Dual PWM Step-Down Converter In A 2mm X 2mm Package For WCDMA PA And RF PowerThe MAX8896 dual Step-down converter is optimized
for powering the power Amplifier (PA) and RF transceiv-
er in WCDMA handsets. This device integrates a high-
efficiency PWM Step-down converter (OUT1) for
medium and low-power transmission, and a 140mΩ
(typ) bypass FET to power the PA directly from the bat-
tery during high-power transmission. A second high-
efficiency PWM Step-down converter (OUT2) supplies
power directly to a high PSRR, low output noise, 200mA
low-dropout linear Regulator (LDO) to power the RF
transceiver. By Maxim Integrated Products
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