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TPS53219RGTT
4.5V to 28V Input Synchronous Step Down Controller with EcoMode
TPS53219
www.ti.com SLUSAA8 –NOVEMBER 2010
Wide Input Voltage, Eco-mode™, Single Synchronous Step-Down Controller
Checkfor Samples: TPS53219
1FEATURES APPLICATIONS Point-of-Load Systems Wide Input Voltage Range: 4.5Vto28V Storage Computer• Output Voltage Range: 0.6Vto 5.5V Server Computer• Wide Output Load Range:0Ato>20A Multi-Function Printer• Built-In 0.6-V Reference Embedded Computing• Built-In LDO Linear Voltage Regulator Auto-Skip Eco-mode™ for Light-Load DESCRIPTIONEfficiencyThe TPS53219is small-sized single buck controller
• D-CAP™ Mode with 100-ns Load-Step with adaptive on-time D-CAP™ mode control. The
Response deviceis suitable for low output voltage, high current,
• Adaptive On-Time Control Architecture with8 PC system power rail and similar point-of-load (POL)
Selectable Frequency Settings power suppliesin digital consumer products. The
small package and minimal pin-count save space on
• 4700ppm/°C RDS(on) Current Sensing the PCB, while the dedicated EN pin and pre-set
• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable frequency selections simplify the power supply
Internal Voltage Servo Soft-Start design. The skip-modeat light load conditions, strong
Pre-Charged Start-up CapabilityNot Recommended for New Designs
