LM4889LDX

LM4889LDX Description

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LM4889LDX Datasheet (PDF)

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LM4889LDX Features

• Available in space-saving MSOP, SOIC, LLP, and micro SMD packages
• Ultra low current shutdown mode (3.3 to 2.6V - 0.01ľA)
• Can drive capacitive loads up to 500 pF
• Improved pop & click circuitry eliminates noises during turn-on and turn-off transitions
• 2.2 - 5.5V operation
• No output coupling capacitors, snubber networks or bootstrap capacitors required
• Unity-gain stable
• External gain configuration capability

LM4889LDX Description

The LM4889 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt of continuous average power to an 8 BTL load with less than 2% distortion (THD+N) from a 5V_DC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4889 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4889 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the LM4889 features an internal thermal shutdown protection mechanism.

The LM4889 contains advanced pop & click circuitry to eliminate noise which would otherwise occur during turn-on and turn-off transitions.

The LM4889 is unity-gain stable and can be configured by external gain-setting resistors.

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