High-Current DC/DC Converters for Communications and Power Applications

MORNSUN has introduced the KD 12T-40A and KD 12T-60A, compact digital POL DC/DC converters designed for high-power applications in small communication equipment. The converters are equipped with multiple protections, such as input undervoltage, output over/under voltage, overcurrent, overtemperature, and short-circuit protection.

The converters offer up to 60A output current in a single module and can be connected in parallel to reach 120A. They have an adjustable output voltage range of 0.6V to 4.5V, suitable for various power distributed systems. The devices use the PMBus digital protocol, allowing programmable output voltage settings.

Features

• Configuration and monitoring via PMBus
• Wide input voltage range: 7.5 to 14.4VDC
• Wide output voltage range: 0.6 to 4.5VDC
• Current sharing up to 2 modules
• High efficiency up to 92%
• High output voltage deviation: ±2mV
• Low output ripple and noise: 4mV
• Fast load transient response: 18mV
• Wide operating temperature range -400C to 850C
• Ultra-small size: 40A: 33.03x13.46x10.6mm; 60A: 25.4 x 12.7 x 12.96 mm
• Tracking and output voltage sequencing, Differential remote sense
• Fixed switching frequency with capability of an external synchronization
• Current sharing function
• Input undervoltage protection
• Output over/under voltage protections
• Output over current, over temperature, short circuit protections

Applications

• Communications industry
• Computer network industry
• Power distributed architecture
• Workstations
• Servers
• LANs/WANs (Local Area Networks/Wide Area Networks)
• Providing high current with fast transient response for high-speed chips of FPGA (Field Programmable Gate Arrays), DSP (Digital Signal Processors), and ASIC (Application-Specific Integrated Circuits)