TPS53353DQPR 热卖现货
日期:2018-1-24High-Efficiency 20-A Synchronous Buck Converter with Eco-mode8482;Check for Samples: TPS533531FEATURES • Open-Drain Power Good Indication2• Conversion Input Voltage Range: 3 V to 15 V • Incorporates NexFET8482; Power BlockTechnology • VDD Input Voltage Range: 4.5 V to 25 V• 92% efficiency from 12 V to 1.5 V at 20 A• 22-pin QFN Package with PowerPAD8482;• Output Voltage Range: 0.6 V to 5.5 V APPLICATIONS• 5-V LDO Output• Server/Storage• Supports Single Rail Input• Workstations and Desktops• Integrated Power MOSFETs with 20-A of• Telecommunications Infrastructure Continuous Output Current• Auto-Skip Eco-mode8482; for Light-Load DESCRIPTION Efficiency TPS53353 is a D-CAP8482; mode, 20-A synchronous• <10 μA Shut Down Current switcher with integrated MOSFETs. It is designed for• D-CAP8482; Mode with Fast Transient Response ease of use, low external component count, andspace-conscious power systems. • Selectable Switching Frequency from 250 kHzto 1 MHz with External Resistor This device features 5.5-mΩ / 2.2-mΩ integrated• Selectable Auto-Skip or PWM-Only Operation MOSFETs, accurate 1%, 0.6-V reference, andintegrated boost switch. A sample of competitive• Built-in 1% 0.6-V Reference. features include: 3-V to 15-V wide conversion input• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable voltage range, very low external component count,Internal Voltage Servo Soft-Start D-CAP8482; mode control for super fast transient,auto-skip mode operation, internal soft-start control, • Integrated Boost Switchselectable frequency, and no need for compensation.• Pre-Charged Start-up CapabilityThe conversion input voltage ranges from 3 V to • Adjustable Overcurrent Limit with Thermal15 V, the supply voltage range is from 4.5 V to 25 V, Compensation and the output voltage range is from 0.6 V to 5.5 V.• Overvoltage, Undervoltage, UVLO andOver-Temperature Protection The device is available in 5 mm x 6 mm, 22-pin QFNpackage and is specified from –40°C to 85°C.• Supports All Ceramic Output Capacitors