- 您现在的位置：买卖IC网 > PDF目录45007 > LX1662CDT 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO14 PDF资料下载
参数资料
| 型号： | LX1662CDT |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | PLASTIC, SOIC-14 |
| 文件页数： | 1/15页 |
| 文件大小： | 308K |
| 代理商： | LX1662CDT |
DESCRIPTION
KEY FEATURES
The LX1662/62A and LX1663/63A are
Monolithic Switching Regulator Con-
troller 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 with-
out Expensive Current Sense Resistors.
Current-sensing mechanism can use PCB
trace resistance or the parasitic resistance of
the main inductor.
The LX1662A and
LX1663A have reduced current sense com-
parator threshold for optimum perfor-
mance using a PCB trace. For applications
requiring a high degree of accuracy, a
conventional sense resistor can be used to
sense current.
Programmable Synchronous Recti-
fier 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 a DIP switch on the motherboard, or
hardwired into the processor’s package (as
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
I 5-bit Programmable Output For CPU Core
Supply
I No Sense Resistor Required For Short-
Circuit Current Limiting
I Designed To Drive Either Synchronous Or
Non-Synchronous Output Stages
I Lowest System Cost Possible For Price-
Sensitive Pentium And Pentium II Class
Applications
I Soft-Start Capability
I Modulated, Constant Off-Time Architecture
For Fast Transient Response And Simple
System Design
I Available Over-Voltage Protection (OVP)
Crowbar Driver And Power Good Flag
(LX1663 only)
I Small, Surface-Mount Packages
Intel Corporation specification. The device
can drive dual MOSFET’s resulting in typical
efficiencies of 85 - 90% even with loads in
excess of 10 amperes. For cost sensitive
applications, the bottom MOSFET can be
replaced with a Schottky diode (non-syn-
chronous operation).
Smallest Package Size. The LX1662 is
available in a narrow body 14-pin surface
mount IC package for space sensitive appli-
cations. The LX1663 provides the additional
functions of Over Voltage Protection (OVP)
and Power Good (PWRGD) output drives
for applications requiring output voltage
monitoring and protection functions.
Ultra-Fast Transient Response Re-
duces System Cost. The modulated off-
time architecture results in the fastest tran-
sient response for a given inductor, reduc-
ing output capacitor requirements, and re-
ducing the total regulator system cost.
Over-Voltage Protection and Power
Good Flag. The OVP output in the LX1663
& LX1663A can be used to drive an SCR
crowbar circuit to protect the load in the
event of a short-circuit of the main MOSFET.
The LX1663 & LX1663A also have a logic-
level Power Good Flag to signal when the
output voltage is out of specified limits.
PRODUCT H IGHLIGHT
SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
P RODUCTION D AT A S HEET
T HE
I NFINITE
P OWER
OF
I NNOV A TION
LX1662/62A, LX1663/63A
LIN DOC #: 1662
APPLICATIONS
I Socket 7 Microprocessor Supplies
(including Intel Pentium Processor, AMD-
K6TM And Cyrix 6x86TM, Gx86TM and M2TM
Processors)
I Pentium II and Deschutes Processor & L2-
Cache Supplies
I Voltage Regulator Modules
I General Purpose DC:DC Converter
Applications
P ACKAGE ORDER INFORMATION
T
A (°C)
Plastic DIP
14-pin
0 to 70
LX1662CN
LX1663CN
LX1662CD
LX1663CD
LX1662ACN
LX1663ACN
LX1662ACD
LX1663ACD
N
Note: All surface-mount packages are available in Tape & Reel. Append the letter "T" to part number. (i.e. LX1662CDT)
Plastic DIP
16-pin
N
Plastic SOIC
14-pin
D
Plastic SOIC
16-pin
D
LX1662
IN A
PENTIUM/PENTIUM II
SINGLE-CHIP POWER
SUPPLY SOLUTION
Copyright 1999
Rev. 1.1 11/99
1
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
L IN F INITY M ICROELECTRONICS I NC .
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
SS
TDRV
V
CC
INV
V
CC_CORE
VID0
VID1
VID2
VID3
VID4
C
T
BDRV
GND
V
C1
U1
LX1662
VID3
C
5
1F
12V
R
1
V
OUT
5V
14-pin, Narrow Body SOIC
Q
1
IRL3102
L
1, 2.5H
6.3V, 1500F x 3**
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
8
680pF
VID2
VID1
VID0
VID4
C
3
0.1F
2.5m
9
Supply Voltage
for CPU Core
6.3V
1500F x3
** Three capacitors for Pentium
Four capacitors for Pentium II
Q
2
IRL3303
C
1
C
2
L
2
1H
See
next
page
for
Selection
Guide
相关PDF资料 |
PDF描述 |
|---|---|
| LX1663CDT | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16 |
| LX1663ACDT | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16 |
| LX1662ACD | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO14 |
| LX1662CD | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO14 |
| LX1662CN | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LX1662CN | 功能描述:IC PWM PROG SGL 5BIT DAC 14 DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| LX1663 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1663A | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1663ACD | 功能描述:IC PWM PROG SGL 5BIT DAC 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| LX1663ACN | 功能描述:IC PWM PROG SGL 5BIT DAC 16DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。