TPS59650_15 Datasheet, PDF (1/51 Pages) Texas Instruments – Dual-Channel (3-Phase CPU/2-Phase GPU) SVID, D-CAP+™ Step-Down Controller for IMVP-7 VCORE with Two Integrated Drivers

TPS51650, TPS59650
www.ti.com
SLUSAV7 – JANUARY 2012
Dual-Channel (3-Phase CPU/2-Phase GPU) SVID, D-CAP+™ Step-Down Controller for
IMVP-7 V_CORE with Two Integrated Drivers
FEATURES
1
APPLICATIONS
•2 Intel IMVP-7 Serial VID (SVID) Compliant
• Supports CPU and GPU Outputs
• CPU Channel One-Phase, Two-Phase, or
Three-Phase
• One-Phase or Two-Phase GPU Channel
• Full IMVP-7 Mobile Feature Set Including
Digital Current Monitor
• 8-Bit DAC with 0.250-V to 1.52-V Output Range
• Optimized Efficiency at Light and Heavy Loads
• V_CORE Overshoot Reduction (OSR)
• V_CORE Undershoot Reduction (USR)
• Accurate, Adjustable Voltage Positioning
• 8 Independent Frequency Selections per
Channel (CPU/GPU)
• Patent Pending AutoBalance™ Phase
Balancing
• Selectable 8-Level Current Limit
• 3-V to 28-V Conversion Voltage Range
• Two Integrated Fast FET Drivers w/Integrated
Boost FET
• Selectable Address (TPS59650 only)
• Small 6 × 6 , 48-Pin, QFN, PowerPAD™
Package
• IMVP-7 V_CORE Applications for Adapter,
Battery, NVDC or 3-V, 5-V, and 12-V Rails
DESCRIPTION
The TPS51650 and TPS59650 are dual-channel, fully
SVID compliant IMVP-7 step-down controllers with
two integrated gate drivers. Advanced control
features such as D-CAP™+ architecture with
overlapping pulse support (undershoot reduction,
USR) and overshoot reduction (OSR) provide fast
transient response, lowest output capacitance and
high efficiency. All of these controllers also support
single-phase operation for light loads. The full
compliment of IMVP-7 I/O is integrated into the
controllers including dual PGOOD signals, ALERT
and VR_HOT. Adjustable control of V_CORE slew rate
and voltage positioning round out the IMVP-7
features. In addition, the controllers' CPU channel
includes two high-current FET gate drivers to drive
high-side and low-side N-channel FETs with
exceptionally high speed and low switching loss. The
TPS51601 driver is used for the third phase of the
CPU and the two phases of the GPU channel.
These controllers are packaged in a space-saving,
thermally enhanced 48-pin QFN and are rated to
operate from –10°C to 105°C.
SIMPLIFIED APPLICATION
Processor
3-phase CPU
Controller
IMVP-7
SVID Interface
2-phase GPU
Controller
Internal
FET Driver
Internal
FET Driver
TPS51650
TPS51601
FET Driver
TPS51601
FET Driver
TPS51601
FET Driver
CPU Power Stage
GPU Power Stage
VCC_CPU
VCC_GFX
UDG-12003
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
D-CAP+, PowerPAD, D-CAP are trademarks of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated