Texas Instruments TPS53627 D-CAP+™ Step-Down Controller
Texas Instruments TPS53627 D-CAP+™ Step-Down Controller is a driverless, VR13 SVID compliant, synchronous buck controller. This device is specifically designed for Intel VR13 CPU VCore and DDR memory. Advanced control features such as D-CAP+™ architecture with overlapping pulse support undershoot reduction (USR) and overshoot reduction (OSR). This feature provides a fast transient response, lowest output capacitance and high efficiency. The TPS53627 also supports single-phase operation in CCM and DCM operation for light-load efficiency boost. The device integrates a full set of VR13 I/O features including VR_READY (PGOOD), ALERT and VR_HOT. The SVID interface address allows programming from 00h to 07h. Adjustable control of VOUT slew rate can be programmed as high as 20mV/uS. When paired with the TI NexFET™ Power Stage, this total solution delivers exceptionally high-speed and low switching loss.
Features
- Intel® VR13 Serial VID (SVID) compliant
- One or two-phase operation
- Supports both droop and non-droop applications
- 8-Bit DAC with 10mV step
- 4.5V to 28V conversion voltage range
- 0.5V to 2.3V output range
- Optimized efficiency at light and heavy loads
- Eight independent levels of Overshoot Reduction (OSR) and Undershoot Reduction (USR)
- Driverless configuration for efficient high-frequency switching
- Supports discrete, power block, Power Stage™, or DrMOS MOSFET implementations
- Accurate, adjustable voltage positioning
- 300kHz to 1MHz frequency selections
- Patented AutoBalance™ phase balancing
- Programmable ON-pulse extension for load transient boost
- Programmable auto DCM and CCM operation
- A selectable 8-level current limit
- Small, 4mm×4mm, 32-pin, VQFN PowerPad™ package
Applications
- VDDQ for DDR memory
- SoC processor VCORE power
Simplified Schematic
Publié le: 2017-04-26
| Mis à jour le: 2022-04-27