TPS51633 Datasheet | Texas Instruments

Features - Intel® VR12.6 PWM Specification serial VID (SVID) pliant - 1-, 2-, or 3-phase operation - Full VR12.6 mobile feature set including digital current monitor, PS3 and PS4 operation - 8-Bit DAC with 0.50-V to 2.30-V output range - Optimized efficiency at light and heavy loads - 8 independent levels of overshoot reduction (OSR) and undershoot reduction (USR) - Driverless configuration for efficient high-frequency switching - Supports discrete, Power Block, Power Stage or Dr MOS MOSFET implementations - Accurate, adjustable voltage positioning - 300-k Hz to 800-k Hz frequency selections - Patented Auto Balance Phase Balancing - Selectable 8-level current limit - 4.5-V to 28-V conversion voltage range - Small, 4 × 4, 32-Pin, QFN Power PAD™ integrated circuit package 2 Applications - Adapter - Battery - NVDC - 5-V or 12-V Rails 3 Description The TPS51633 device is a driverless step-down controller that is fully pliant with the SVID munications protocol, meeting the Intel VR12.6 specification. Advanced control features such as DCAP+ 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 plement of VR12.6 I/O features including VR_READY (PGOOD), ALERT and VR_HOT. The SVID interface address allows programming from 0 to 7. In PS4, the quiescent power consumption of the controller is typically 0.25 m W. 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 Dr MOS products. The TPS51633 device is available in space saving, thermally enhanced 32-pin QFN package that...