U0339

U0339 is a high-frequency, synchronous rectified, step-down switching mode converter with integrated power MOSFETs. It provides a highly compact solution capable of delivering up to 3A output current over a wide input voltage range, with excellent load and line regulation. ECOT PSM control operation delivers very fast transient response, easy loop design, and very tight output regulation. The U0339 requires a minimal number of standard off-the-shelf external components and is available in a space-saving ESOP8 package.

Applications

• Digital Set-Top Box (STB)
• High-Definition Blu-ray Disc Players
• Security Surveillance
• Digital TV Power Supply
• Network Home Terminal Equipment
• General Purpose

Key features

• Wide 4.5V to 28V operating input range
• 3A maximum output current
• 500KHz switching frequency
• ECOT PSM mode control with fast transient response
• Built-in overcurrent limiting
• Built-in overvoltage protection
• PFM mode for high efficiency at light load
• Internal soft-start
• 100mΩ/50mΩ low RDS(ON) internal power MOSFET
• Output adjustable from 0.6/0.8/0.765/0.923V
• No Schottky diode required
• Short-circuit protection with hiccup mode
• Integrated internal compensation
• Thermal shutdown
• ESOP8 package
• -40°C to +85°C temperature range