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MAX8544EEP+ PDF预览

MAX8544EEP+

更新时间: 2024-10-01 19:49:19
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关光电二极管
页数 文件大小 规格书
27页 435K
描述
Switching Controller, Current-mode, 1200kHz Switching Freq-Max, BICMOS, PDSO20, 0.150 INCH, 0.250 INCH PITCH, MO-137AD, QSOP-20

MAX8544EEP+ 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,针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01Factory Lead Time:6 weeks
风险等级:1.42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:13.2 V最小输入电压:3 V
标称输入电压:13.2 VJESD-30 代码:R-PDSO-G20
JESD-609代码:e3长度:8.65 mm
湿度敏感等级:1功能数量:1
端子数量:20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
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:1200 kHz技术:BICMOS
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:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

MAX8544EEP+ 数据手册

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19-3155; Rev 0; 5/04  
Step-Down Controllers with Prebias Startup,  
Lossless Sensing, Synchronization, and OVP  
General Description  
Features  
The MAX8543/MAX8544 current-mode, constant-fre-  
quency PWM buck controllers operate from a 3V to  
13.2V input supply and generate adjustable 0.8V to 0.9  
Prebias Startup/Monotonic  
1% Output Accuracy  
x V output voltages at loads up to 25A. They feature  
IN  
Ceramic, Polymer, or Electrolytic Capacitors  
200kHz to 1MHz Adjustable Frequency  
160kHz to 1.2MHz Synchronization  
Lossless, Foldback Current Limit  
Overvoltage Protection  
adjustable switching frequency and synchronization for  
noise-sensitive applications.  
The MAX8543/MAX8544 can start with (or without) a pre-  
existing bias on the output, without discharging the out-  
put. This feature simplifies tracking supply designs for  
core and I/O applications and redundant supply designs.  
The MAX8543/MAX8544 use the DC resistance of the  
output inductor as the current-sense element for loss-  
less, low-cost current sensing. The current-sense  
threshold can be set to four discrete levels to accom-  
modate inductors with different DC resistance values.  
Enable (On/Off)  
Adjustable Soft-Start  
MAX8544  
Latch-Off/Autorecovery  
Power-OK Monitor  
Out-of-Phase Clock Output  
The MAX8544 features a power-OK monitor and two  
MAX8544 controllers that can operate at 180° out-of-  
phase for dual-output applications.  
Ordering Information  
Applications  
Base Stations  
Networks and Telecom  
Storage  
PART  
MAX8543EEE  
MAX8544EEP  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
16 QSOP  
20 QSOP  
Servers  
Pin Configurations appear at end of data sheet.  
Typical Operating Circuit  
INPUT 3V TO 13.2V  
V
IN  
= 3V  
TO 5.5V  
IN  
ON  
VL  
OFF  
EN  
FSYNC  
SS  
BST  
OPTIONAL  
SYNCHRONIZATION  
OUTPUT  
0.8V TO 0.9 x V  
UP TO 25A  
DH  
LX  
DL  
IN  
MAX8543  
COMP  
ILIM  
CS+  
GND  
PGND  
CS-  
FB  
POK (MAX8544)  
________________________________________________________________ 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.  

MAX8544EEP+ 替代型号

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