Typical Application Circuit for LTC1555CGN GSM Cellular Telephone SIM Interface
Using Part
Vignette
1 / 1
Pour les produits finaux
- Card Reader
- GSM
Description
- 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
Caractéristiques principales
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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