| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 28 |
| Vout (Min) (V) | 0.3 |
| Vout (Max) (V) | 1.5 |
| Iout (Max) (A) | 60 |
| Iq (Typ) (uA) | 2300 |
| Switching frequency (Min) (kHz) | 200 |
| Switching frequency (Max) (kHz) | 500 |
| Features | Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, SVID, UVLO Fixed |
| Regulated outputs (#) | 1 |
| Number of phases | 2+1 |
| Rating | Catalog |
- 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
- APPLICATIONS
- IMVP-6.5 Dual-Phase CPU and GPU VCORE
Embedded Computing Applications
- IMVP-6.5 Dual-Phase CPU and GPU VCORE
D-CAP+, PowerPAD, D-CAP+ are trademarks of Texas Instruments.
The TPS59621 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.
