The MAX77271 step-down converter is optimized forpowering the power amplifier (PA) in multistandard handsetssuch as LTE, WCDMA, TD-SCDMA, GSM, andEDGE. The device integrates a high-efficiency PWM stepdownconverter for medium- and low-power transmissionwith an 85mΩ (typ) low dropout (LDO) bypass regulator,in parallel with the step-down converter, enabling highpowertransmission.

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