LT3479EDE#PBF

LT3479 is a current mode, fixed frequency step-up DC/DC converter with an internal 3A, 42V switch. Efficiencies of upto 89% can be achieved in typical applications. It features a programmable soft-start function to limit inductor current during start-up and inrush current protection to protect the device during shorts and line transients. Both inputs of the error amplifier are available to the user allowing positive and negative output voltages. Through an external resistor, the user can program the switching frequency from 200KHz to 3.5MHz. It is widely used in application such as high power LED driver, DSL modems, distributed power etc.

• Wide input voltage range is 2.5V to 24V
• Soft-start, protection against input short circuits and hot plugging
• Low VCESAT switch is 0.3V typical at 2.5A
• Capable of positive and negative outputs
• Quiescent current is 0.1μA typical at (VIN = 2.5V, VSHDN = 0V)
• Reference voltage line regulation is 0.01%/V typical at (2.5V <lt/> VIN <lt/> 24V, VC = 0.3V)
• Operating temperature is -40°C to 85°C
• Package style is 14-lead plastic DFN

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