TPS51219RTER ,High Performance, Single Sync Step-Down Controller with Differential Voltage Feedback 16-WQFN -40 to 85 SLUSAG1B–MARCH 2011–REVISED OCTOBER 2011RECOMMENDED OPERATING CONDITIONSMIN TYP MAX UNITSupply vol ..
TPS51219RTET ,High Performance, Single Sync Step-Down Controller with Differential Voltage Feedback 16-WQFN -40 to 85FEATURES DESCRIPTIONThe TPS51219 is a small-sized single buck controller23• Differential Voltage Fe ..
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TPS51220ARSNT ,Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller 32-QFN -40 to 85FEATURES2• Input Voltage Range: 4.5 V to 32 V • Powergood Output for Each Channel• Output Voltage R ..
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TPS51219RTER-TPS51219RTET
High Performance, Single Sync Step-Down Controller with Differential Voltage Feedback
TPS51219
www.ti.com SLUSAG1B –MARCH 2011–REVISED OCTOBER 2011
High Performance, Single-Synchronous Controller
1FEATURESisa small-sized single buck controller
23• Differential Voltage Feedback with adaptive on-time control.It providesa choiceof•
DC Compensation for Accurate Regulation control modes (D-CAP™ or D-CAP2™)to meeta
Wide Input Voltage Range:3Vto28V wide rangeof system requirements.Itis designed for
tight DC regulation requirements such as the VCCIO•
Output Voltage Range: 0.5Vto 2.0V with application for Intel® notebooks. The performance
Fixed Optionsof 1.05V and 1.00V and flexibilityof the TPS51219 makesit suitable for•
Wide Output Load Range:0Ato20 A+ low output voltage, high current, PC system power
Adaptive On-Time Modulation with Selectable rails and similar point-of-load (POL) power supplies.
Control Architecture and Frequency Differential voltage feedback and the voltage
compensation function combine to provide high–
D-CAP™ Modeat 300 kHz/400 kHz for Fast precision powerto load devices.
Transient Response small package, fixed voltage options and minimal–
D-CAP2™ Modeat 500 kHz/670 kHz for external component count saves cost and space,
Ceramic Output Capacitor whilea dedicated EN pin and pre-set frequency•
4700 ppm/°C, Low-Side RDS(on) Current Sensing selections minimize design effort. The skip-modeat
RSENSE Accurate Current Sense Option light load condition, strong gate drivers, and low-side
