Datasheet > ADP3208AJCPZ-RL

ADP3208AJCPZ-RL

更新时间： 2024-12-02 01:20:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
38页	784K
描述
7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller

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ADP3208AJCPZ-RL 数据手册

7-Bit, Programmable, Dual-Phase, Mobile,

CPU, Synchronous Buck Controller

ADP3208A

General Description

FEATURES

The ADP3208 is a highly efficient, multiphase, synchronous

Single-chip solution

Fully compatible with the Intel® IMVP-6+™ specifications

Integrated MOSFET drivers

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 over temperature

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

buck switching regulator controller. With its integrated drivers,

the ADP3208 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.

The ADP3208 uses a multimode architecture run at a program-

mable switching frequency and optimized for efficiency depending

on the output current requirement. The ADP3208 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 ADP3208 also

provides accurate and reliable short-circuit protection, adjustable

current limiting, and a delayed power good output. The IC

supports on-the-fly output voltage changes requested by the

CPU.

Built-in power good blanking supports

voltage identification (VID) on-the-fly transients

7-bit, digitally programmable DAC with 0.3 V to 1.5 V output

Short-circuit protection with programmable latch-off delay

Clock enable output delays the CPU clock until the core

voltage is stable

Output power or current monitor options

48-lead LFCSP

ADP3208A version has 1.0V Boot voltage

APPLICATIONS

Notebook power supplies for next-generation Intel

processors

ADP3208 is specified over the extended commercial

temperature range of 0°C to 100°C and is available in a 48-lead

LFCSP

FUNCTIONAL BLOCK DIAGRAM

RAMP VRPM RPM

OSCILLATOR

PWM

BST2

DRVH2

SW2

PVCC2

DRVL2

PGND2

DRV2

RAMP

GENER-

ATOR

PWM

LATCH

PHASE

CMPS

OD2

CONTROL

BST1

DRVH1

SW1

PVCC1

DRVL1

PGND1

PSI

DRV1

SWITCH

AMPS

OD1B

OD1A

VREF

VID6, VID5,

VID4, VID3,

VID2, VID1,

VID0

–

REFER-

ENCE

SELECT

VDAC

VID

DAC

–

COMP

LLINE

CSCOMP

CSSUM

CSREF

ERR AMP

–

FBRTN

VARFREQ

DPRSTP

DPRSLP

PWRGD

PGDELAY

CLKEN

CSAMP

CLIM

CMP

–

CLREF

CLTHSEL

OVTH

–

HOUSE-

KEEPING

–

PSI

UVTH

CLIM

VCC

REFTH

REF

VREF

BIAS

VRTT

TTSNS

VCC

UVLO

BIAS

–

GND

CSAVG

–

PMON

PWM

ADP3208

FBRTN

PMON PMONFS

Figure 1.

January 2008 – Rev. 2

Publication Order Number:

ADP3208A/D

12 3 4 5 6 7...38

中文翻译

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与ADP3208AJCPZ-RL相关器件

型号	品牌	获取价格	描述	数据表
ADP3208C	ONSEMI	获取价格	7-Bit,Programmable,Dual- Phase,Mobile,CPU,Synchronous Buck Controller
ADP3208CJCPZ-RL	ONSEMI	获取价格	7-Bit,Programmable,Dual- Phase,Mobile,CPU,Synchronous Buck Controller
ADP3208D	ONSEMI	获取价格	7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller
ADP3208DJCPZ-RL	ONSEMI	获取价格	7-Bit, Programmable, Dual-Phase, Mobile, CPU, Synchronous Buck Controller
ADP3209CJCPZ-RL	ONSEMI	获取价格	5-Bit, Programmable, Single-Phase, Synchronous Buck Controller
ADP3209DJCPZ-RL	ROCHESTER	获取价格	SWITCHING CONTROLLER, 20000 kHz SWITCHING FREQ-MAX, QCC32, 5 X 5 MM, 0.50 MM PITCH, LEAD F
ADP3209DJCPZ-RL	ONSEMI	获取价格	Synchronous Buck Controller, 5-Bit, Programmable, Single-Phase
ADP3209JCPZ-RL	ONSEMI	获取价格	5-Bit, Programmable, Single-Phase, Synchronous Buck Controller
ADP320ACPZ-110-R7	ADI	获取价格	Triple, 200 mA, Low Noise, High PSRR Voltage Regulator
ADP320ACPZ331815R7	ADI	获取价格	Triple, 200 mA, Low Noise, High PSRR Voltage Regulator

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