LT8641EUDC#TRPBF

LT8641 is a step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at frequencies upto 3MHz. This device allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch onetime of 35ns. Operation is safe in overload even with a saturated inductor. Essential features are included and easy to use: An open drain PG pin signals when the output is in regulation. The SYNC/MODE pin selects between Burst Mode, pulse skipping, or spread spectrum mode, and also allows synchronization to an external clock. Soft-start and tracking functionality is accessed via the TR/SS pin. An accurate enable threshold can be set using the EN/UV pin and a resistor at the RT pin programs switch frequency. It is widely used in application such as automotive and industrial supplies, general purpose step-down, GSM power supplies etc.

• Wide input voltage range is 3V to 65V
• 3.5A maximum continuous output, 5A peak transient output
• 2.5µA quiescent current
• Output ripple is <lt/> 10mVP-P
• Low dropout under all condition is 130mV at 1A
• Safely tolerates inductor saturation in overload
• Peak current mode operation
• Output soft-start and tracking
• Operating temperature is -40°C to 125°C
• Packaging style is 18-lead plastic QFN

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