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MAX1718BEEI+

更新时间： 2024-09-18 13:10:23
品牌 Logo 应用领域
美信 - MAXIM 电脑控制器
页数 文件大小 规格书
35页 694K
描述
Switching Controller, Current-mode, 1000kHz Switching Freq-Max, PDSO28, 0.150 INCH, 0.025 INCH PITCH, LEAD FREE, MO-137AD, QSOP-28

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MAX1718BEEI+ 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：SSOP
包装说明：SSOP, SSOP28,.25针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01Factory Lead Time：1 week
风险等级：1.42Is Samacsys：N
其他特性：ALSO REQUIRES A 2V TO 28V BATTERY INPUT VOLTAGE模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：4.5 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G28
JESD-609代码：e3长度：9.89 mm
湿度敏感等级：1功能数量：1
端子数量：28最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：SSOP28,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.73 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：1000 kHz温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3.9 mm
Base Number Matches：1

MAX1718BEEI+ 数据手册

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19-1960; Rev 3; 8/02  
Notebook CPU Step-Down Controller for Intel  
-
Mobile Voltage Positioning (IMVP II)  
General Description  
Features  
o Quick-PWM Architecture  
1ꢀ ꢁ Accuracy Over Line and Load  
The MAX1718 step-down controller is intended for core  
CPU DC-DC converters in notebook computers. It fea-  
tures a dynamically adjustable output, ultra-fast transient  
response, high DC accuracy, and high efficiency need-  
ed for leading-edge CPU core power supplies. Maxim’s  
proprietary Quick-PWM™ quick-response, constant-on-  
time PWM control scheme handles wide input/output  
voltage ratios with ease and provides 100ns “instant-on”  
response to load transients while maintaining a relatively  
constant switching frequency.  
o
OUT  
o 5-Bit On-Board DAC with Input Muxes  
o Precision-Adjustable ꢁ Slew Control  
OUT  
o 0.6ꢁ to 1.75ꢁ Output Adjust Range  
o Precision Offset Control  
o Supports ꢁoltage-Positioned Applications  
o 2ꢁ to 28ꢁ Battery Input Range  
The output voltage can be dynamically adjusted through  
the 5-bit digital-to-analog converter (DAC) over a 0.6V to  
1.75V range. The MAX1718 has an internal multiplexer  
that accepts three unique 5-bit VID DAC codes corre-  
sponding to Performance, Battery, and Suspend modes.  
o Requires a Separate 5ꢁ Bias Supply  
o 200/300/550/1000kHz Switching Frequency  
o Over/Undervoltage Protection  
o Drives Large Synchronous-Rectifier FETs  
†
Precision slew-rate control provides “just-in-time” arrival  
o 700µA (typ) I  
Supply Current  
CC  
at the new DAC setting, minimizing surge currents to  
and from the battery.  
o 2µA (typ) Shutdown Supply Current  
o 2ꢁ 1ꢀ Reference Output  
The internal DAC of the MAX1718B is synchronized to  
the slew-rate clock for improved operation under  
aggressive power management of newer chipsets and  
operating systems that can make incomplete mode tran-  
sitions.  
o ꢁGATE Blanking During Transition  
o Small 28-Pin QSOP Package  
Ordering Information  
A pair of complementary offset control inputs allows  
easy compensation for IR drops in PC board traces or  
creation of a voltage-positioned power supply. Voltage-  
positioning modifies the load-transient response to  
reduce output capacitor requirements and total system  
power dissipation.  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
MAX1718EEI  
MAX1718BEEI  
28 QSOP  
28 QSOP  
Minimal Operating Circuit  
Single-stage buck conversion allows these devices to  
directly step down high-voltage batteries for the highest  
possible efficiency. Alternatively, two-stage conversion  
(stepping down the 5V system supply instead of the bat-  
tery) at a higher switching frequency allows the mini-  
mum possible physical size.  
5V INPUT  
BATT 2V TO 28V  
V
V
CC  
DD  
V+  
SKP/SDN  
SHUTDOWN  
ILIM  
BST  
DH  
OUTPUT  
MAX1718  
0.6V TO 1.75V  
The MAX1718 is available in a 28-pin QSOP package.  
D0  
D1  
D2  
D3  
D4  
LX  
DUAL MODE VID  
MUX INPUTS  
Applications  
IMVP-II™ Notebook Computers  
2-Cell to 4-Cell Li+ Battery to CPU Core Supply  
Converters  
DL  
GND  
ZMODE  
SUS  
MUX CONTROL  
SUSPEND  
INPUT  
DECODER  
S0  
S1  
FB  
NEG  
POS  
5V to CPU Core Supply Converters  
TIME  
CC  
Pin Configuration appears at end of data sheet.  
V
CC  
REF  
POWER-GOOD  
OUTPUT  
†
VGATE  
OVP  
Patent pending.  
TON  
Quick-PWM is a trademark of Maxim Integrated Products.  
IMVP-II is a trademark of Intel Corp.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...35

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MAX1718BEEI+ 替代型号

型号 品牌 替代类型 描述 数据表
MAX1718BEEI+T MAXIM

功能相似

 Switching Controller, Current-mode, 1000kHz Switching Freq-Max, PDSO28, 0.150 INCH, 0.025
MAX1718BEEI MAXIM

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