NCP3218GMNR2G Datasheet, PDF (1/35 Pages) ON Semiconductor – 7-Bit, Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller

ADP3212, NCP3218,
NCP3218G
7-Bit, Programmable,
3-Phase, Mobile CPU
Synchronous Buck Controller
The APD3212/NCP3218/NCP3218G is a highly efficient,
multi−phase, synchronous buck switching regulator controller. With
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its integrated drivers, the APD3212/NCP3218/NCP3218G is
optimized for converting the notebook battery voltage into the core
supply voltage required by high performance Intel processors. An
internal 7−bit DAC is used to read a VID code directly from the
processor and to set the CPU core voltage to a value within the range
1 48
1 48
of 0.3 V to 1.5 V. The APD3212/NCP3218/NCP3218G is
programmable for 1−, 2−, or 3−phase operation. The output signals
QFN48
CASE 485AJ
QFN48
CASE 485BA
ensure interleaved 2− or 3−phase operation.
The APD3212/NCP3218/NCP3218G uses a multimode architecture
run at a programmable switching frequency and optimized for
efficiency depending on the output current requirement. The
APD3212/NCP3218/NCP3218G switches between single− and
multi−phase operation to maximize efficiency with all load conditions.
The chip includes a programmable load line slope function to adjust the
output voltage as a function of the load current so that the core voltage is
always optimally positioned for a load transient. The APD3212/
MARKING DIAGRAM
1
xxx = Specific Device Code
(ADP3212 or NCP3218/G)
xxP321x _{A = Assembly Location}
AWLYYWWG _{WL = Wafer Lot}
YY = Year
WW = Work Week
G = Pb−Free Package
NCP3218/NCP3218G also provides accurate and reliable short−circuit
protection, adjustable current limiting, and a delayed power−good
ORDERING INFORMATION
output. The IC supports On−The−Fly (OTF) output voltage changes
requested by the CPU.
See detailed ordering and shipping information in the package
dimensions section on page 33 of this data sheet.
The APD3212/NCP3218/NCP3218G are specified over
the extended commercial temperature range of −40°C to
100°C. The ADP3212 is available in a 48−lead QFN 7x7mm
0.5mm pitch package. The NCP3218/NCP3218G is
available in a 48−lead QFN 6x6mm 0.4mm pitch package.
ADP3212/NCP3218 has 1.1 V Vboot Voltage, while
NCP3218G has 987.5 mV Vboot Voltage. Except for the
packages and Vboot Voltages, the APD3212/NCP3218/
NCP3218G are identical. APD3212/NCP3218/NCP3218G
• Active Current Balancing Between Output Phases
• Independent Current Limit and Load Line Setting
Inputs for Additional Design Flexibility
• Built−In Power−Good Blanking Supports Voltage
Identification (VID) On−The−Fly (OTF) Transients
• 7−Bit, Digitally Programmable DAC with 0.3 V to
1.5 V Output
• Short−Circuit Protection with Programmable Latchoff
are Halogen−Free, Pb−Free and RoHS compliant.
Features
• Single−Chip Solution
• Fully Compatible with the Intel^® IMVP−6.5t
Specifications
• Selectable 1−, 2−, or 3−Phase Operation with Up to 1
MHz per Phase Switching Frequency
• Phase 1 and Phase 2 Integrated MOSFET Drivers
• Input Voltage Range of 3.3 V to 22 V
• Guaranteed ±8 mV Worst−Case Differentially Sensed
Delay
• Clock Enable Output Delays the CPU Clock Until the
Core Voltage is Stable
• Output Power or Current Monitor Options
• 48−Lead QFN 7x7mm (ADP3212), 48−Lead QFN
6x6mm (NCP3218/NCP3218G)
• Vboot = 1.1 V (ADP3212/NCP3218)
Vboot = 987.5 mV (NCP3218G)
• These are Pb−Free Devices
• Fully RoHS Compliant
Core Voltage Error Over Temperature
• Automatic Power−Saving Mode Maximizes Efficiency
Applications
• Notebook Power Supplies for Next−Generation Intel
with Light Load During Deeper Sleep Operation
Processors
© Semiconductor Components Industries, LLC, 2012
1
August, 2012 − Rev. 4
Publication Order Number:
ADP3212/D