Description

The LTC3610 is a high efficiency, monolithic synchronous step-down DC/DC converter that delivers up to 12A of output current from a 4V to 24V (28V maximum) input supply. It features a valley current control architecture to achieve low duty cycle operation at high frequency with excellent transient response. The operating frequency can be selected by an external resistor, and is compensated for variations in VIN and VOUT. The LTC3610 can be configured for discontinuous or forced continuous operation at light load. Forced continuous operation reduces noise and RF interference while discontinuous mode provides high efficiency by reducing switching losses at light loads.

Specifications and features

• 12A Output Current
• Wide VIN Range = 4V to 24V
• Internal N-Channel MOSFETs
• True Current Mode Control
• Optimized for High Step-Down Ratios
• tON(MIN) ≤ 100ns
• Extremely Fast Transient Response
• Stable with Ceramic COUT
• ± 1% 0.6V Voltage Reference
• Power Good Output Voltage Monitor
• Adjustable On-Time/Switching Frequency
• Adjustable Current Limit
• Programmable Soft-Start
• Output Overvoltage Protection
• Optional Short-Circuit Shutdown Timer
• Low Shutdown IQ: 15µA
• Available in a 9mm × 9mm 64-Pin QFN Package

Application Scenarios

The LTC3610 is suitable for point of load regulation and distributed power systems.

Comparison

• High efficiency
• Fast transient response
• Stable with ceramic COUT
• Adjustable current limit and soft-start
• Output overvoltage protection
• Low shutdown IQ
• Available in a 9mm × 9mm 64-Pin QFN Package

• None