LT3682EDD#PBF

LT3682 is a monolithic buck switching regulator. A high efficiency 0.5ohm switch is included on the device along with a boost diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability. A SYNC pin allows the user to synchronize the part to an external clock, and to choose between low ripple burst mode operation and standard PWM operation. The Low Ripple Burst Mode maintains high efficiency at low output currents while keeping output ripple below 15mV in typical applications. A power good flag signals when VOUT reaches 90% of the programmed output voltage. Protection circuitry senses the current in the power switch and external schottky catch diode to protect the device against short-circuit conditions. It is used in application such as automotive battery regulation, automotive entertainment systems, industrial supplies, power for portable products, distributed supply regulation etc.

• Wide input range is 3.6V to 36V
• Overvoltage lockout protects circuits through 60V transients
• 1A output current, short-circuit protected
• Feedback reference voltage is 0.8V
• Output voltage range is 0.8V to 20V
• Soft-start capability, power good flag
• Switching frequency is 2.2MHz typical at (RRT = 8.06Kohm)
• Switch VCESAT is 460mV typical at (ISW = 1A)
• Operating temperature is -40°C to 125°C
• Package style is 12-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