ADP3212 データシートの表示（PDF） - ON Semiconductor

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ADP3212

7-Bit, Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller

ON Semiconductor 

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

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