TPS51621 Dual Phase, D-CAP+™Mode Step-Down Controller for IMVP6.5 CPU/GPU Vcore | TI.com

TPS51621
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Dual Phase, D-CAP+™Mode Step-Down Controller for IMVP6.5 CPU/GPU Vcore

Dual Phase, D-CAP+™Mode Step-Down Controller for IMVP6.5 CPU/GPU Vcore - TPS51621
Datasheet
 

Description

The TPS51621 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 TPS51621 also supports single-phase operation for light loads. The full complement of IMVP-6.5 I/O is integrated into the TPS51621, 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 TPS51621 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 TPS51621 is packaged in a space saving, thermally enhanced 40-pin QFN and is rated to operate from -10°C to 105°C.

Features

  • 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 VCORE Applications for Adapter, Battery, NVDC or 3 V/5 V/12 V Rails

Parametrics

Compare all products in Buck controllers (external switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Number of Phases Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Control mode
TPS51621 Order now 3     28     0.3     1.5     60     1     2     200     500     2.3     PVID
Power Good    
50     -10 to 105     Catalog     VQFN | 40     Controller     D-CAP+    
TPS51610 Samples not available 3     28     0.3     1.5     60     1     1     200     500     1.8     PVID
Power Good    
50     -10 to 105
-40 to 105    
Catalog     VQFN | 32     Controller     D-CAP+    
TPS51611 Samples not available 3     28     0.3     1.5     60     1     1+1     200     500     1.8     PVID
Power Good    
50     -10 to 105     Catalog     VQFN | 32     Controller     D-CAP+    
TPS51620 Samples not available 3     28     0.3     1.5     60     1     2     200     500     2.5     PVID
Power Good    
50     -10 to 100     Catalog     VQFN | 40     Controller     D-CAP+