用于WCDMA蜂窝电话的600mA buck稳压器

MAX1820/MAX1821低压差、脉宽调制(PWM) DC-DC buck转换器专为WCDMA蜂窝电话功率放大器(PA)供电设计，当然，它也可以用于其它需要优先考虑高效率的应用。供电电压范围2.6V至5.5V，保证输出电流达600mA，1MHz PWM开关频率允许采用小尺寸外部元件，跳频模式使轻载静态电流降低至180µA。\n MAX1820可以动态控制，提供0.4V至3.4V的输出电压范围。在电压和电流的满量程范围内，该电路的设计能够保证在<30µs内建立输出电压。MAX1821通过外部电阻设置输出电压，提供1.25V至5.5V固定输出电压范围。\n MAX1820/MAX1821具有一 \n• 1.25V至5.5V可编程输出(MAX1821) \n• 可同步至19.8MHz的外部时钟(MAX1820Y) \n• 低静态电流 \n• 关断模式下0.1µA (典型值) \n• 保证600mA输出电流 \n• 600mA负载(包括外部电感的RDC)时压差仅150mV \n• µMAX或UCSP封装;

ADI

亚德诺

PLASTIC ENCAPSULATED DEVICES

[MaximIC] Device Description A. General The MAX1820 low-dropout, pulse-width-modulated (PWM) DC-DC buck regulator is optimized to provide power to the power amplifier (PA) in WCDMA cell phones; however, it may be applied in many other applications where high efficiency is a priority. The supply

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ETCList of Unclassifed Manufacturers

未分类制造商

INTEGRATED CIRCUITS

INTEGRATED CIRCUITS FROM MOTOROLA MDTL integrated circuits provide an excellent balance of speed power dissipation, and noise immunity for general purpose digital applications. The line includes many multifunction types. Additional logic power is provided by the wired OR capability of the basic M

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MOTOROLA

摩托罗拉

SCORPION MODULAR POWER, SIGNAL CONNECTORS

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POSITRONIC

SCORPION MODULAR POWER, SIGNAL CONNECTORS

文件：952.99 Kbytes 页数：16 Pages

POSITRONIC