NCP2990
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 m F 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 n A
- 2.2 V- 5.5 V Operation
- External Gain Configuration Capability
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