1.28 Watt Audio Power Amplifier

Features

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

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

LR6212

Leshan Radio Co ., Ltd

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