TPS51633 Series

3-Phase, D-CAP+™ step-down controller for VR12.6/VR12.6+ VCPU

Catalog

3-Phase, D-CAP+™ step-down controller for VR12.6/VR12.6+ VCPU

Part	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input [Max]	Voltage - Input [Min]	Mounting Type	Voltage - Output [Max]	Voltage - Output [Min]	Package / Case	Number of Outputs	Applications	Supplier Device Package
Texas Instruments TPS51633RSMR	-40 °C	105 ░C	28 V	4.5 V	Surface Mount	2.5 V	0.5 V	32-VFQFN Exposed Pad	1	Controller Intel VR12.5 VR12.6	32-VQFN (4x4)

Catalog

3-Phase, D-CAP+™ step-down controller for VR12.6/VR12.6+ VCPU

Key Features

• IntelVR12.6 PWM Specificationserial VID (SVID) compliant1-, 2-, or 3-phase operationFull VR12.6 mobile feature set including digital current monitor, PS3 and PS4 operation8-Bit DAC with 0.50-V to 2.30-V output rangeOptimized efficiency at light and heavy loads8 independent levels of overshoot reduction (OSR) and undershoot reduction (USR)Driverless configuration for efficient high-frequency switchingSupports discrete, Power Block, Power Stage or DrMOS MOSFET implementationsAccurate, adjustable voltage positioning300-kHz to 800-kHz frequency selectionsPatented AutoBalance Phase BalancingSelectable 8-level current limit4.5-V to 28-V conversion voltage rangeSmall, 4 × 4, 32-Pin, QFN PowerPAD™ integrated circuit packageIntelVR12.6 PWM Specificationserial VID (SVID) compliant1-, 2-, or 3-phase operationFull VR12.6 mobile feature set including digital current monitor, PS3 and PS4 operation8-Bit DAC with 0.50-V to 2.30-V output rangeOptimized efficiency at light and heavy loads8 independent levels of overshoot reduction (OSR) and undershoot reduction (USR)Driverless configuration for efficient high-frequency switchingSupports discrete, Power Block, Power Stage or DrMOS MOSFET implementationsAccurate, adjustable voltage positioning300-kHz to 800-kHz frequency selectionsPatented AutoBalance Phase BalancingSelectable 8-level current limit4.5-V to 28-V conversion voltage rangeSmall, 4 × 4, 32-Pin, QFN PowerPAD™ integrated circuit package

Description

The TPS51633 device is a driverless step-down controller that is fully compliant with the SVID communications protocol, meeting the Intel VR12.6 specification. Advanced control features such as D-CAP+ architecture with overlapping pulse support undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance and high efficiency. The TPS51633 device also supports single-phase operation in CCM or DCM for light-load efficiency. The TPS51633 device integrates the full complement of VR12.6 I/O features including VR_READY (PGOOD),ALERTandVR_HOT. The SVID interface address allows programming from 0 to 7. In PS4, the quiescent power consumption of the controller is typically 0.25 mW. Adjustable control of VCPU slew rate and voltage positioning round out the VR12.6 features. Paired with the new TPS51604 FET gate driver, the solution delivers exceptionally high speed and low switching loss. The TPS51633 device works with selected TI Power Stage™ products for optimum efficiency as well as DrMOS products. The TPS51633 device is available in space saving, thermally enhanced 32-pin QFN package that operates from –40°C to 105°C. The TPS51633 device is a driverless step-down controller that is fully compliant with the SVID communications protocol, meeting the Intel VR12.6 specification. Advanced control features such as D-CAP+ architecture with overlapping pulse support undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance and high efficiency. The TPS51633 device also supports single-phase operation in CCM or DCM for light-load efficiency. The TPS51633 device integrates the full complement of VR12.6 I/O features including VR_READY (PGOOD),ALERTandVR_HOT. The SVID interface address allows programming from 0 to 7. In PS4, the quiescent power consumption of the controller is typically 0.25 mW. Adjustable control of VCPU slew rate and voltage positioning round out the VR12.6 features. Paired with the new TPS51604 FET gate driver, the solution delivers exceptionally high speed and low switching loss. The TPS51633 device works with selected TI Power Stage™ products for optimum efficiency as well as DrMOS products. The TPS51633 device is available in space saving, thermally enhanced 32-pin QFN package that operates from –40°C to 105°C.