain (with resistors), as well as an externally controlled turn−on time (with the bypass capacitor). When using a 1 mF bypass capacitor, it offers 60 ms wake up time. Due to its superior PSRR, it can be directly connected to the battery, saving the use of an LDO. This device is available in a 9−Pin Flip−Chip CSP (Lead−Free). Features 1.3 W to an 8.0 W BTL Load from a 5.0 V Power Supply Superior PSRR: Direct Connection to the Battery Zero Pop Noise Signature with a Single Ended Audio Input Ultra Low Current Shutdown Mode: 10 nA 2.2 V−5.5 V Operation External Gain Configuration Capability External Turn−on Ti...