MAX1686|MAX1686H - 3V至5V稳压型电荷泵，用于SIM卡
MAX1686|MAX1686H是Maxim美信半导体公司的一款电荷泵产品，MAX1686|MAX1686H是3V至5V稳压型电荷泵，用于SIM卡，本站介绍了MAX1686|MAX1686H的封装应用图解、特点和优点、功能等，并给出了与MAX1686|MAX1686H相关的Maxim元器件型号供参考。
MAX1686|MAX1686H - 3V至5V稳压型电荷泵，用于SIM卡 - 电荷泵 - 1MHz电荷泵，可理想用于蜂窝电话 - 美信半导体
产品概述
The MAX1686 provides power for dual-voltage subscriber ID module (SIM) cards in portable applications such as GSM cellular phones. Designed to reside in the portable unit (cellular phone handset), the 1MHz charge pump converts a 2.7V to 4.2V input to regulated 5V output. The MAX1686H has anominal output voltage of 5.0V, while the MAX1686 is set to 4.75V to reduce SIM card current drain. The charge pump has only 45µA quiescent supply current, which reduces to 3µA when a 3V-capable SIM card is being powered and the charge pump is disabled. An internal input/output shorting switch provides power for 3V SIM cards.
The MAX1686/MAX1686H require only three external capacitors around their space-saving, thin (1mm) 8-pin µMAX® packages.
关键特性
以下关键特性由Maxim美信半导体提供：2.7V to 4.2V Input Range12mA min Charge-Pump Output Current45µA Quiescent Supply Current0.1µA Supply Current in Shutdown Mode5.0V Regulated Charge-Pump Output (MAX1686H)4.75V Regulated Charge-Pump Output (MAX1686)Input-Output Shorting Switch for 3V CardsSmall External Components (Uses a 0.047µF, 0.1µF, and a 2.2µF Capacitor)Output Driven to Ground in Shutdown ModeSuper-Small 8-Pin µMAX PackageSoft-Start and Short-Circuit ProtectionRegulated charge pump for SIM cards nominal output voltage of 5.0V (MAX1686H)热门应用
GSM蜂窝电话PCS电话个人通信装置便携式POS终端
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