RAA2214504GNP Integrated Circuit Chip Synchronous Buck Converter with 4.5V to 42V Input 5A Continuous Output Industrial Grade Power Supply Module

RAA2214504GNP is a synchronous buck switch-mode power supply (SPS) module with an integrated high-side FET, designed specifically for high-current-density applications such as servers, data centers, telecommunications equipment and industrial computing.

• Input voltage: 4.5V to 42V
• Output voltage: 0.8V to 37.8V
• Output current: 5A continuous (6A peak)
• Switching frequency: Default 400kHz, programmable from 200kHz to 800kHz
• Efficiency: Peak 90%, high efficiency in light-load PFM mode
• Quiescent current: Typical 95μA (low-power standby)
• Package: QFN
• Temperature range: -40°C to +125°C (industrial grade)
• Protection mechanisms: Cycle-by-cycle current limit, input UVLO, output short-circuit protection, thermal shutdown

• High integration: Built-in high-side 90mΩ and low-side 37mΩ MOSFETs simplify the peripheral circuitry
• High-precision voltage regulation: ±1% load regulation (full temperature range), ±0.5% (25°C)
• Internal compensation: No external compensation components required, resulting in a simple design and high stability
• Soft start: Fixed 0.5ms soft start to suppress inrush current
• Power Good (PG) Indicator: The PG signal goes high once the output has stabilized, for system monitoring
• External Bias LDO: Supports low-power bias, reducing power consumption under light loads

• Industrial control: PLCs, sensor nodes, industrial communication gateways
• Communications equipment: Base station power supplies, power-over-Ethernet (PoE) for network equipment
• Medical equipment: Portable diagnostic instruments, low-power monitoring devices
• Consumer electronics: USB-C adapters, smart home appliances, battery-powered devices