TPS59621

用于 IMVP6.5 CPU/GPU Vcore 嵌入式计算的双相 D-CAP+™ 模式降压控制器

The is a selectable dual or single-phase, fully compliant IMVP-6.5 step down controller with integrated gate drivers. Advanced control features such as D-CAP+ architecture and OSR overshoot reduction provide fast transient response, and lowest output capacitance. The TPS59621 also supports single-phase operation for light loads. The full complement of IMVP-6.5 I/O is integrated into the TPS59621, including VR_TT, DPRSLPVR, PSI and output current monitoring IMON. PSI is used to control the number of active phases. Transitioning into and out of dual-phase mode is exceptionally smooth.

Adjustable control of VCORE slew rate and voltage positioning round out the IMVP-6.5 features. In addition, the TPS59621 includes two high-current MOSFET gate drivers to drive high- and low-side N-channel MOSFETs with exceptionally high speed and low switching loss. The TPS59621 is packaged in a space saving, thermally enhanced 40-pin QFN and is rated to operate from –40°C to 105°C.

.

Selectable Dual-or Single-Phase

.

Selectable CPU or GPU Mode

.

Minimum External Parts Count

.

Full IMVP-6.5 Feature Set, Including VR_TT and

Output Current Monitor IMON

.

±8 mV VCORE Accuracy Over Line/Load/Temp

.

7-Bit DAC

.

Optimized Efficiency at Light and Heavy Loads

.

Patented Output Overshoot Reduction OSR

Reduces Output Capacitance

.

Accurate, Adjustable Voltage Positioning

.

Selectable 200/300/400/500 kHz Frequency

.

Pat. Pending AutoBalance Phase Balancing

.

Selectable 8-Level Current Limit

.

3-V to 28-V Conversion Voltage Range

.

Fast MOSFET Driver w/Integrated Boost Diode

.

Integrated Overvoltage Protection OVP

.

Small 6 × 6, 40-Pin QFN PowerPAD™ Package

.

APPLICA ONS

.

IMVP-6.5 Dual-Phase CPU and GPU VCORE

Embedded Computing Applications

D-CAP+, PowerPAD, D-CAP+ are trademarks of Texas Instruments.