TPS51211 Series

4.5-V to 28-V, synchronous buck controller for notebook power

Catalog

4.5-V to 28-V, synchronous buck controller for notebook power

Part	Applications	Supplier Device Package	Voltage - Output [Max]	Voltage - Output [Min]	Voltage - Input [Max]	Voltage - Input [Min]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Number of Outputs
Texas Instruments TPS51211DSCT	Controller Notebook Power System	10-WSON (3x3)	2.6 V	0.7 V	28 V	3 V	Surface Mount	85 °C	-40 °C	10-WFDFN Exposed Pad	1

Catalog

4.5-V to 28-V, synchronous buck controller for notebook power

Key Features

• Wide Input Voltage Range: 3 V to 28 VOutput Voltage Range: 0.7 V to 2.6 VWide Output Load Range: 0 to 20 A+Built-In 0.5% 0.7 V Reference290-kHz, Adaptive On-Time D-CAP™ MODE Control4700 ppm/°C RDS(on)Current SensingInternal 1-ms Voltage Servo Soft-StartPre-Charged Start-Up CapabilityBuilt-In Output DischargePower Good OutputIntegrated Boost SwitchBuilt-In OVP/UVP/OCPThermal Shutdown (Non-latch)SON-10 (DSC) PackageWide Input Voltage Range: 3 V to 28 VOutput Voltage Range: 0.7 V to 2.6 VWide Output Load Range: 0 to 20 A+Built-In 0.5% 0.7 V Reference290-kHz, Adaptive On-Time D-CAP™ MODE Control4700 ppm/°C RDS(on)Current SensingInternal 1-ms Voltage Servo Soft-StartPre-Charged Start-Up CapabilityBuilt-In Output DischargePower Good OutputIntegrated Boost SwitchBuilt-In OVP/UVP/OCPThermal Shutdown (Non-latch)SON-10 (DSC) Package

Description

The TPS51211 is a small-sized single buck controller with adaptive on-time D-CAP™ Mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on)current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51211 is available in a 10-pin SON package specified from –40°C to 85°C. The TPS51211 is a small-sized single buck controller with adaptive on-time D-CAP™ Mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on)current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51211 is available in a 10-pin SON package specified from –40°C to 85°C.