LTC7810ELXE#PBF

LTC7810 is a high performance dual step-down DC/DC switching regulator controller that drives all N-channel synchronous power MOSFET stages that can operate from voltages upto 140V. The low no-load quiescent current extends operating run time in battery-powered systems. It features a precision 1V reference, enabling the output voltage to be programmed from 1V to 60V. The gate drive voltage for the device can be programmed to 6V, 8V, or 10V to allow the use of logic-level or standard-threshold FETs and to maximize efficiency. This device additionally features spread spectrum operation which significantly reduces the peak radiated and conducted noise on both the input and output supplies, making it easier to comply with electromagnetic interference (EMI) standards. It is used in application such as automotive and transportation, industrial and telecommunications, military/avionics etc.

• Wide VIN range is 4.5V to 140V
• Regulated output voltage set point is 1V to 60V
• VIN current in regulation is 16μA typical
• Optional spread spectrum operation, very low dropout: 100% duty cycle operation
• RSENSE or inductor DCR current sensing, programmable input overvoltage lockout
• Low fixed frequency is 200KHz typical at (VFREQ = 0V, PLLIN/SPREAD = 0V)
• High fixed frequency is 300KHz typical at (VFREQ = INTVCC, PLLIN/SPREAD = 0V)
• On-board LDO or external NMOS LDO for DRVCC, EXTVCC LDO powers drivers from VOUT
• Operating temperature is -40°C to 125°C
• Package style is 48-lead plastic eLQFP

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