ADP3208DJCPZ-RL ON Semiconductor, ADP3208DJCPZ-RL Datasheet

ADP3208DJCPZ-RL

Manufacturer Part Number

ADP3208DJCPZ-RL

Description

IC CTLR BUCK 7BIT 2PHASE 48LFCSP

Manufacturer

ON Semiconductor

Datasheet

1.ADP3208DJCPZ-RL.pdf (37 pages)

Specifications of ADP3208DJCPZ-RL

Applications

Controller, Power Supplies for Next-Generation Intel Processors

Voltage - Input

3.3 ~ 22 V

Number Of Outputs

Voltage - Output

0.01 ~ 1.5 V

Operating Temperature

-10°C ~ 100°C

Mounting Type

Surface Mount

Package / Case

48-LFCSP

Output Voltage

10 mV

Output Current

40 A

Input Voltage

19 V

Supply Current

6 mA

Switching Frequency

300 KHz

Mounting Style

SMD/SMT

Maximum Operating Temperature

+ 100 C

Minimum Operating Temperature

- 10 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Download datasheet (818Kb)

ADP3208D

7-Bit, Programmable,

Dual-Phase, Mobile, CPU,

Synchronous Buck

Controller

switching regulator controller. With its integrated drivers, the

ADP3208D 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 of 0.3 V to 1.5 V. The phase relationship of the output signals

ensures interleaved 2−phase operation.

programmable switching frequency and optimized for efficiency

depending on the output current requirement. The ADP3208D

switches between single− and dual−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 ADP3208D also provides accurate and reliable

short−circuit protection, adjustable current limiting, and a delayed

power−good output. The IC supports On−The−Fly (OTF) output

voltage changes requested by the CPU.

temperature range of −10°C to 100°C and is available in a 48−lead

LFCSP.

Features

•

February, 2010 − Rev. 0

The ADP3208D is a highly efficient, multiphase, synchronous buck

The ADP3208D uses a multi−mode architecture run at a

The ADP3208D is specified over the extended commercial

Single−Chip Solution

Fully Compatible with the Intel

Specifications

Integrated MOSFET Drivers

Input Voltage Range of 3.3 V to 22 V

Selectable 1− or 2−Phase Operation with Up to 1 MHz

per Phase Switching Frequency

Guaranteed ±8 mV Worst−Case Differentially Sensed

Core Voltage Error Overtemperature

Automatic Power−Saving Mode Maximizes Efficiency

with Light Load During Deeper Sleep Operation

Soft Transient Control Reduces Inrush Current and

Audio Noise

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) OTF Transients

7−Bit, Digitally Programmable DAC with 0.3 V to

1.5 V Output

IMVP−6+t

•

Applications

•

Short−Circuit Protection with Latchoff Delay

Clock Enable Output Delays the CPU Clock Until the

Core Voltage is Stable

Output Load Current Monitor

This is a Pb−Free Device

Notebook Power Supplies for Next Generation

Intel

Processors

See detailed ordering and shipping information in the package

dimensions section on page 36 of this data sheet.

ORDERING INFORMATION

YYWW = Date Code

MARKING DIAGRAM

http://onsemi.com

AWLYYWWG

= Assembly Location

= Wafer Lot

= Pb−Free Package

ADP3208D

Publication Order Number:

CASE 932AD

LFCSP48

ADP3208D/D

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ADP3208DJCPZ-RL Summary of contents

Page 1

ADP3208D 7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller The ADP3208D is a highly efficient, multiphase, synchronous buck switching regulator controller. With its integrated drivers, the ADP3208D is optimized for converting the notebook battery voltage into the core supply voltage ...

Page 2

COMP FB LLINE PSI PSI TTSNS VRTT PWRGD CLKEN FBRTN ABSOLUTE MAXIMUM RATINGS Parameter VCC, PVCC1, PVCC2 FBRTN, PGND1, PGND2 BST1, BST2 DC t < 200 ns BST1 to SW1, BST2 to SW2 SW1, SW2 DC t < 200 ns ...

Page 3

CODE PWRGD NC CLKEN# FB FBRTN ADP3208D COMP VARFREQ VRTT TTSNS 100 nF Figure 2. Closed−Loop Output Voltage Accuracy 5 Δ V ...

Page 4

PIN FUNCTION DESCRIPTIONS Pin No Mnemonic 1 EN Enable Input. Driving this pin low shuts down the chip, disables the driver outputs, pulls PWRGD and VRTT low, and pulls CLKEN high. 2 PWRGD Power−Good Output. Open−drain output. A low logic ...

Page 5

Pin No Mnemonic 31 PGND1 Low−Side Driver Power Ground for Phase 1. 32 DRVL1 Low−Side Gate Drive Output for Phase 1. 33 PVCC1 Power Supply Input/Output of Low−Side Gate Driver for Phase 1. 34 SW1 Current Balance Input for Phase ...