Analog Devices LT80603
the LT80603 and LT80603HV support up to 3.5A, and the LT80603A and LT80603AHV provide up to 4.5A continuous current. The LT8060x and LT8060xHV enable high-VIN to lowVOUT conversion at high frequency, featuring a production-tested fast minimum top-switch on-time of 25ns (typ).FEATURES
● Silent Switcher® Architecture● Ultralow EMI Emissions
● Spread Spectrum Frequency Modulation
● High Efficiency at High Frequency
● Up to 94.3% at 400kHz, 90% at 2.1MHz, 24VIN to 5VOUT
● Up to 95.6% at 400kHz, 91.1% at 2.1MHz, 48VIN to 12VOUT
● Pin Selectable Fixed 3.3V, Fixed 5V, or Adjustable Output from 0.8V to 99% of VIN
● Low Quiescent Current Burst Mode Operation
● 8μA IQ Regulating 24VIN to 5VOUT
● On-the-Fly Mode Change Among Burst Mode, Pulse- Skipping Mode, and FCM
● Built-in Output-Voltage Monitoring and Die Temperature Monitoring with PG/TJ
● 200kHz to 3MHz Adjustable Switching Frequency with External Clock Synchronization
● 80V Transient-Input Tolerant (LT8060xHV)
● Programmable Soft-Start and Tracking
● Small 17-Lead 3mm × 3mm Quad Flat No-lead (QFN)
APPLICATIONS
● General Purpose Step-Down● Automotive and Industrial Supplies
GENERAL DESCRIPTION
The LT8060x and LT8060xHV step-down regulators family feature the Silent Switcher® architecture to minimize electromagnetic interference (EMI) emissions while delivering high efficiency at frequencies up to 3MHz.