TPS562219ADDFT

TPS562219A and TPS563219A are easy-to-use 2A/3A synchronous buck converters in an 8-pin SOT-23 package. Both devices are optimized to minimize external components required for operation and achieve low standby current. These SMPS devices employ D-CAP2™ mode control to provide fast transient response and support low ESR output capacitors such as high-polymer and ultra-low ESR ceramic capacitors without external compensation components. These devices operate in continuous conduction mode at all times, which reduces output ripple voltage under light load conditions compared to discontinuous conduction mode. TPS562219A and TPS563219A are available in an 8-pin 1.6mm × 2.9mm SOT (DDF) package, rated for an ambient temperature range of -40°C to 85°C.

Applications

• Digital TV power supply
• HD Blu-ray Disc player
• Network home terminal equipment
• Digital set-top box (STB)

Key features

• TPS562219A: 2A converter with integrated 133mΩ and 80mΩ FETs
• TPS563219A: 3A converter with integrated 68mΩ and 39mΩ FETs
• D-CAP2™ mode control with 650kHz switching frequency
• Input voltage range: 4.5V to 17V
• Output voltage range: 0.76V to 7V
• 650kHz switching frequency
• Low shutdown current (below 10μA)
• 1% feedback voltage accuracy (25°C)
• Start-up from pre-biased output voltage
• Cycle-by-cycle overcurrent limiting
• Discontinuous mode undervoltage protection
• Non-latching OVP, UVLO, and TSD protection
• Adjustable soft-start
• Power good output