LR6212 Datasheet, PDF (1/10 Pages) Leshan Radio Company – 1.28 Watt Audio Power Amplifier Ultra low shutdown current

Leshan Radio Co ., Ltd
1.28 Watt Audio Power Amplifier
Features
LR6212
‰ Improved PSRR at 217 Hz & 1 KHz
62 dB
‰ Power output at 5.0V, 1% THD+N, 8Ω 1.28 W (typ.)
‰ Power output at 3.0V, 1% THD+N, 8Ω 440 mW (typ.)
‰ Ultra low shutdown current
0.1 uA (typ.)
‰ 2.2V – 5.5V operation
‰ Improved circuitry eliminates pop-click noise during turn-on and turn-off transitions
‰ No output coupling capacitors, snubber networks or bootstrap capacitors required
‰ Unity-gain stable
‰ External gain configuration capability
‰ Available in space-saving packages: MSOP8, 9-BUMP WLCSP
General Description
The LR6212 is a Class-AB audio power amplifier designed for mobile phones and other portable
communication devices. It is capable of delivering 1.28 watts of continuous average power to an
8Ω BTL load with less than 1% distortion (THD+N) from a 5V_DC power supply.
The LR6212 was designed specifically to provide high quality output power with a minimal
amount of external components. It does not require output coupling capacitors or bootstrap
capacitors. And with ultra low shutdown current, the LR6212 is ideally suited for mobile phone
and other low voltage applications where minimal power consumption is a primary requirement.
With special pop-click eliminating circuit, the LR6212 provides perfect pop-click characteristic
during turn-on and turn-off transitions.
The LR6212 is unity-gain stable and can be configured by external gain-setting resistors.
Applications
‰ Wireless handsets
‰ Portable electronic devices
‰ PDAs, Handheld computers
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