LTC1986 - 3V/5V SIM Power Supply In ThinSOT

The LTC1986 is a micropower Charge Pump DC/DC converter that provides power for either 3V or 5V GSM SIM cards. It operates in one of three modes: VOUT = 5V (5V mode), VOUT = VIN (3V mode) or shutdown. The input voltage range is 2.6V to 4.4V and the part CAN provide 10mA of output current. The LTC1986 allows VIN to drop as low as 2.6V by providing a boost feature in 3V mode. In 3V mode, VOUT is connected directly to VIN through a 2.5W Switch until VIN drops below 2.85V. When VIN is below 2.85V, the part automatically boosts VOUT to maintain a regulated 2.9V output, thereby ensuring VOUT stays within the 3V SIM VCC specification.
Extremely low operating current (14A typical with no load) and low external parts count make the part ideally suited for small, light load battery-powered applications. The total PCB area of the application circuit shown below is less than 0.045in. Protection features include inrush current limiting, undervoltage lockout, short circuit and thermal overload protection. The LTC1986 is available in a low profile (1mm) SOT-23 package.
By Linear Technology Corporation
LTC1986 's PackagesLTC1986 's pdf datasheet

LTC1986 Pinout, Pinouts
LTC1986 pinout,Pin out
This is one package pinout of LTC1986,If you need more pinouts please download LTC1986's pdf datasheet.

LTC1986 Application circuits
LTC1986 circuits
This is one application circuit of LTC1986,If you need more circuits,please download LTC1986's pdf datasheet.

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