DESCRIPTIO U
The LTC1337 is a 3-driver/5-receiver RS232 transceiver with very low supply current. In the no load condition, the supply current is only 300µA. The charge pump only requires four 0.1µF capacitors and can supply up to 12mA of extra current to power external circuitry.

FEATURES
■ Low Supply Current: 300µA
■ 1µA Supply Current in SHUTDOWN
■ ESD Protection: Over ±10kV
■ Operates from a Single 5V Supply
■ Uses Small Capacitors: 0.1µF
■ Operates to 120k Baud
■ Three-State Outputs Are High Impedance When Off
■ Output Overvoltage Does Not Force Current Back into
   Supplies
■ RS232 I/O Lines Can Be Forced to ±25V without
   Damage
■ Pin Compatible with LT1137A and LT1237
■ Flowthrough Architecture

APPLICATIONS
■ Notebook Computers
■ Palmtop Computers