LT1949EMS8#PBF

LT1949 is a fixed frequency step-up DC/DC converter. Capable of generating 10V at 175mA from a 3.3V input, It is ideal for generating bias voltages for large screen LCD panels. Constant frequency 600KHz operation results in a low noise output that is easy to filter and the 30V switch rating allows output voltage upto 28V using a single inductor. An external compensation pin gives the user flexibility in optimizing loop compensation, allowing small low ESR ceramic capacitors to be used at the output. It is widely used in application such as LCD bias supplies, GPS receivers, battery backup, portable electronic equipment, diagnostic medical instrumentation etc.

• 1A, 0.5 ohm, 30V internal switch
• Operates with VIN as low as 1.5V
• Low-battery detector stays active in shutdown
• Low VCESAT switch is 410mV typical at (800mA)
• Pin-for-pin compatible with the LT1317B
• Quiescent current is 4.5mA typical at (VSHDN = 0V)
• Feedback voltage is 1.24V typical
• Maximum duty cycle is 85% typical
• Operating temperature is -40°C to 85°C
• Package style is 8-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