LT1109ACS8#PBF

LT1109 is a simple step-up DC/DC converter. Current drain is just 360µA at no load, making the device ideal for cost-sensitive applications where standby current must be kept to a minimum. It can deliver 12V at over 150mA from a 5V supply, enough power to program four flash memory chips simultaneously. It can deliver 5V at upto 110mA from a 2V input. This device feature a shutdown pin that turns off the oscillator when taken low. The gated oscillator design requires no frequency compensation components. It is widely used in application such as flash memory VPP generators, 5V to 12V converters, 3.3V to 12V converters, disk drives, PC plug-in cards, peripherals, battery-powered equipment etc.

• Uses off-the-shelf inductors, low cost
• Fixed 5V or 12V output or adjustable version
• Only four external components required
• Logic-controlled shutdown
• 360µA typical standby current
• Oscillator frequency is 120KHz typical
• Duty cycle is 68% typical, switch on time is 5.5µs typical
• Input voltage range is 2V to 9V
• Operating temperature is 0°C to 70°C
• Package style is 8-lead plastic SOIC

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party