LT3663EMS8E-5#PBF

LT3663 is a current mode step-down switching regulator with programmable output current limit. The current limit accurately controls the system power dissipation and reduces the size of the power path components. It includes a low current shutdown mode, input overvoltage and undervoltage lockout, and thermal shutdown. Internal compensation and boost diode minimize the number of external exponents. 3.3V and 5V fixed output voltage versions are available. It is used in application such as distributed supply regulation, automotive battery regulation, industrial supplies, wall transformer regulation.

• Operating voltage range is 7.5V to 36V
• Overvoltage lockout protects circuit through 60V transients
• Programmable output current limit (0.4A to 1.2A)
• Integrated boost diode
• Low switch VCESAT is 275mV typ at 1A
• Internally compensated, thermal protection
• Operating frequency is 1500KHz typical at (TA = 25°C, VIN = 12V)
• VIN supply current is 2.4mA typ at (TA = 25°C, VIN = 12V)
• VIN supply current in shutdown is 2µA max at (VRUN = 0V, TA = 25°C, VIN = 12V)
• Operating temperature is -40°C to 125°C, package style is 8-lead plastic MSOP

Notes

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