The TPS53316 device provides a fully integrated 3.3-V or 5-V input, synchronous buck converter with 16 total components, in 200 mm2 of PCB area. Due to low RDS(on) and TI proprietary SmoothPWM skip mode of operation, it enables 96% peak efficiency, and over 90% efficiency at load as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 5-A solution.
●TPS53316 features 750-kHz, 1.1-MHz, and 2-MHz switching frequency selections, prebias start-up, selectable 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 input voltages from 2.9 V to 6 V, and no extra bias voltage is needed. The output voltage is adjustable from 0.6 V up to 0.8 × VIN.
●TPS53316 is available in the 3 mm × 3 mm, 16-pin QFN package (Green RoHs compliant and Pb free) and is specified from –40°C to 85°C.
● 96% Maximum Efficiency
● Continuous 5-A Output Current Capability
● Support all MLCC Output Capacitor
● SmoothPWM™ Auto-Skip Eco-Mode™ for Light-Load Efficiency
● Voltage Mode Control
● Single Rail Input
● Selectable Frequency
● Selectable OCP Threshold
● Selectable Soft-Start Time
● 2.9-V to 6-V Input Voltage Range
● Adjustable Output Voltage Ranging from 0.6 V up to 0.8 × VIN
● Soft-Stop Output Discharge During Disable
● Overcurrent, Overvoltage, and Overtemperature Protection
● Open-Drain Power Good Indication
● Internal Bootstrap Switch
● Supports Prebias Start-Up Functionality
● Small 3 mm × 3 mm, 16-Pin, QFN Package
● Low RDS(on), 22-mΩ With 3.3-V Input and 18-mΩ With 5-V Input
