LT1944EMS#PBF

LT1944 is a dual micropower step-up DC/DC converter. Each converter is designed with a 350mA current limit and an input voltage range of 1.2V to 15V, making the device ideal for a wide variety of applications. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs upto 34V to be easily generated in a simple boost topology without the use of costly transformers. This device’s low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. It is widely used in application such as LCD bias, handheld computers, battery backup, digital cameras etc.

• Quiescent current is 20µA typical
• Operates with VIN as low as 1.2V
• Low VCESAT switch is 250mV typical at 300mA
• Uses small surface mount components
• High output voltage upto 34V
• Switch leakage current is 5µA maximum at (switch off, VSW = 5V)
• Operating temperature is -40°C to 85°C
• Package style is 10-lead plastic MSOP

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