Typical Application Circuit for LTC1555CGN GSM Cellular Telephone SIM Interface
使用 Analog Devices 的 LTC1555CGN 的参考设计
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依据最终产品
- Card Reader
- GSM
说明
- Typical Application Circuit for LTC1555CGN GSM Cellular Telephone SIM Interface. The LTC1555 provides power conversion and level shifting needed for 3V GSM cellular telephones to interface with either 3V or 5V Subscriber Identity Modules (SIMs). These parts contain a charge pump DC/DC converter that delivers a regulated 5V to the SIM card. Input voltage may range from 2.7V to 10V, allowing direct connection to the battery. Output voltage may be programmed to 3V, 5V or direct connection to the VIN pin
主要特色
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Conversion TypeDC to DC
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Input Voltage2.7 to 10 V
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Output Voltage3|5 V