DESCRIPTION
The LT®1306 is a fully integrated, fixed frequency synchronous boost converter capable of generating 5V at 1A from a Li-Ion cell. The device contains both the main power switch and synchronous rectifier on chip and automatically disconnects the output from the input in shutdown, eliminating the need for external load disconnect circuitry. Additionally, the output remains regulated when VIN exceeds VOUT, allowing difficult step-up/stepdown converter functions to be easily realized using a single inductor.

FEATURES
■ Output Disconnected from Input During Shutdown
■ Output Voltage Remains Regulated When VIN > VOUT
■ Controlled Input Current During Start-Up
■ 300kHz Current Mode PWM Operation
■ Can Be Externally Synchronized
■ Internal 2A Switches
■ Operates with VIN as Low as 1.8V
■ Automatic Burst Mode Operation at Light Loads
■ Quiescent Current: 160µA
■ Shutdown Current: 9µA Typ

APPLICATIONS
■ Satellite Phones
■ Portable Instruments
■ Personal Digital Assistants
■ Palmtop Computers