Datasheet > LX1664ACN-TR

LX1664ACN-TR

更新时间： 2024-11-11 20:10:43

品牌	Logo	应用领域
美高森美 - MICROSEMI		开关
页数	文件大小	规格书
17页	873K
描述
Switching Controller

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中文翻译

获取价格

技术参数
数据手册

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LX1664ACN-TR 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.73	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
峰值回流温度（摄氏度）：	NOT SPECIFIED	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

LX1664ACN-TR 数据手册

Not Recommended For New Design

LX1664 / 64A, LX1665 / 65A

UAL

OUTPUT PWM CONTROLLER WITH 5-BIT DAC

R O D U C T I O N A T A H E E T

H E

N F I N I T E

O W E R O F

I N N O V A T I O N

KEY FEATURES

DESCRIPTION

The LX1664/64A and LX1665/65A are

a DIP switch on the motherboard, or

monolithic switching regulator controller hardwired into the processor’s package (as

5-bit Programmable Output For

CPU Core Supply

Adjustable Linear Regulator

Driver Output

No Sense Resistor Required For

Short-Circuit Current Limiting

Designed To Drive Either

Synchronous Or Non-

in the case of Pentium^®Pro and Pentium II

processors). The 5-bit code adjusts the

output voltage between 1.30 and 2.05V in

50mV increments and between 2.0 and 3.5V

in 100mV increments, conforming to the

Intel Corporation specification. The device

can drive dual MOSFET’s resulting in

typical efficiencies of 85 - 90% even with

IC’s designed to provide a low cost, high

performance adjustable power supply for

advanced microprocessors and other

applications requiring a very fast transient

response and a high degree of accuracy.

Short-circuit Current Limiting without

Expensive Current Sense Resistors.

Current-sensing mechanism can use PCB

Synchronous Output Stages

Soft-Start Capability

Modulated, Constant Off-Time

Architecture For Fast Transient

Response And Simple System

Design

Available Over-Voltage

Protection (OVP) Crowbar Driver

And Power Good Flag (LX1665

only)

trace resistance or the parasitic resistance of loads in excess of 10 amperes. For cost

the main inductor. The LX1664A and

LX1665A have reduced current sense

comparator threshold for optimum

performance using a sense resistor. For

applications requiring a high degree of

sensitive applications, the bottom MOSFET

can be replaced with a Schottky diode (non-

synchronous operation).

Linear Regulator Driver. The LX1664/ 65

family of devices have a secondary regulator

accuracy, a conventional sense resistor can be output. This can drive a MOSFET or bipolar

APPLICATIONS

used to sense current.

transistor as a pass element to construct a

low-cost adjustable linear regulator suitable

for powering a 1.5V GTL+ bus or 2.5V

clock supply.

Socket 7 (Pentium Class)

Microprocessor Supplies

(including Intel Pentium

Processor, AMD-K6TM And

Cyrix® 6x86TM, Gx86TM and

M2TM Processors)

Pentium II and Deschutes

Processor & L2-Cache Supplies

Voltage Regulator Modules

Programmable Synchronous Rectifier

Driver for CPU Core. The main output is

adjustable from 1.3V to 3.5V using a 5-bit

code. The IC can read a VID signal set by

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

PRODUCT HIGHLIGHT

LX1665 in a Pentium II Single-Chip Power Supply Solution

F₁20A

12V

1µH

C₃

0.1µF

6.3V

C₅

1µF

LX1665

1500µF x3

C₂

Q₁

IRL3102

V_C1

TDRV

GND

BDRV

V_CC

Supply Voltage

for CPU Core

0.0025

INV

V_OUT

V_{CC_CORE}

VID0

VID1

VID2

VID3

2.5µH

Q₂

IRL3303

C₁

VID0

VID1

VID2

VID3

VID4

6.3V, 1500µF x 3**

** Three capacitors for Pentium

Four capacitors for Pentium II

C₉

330µF

C_T

C₈

680pF

Q₄

IRLZ44

Supply Voltage

For I/ O Chipset or GTL+ Bus

VID4

DRV

PWRGD

C₇

330µF

18-pin

Wide-Body SOIC

PWRGD

PACKAGE ORDER INFO

Plastic DIP

16-Pin

Plastic DIP

Plastic SOIC

16-Pin

Plastic SOIC Wide

18-Pin

RoHS Compliant / Pb-free

Transition DC: 0516

18-Pin

RoHS Compliant / Pb-free

Transition DC: 0503

T_A(°C)

RoHS Compliant / Pb-free

Transition DC: 0440

LX1664CN

LX1664ACN

LX1665CN

LX1665ACN

LX1664CD

LX1664ACD

LX1665CDW

LX1665ACDW

0 to 70

Note: Available in Tape & Reel. Append the letters ‘TR’ to the part number. (i.e. LX1664CD-TR)

I N

I N I T Y

I C R O E L E C T R O N I C S

I N C .

Rev. 1.3a,2005-03-17

11861 WESTERN

VENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570

12 3 4 5 6 7...17

中文翻译

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与LX1664ACN-TR相关器件

型号	品牌	获取价格	描述	数据表
LX1664CD	MICROSEMI	获取价格	DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1664CDT	MICROSEMI	获取价格	Switching Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, BIPolar, PDSO16, PLAS
LX1664CD-TR	MICROSEMI	获取价格	Switching Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, PDSO16, ROHS COMPLIAN
LX1664CN	MICROSEMI	获取价格	DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1664CN-TR	MICROSEMI	获取价格	Switching Controller
LX1665	MICROSEMI	获取价格	DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1665A	MICROSEMI	获取价格	DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1665ACDW	MICROSEMI	获取价格	DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1665ACDWT	MICROSEMI	获取价格	Switching Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, BIPolar, PDSO18, PLAS
LX1665ACDW-TR	MICROSEMI	获取价格	Switching Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, PDSO18, ROHS COMPLIAN

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