TPS53310RGTR

The TPS53310 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm² of PCB area. Due to the low RDS(on) and TI's proprietary SmoothPWM™ Skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-μF ceramic output capacitors for a power dense 3-A solution. The TPS53310 features a 1.1-MHz switching frequency, SKIP mode operation support, pre-bias startup, internal softstart, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V, and output voltage is adjustable from 0.6 V to 0.84 × VIN. The TPS53310 is available in the 3 mm × 3 mm, 16-pin VQFN package (Green RoHs compliant and Pb free) and operates between -40°C and 85°C.

Applications

• 5-V Step-Down Rail
• 3.3-V Step-Down Rail

Key features

• >95% Maximum Efficiency
• Continuous 3-A Output Current
• Hiccup Overcurrent Protection
• Supports All MLCC Output Capacitor
• SmoothPWM™ Auto-Skip Eco-mode™ for Light Load Efficiency
• Voltage Mode Control
• Supports Master-Slave Interleaved Operation
• Synchronization up to ±20% of Nominal Frequency
• Conversion Voltage Range Between 2.9 V and 6 V
• Soft-Stop Output Discharge During Disable
• Adjustable Output Voltage Ranging Between 0.6 V and 0.84 × VIN
• Undervoltage, Overvoltage and Overtemperature Protection
• Small 3 mm × 3 mm, 16-Pin VQFN Package
• Open-Drain Power Good Indication
• Internal Boot Strap Switch
• Low RDS(on), 24 mΩ with 3.3-V Input and 19-mΩ with 5-V Input
• Supports Pre-bias Start Up