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| Partname: | LTC4557 |
| Description: | Dual SIM/Smart Card Power Supply and Interface |
| Manufacturer: | Linear Technology |
| Datasheet: | PDF (231K).
Click here to download *) |
The LTC4557 provides power conversion and signal level translation needed for 2.5G and 3G cellular telephones to interface with 1.8V or 3V subscriber identity modules (SIMs). The part meets all requirements for 1.8V and 3V SIMs. The part contains LDO regulators to power 1.8V or 3V SIM cards from a 2.7V to 5.5V input. The output voltages can be set using the two voltage selection pins and up to 50mA of load current can be supplied. |
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Click here to download LTC4557 Datasheet*) |
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