DESCRIPTION
The LT1109 is a simple step-up DC/DC converter. Available in 8-pin SO, 3-lead TO-92 (fixed output only) or miniDIP packages, the devices require only three external components to construct a complete DC/DC converter. Current drain is just 320µA at no load, making the device ideal for cost-sensitive applications where standby current must be kept to a minimum.

FEATURES
■ Uses Off-the-Shelf Inductors
■ Only 33µH Inductor Required
■ Low Cost
■ 3-Lead TO-92, SO8, or 8-Pin DIP
■ Adjustable or Fixed 5V or 12V Output
■ 120kHz Oscillator
■ Only Three External Components Required
■ 320µA IQ
■ 1.6V Minimum Start-Up Voltage
■ Logic Controlled Shutdown

APPLICATIONS
■ Flash Memory VPP Generators
■ 3V to 5V Converters
■ 5V to 12V Converters
■ Disk Drives
■ PC Plug-In Cards
■ Peripherals
■ Battery-Powered Equipment