LTC3609IWKG#PBF

LTC3609 is a high efficiency, monolithic synchronous step-down DC/DC converter. It uses a valley current control architecture to deliver very low duty cycle operation at high frequency with excellent transient response. The operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT. It 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. Fault protection is provided by internal foldback current limiting, an output overvoltage comparator and an optional short-circuit shutdown timer. Soft-start capability for supply sequencing is accomplished using an external timing capacitor. The regulator current limit is user programmable. It is used in application like point of load regulation, distributed power systems etc.

• 6A output current, wide VIN range is 4V to 32V
• Internal N-channel MOSFETs, true current mode control
• Optimized for high step-down ratios, extremely fast transient response
• Stable with ceramic COUT, 0.6V voltage reference
• Power good output voltage monitor, adjustable on-time/switching frequency
• Adjustable current limit
• Output overvoltage protection, optional short-circuit shutdown timer
• Low shutdown current is 15µA typical, tON(MIN) is 60ns typical
• Operating junction temperature is -40°C to 125°C
• Package style is 52-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