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MAX1745AUB-T PDF预览

MAX1745AUB-T

更新时间: 2024-11-14 13:10:23
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
15页 296K
描述
Switching Controller, Voltage-mode, 330kHz Switching Freq-Max, PDSO10, MICRO MAX, MO-187CBA, MICRO SOP10

MAX1745AUB-T 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:TSSOP, TSSOP10,.19,20针数:10
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.17
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:36 V
最小输入电压:4.5 V标称输入电压:5.5 V
JESD-30 代码:S-PDSO-G10JESD-609代码:e0
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:10
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP10,.19,20封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):245
认证状态:Not Qualified座面最大高度:1.1 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:330 kHz
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.5 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 mmBase Number Matches:1

MAX1745AUB-T 数据手册

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19-1776; Rev 4; 8/09  
High-Voltage, Step-Down DC-DC  
Controllers in µMAX  
/MAX1745  
General Description  
____________________________Features  
High-Voltage Operation (Up to 36V IN)  
Efficiency > 90%  
The MAX1744/MAX1745 are step-down DC-DC con-  
trollers capable of handling up to 36V inputs. These  
parts use a proprietary current-limited control scheme  
for excellent light- and full-load efficiency, while their  
330kHz (max) switching frequency permits small exter-  
nal components for space-critical applications.  
Operation to 100% duty cycle permits the lowest possi-  
ble dropout voltage.  
Output Power Capability Exceeds 50W  
10-Pin µMax Package  
Low-Dropout Voltage  
100% (max) Duty Cycle  
The MAX1744 contains an internal feedback network  
that provides a pin-selectable output voltage of either  
3.3V or 5V. The MAX1745 uses an external feedback  
network to generate an adjustable output voltage  
between 1.25V and 18V.  
90µA Quiescent Current  
4µA Shutdown Current  
Up to 330kHz Switching Frequency  
The MAX1744/MAX1745 are available in a space-sav-  
ing 10-pin μMAX package.  
®
Output Voltage  
5V or 3.3V (MAX1744)  
Adjustable 1.25V to 18V (MAX1745)  
________________________Applications  
Current-Limited Control Scheme  
Automotive Electronics  
Telecom Systems  
Ordering Information  
Wall-Cube-Powered Devices  
Industrial Control Systems  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +125°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +125°C  
-40°C to +85°C  
PIN-PACKAGE  
10 μMAX  
10 μMAX  
10 μMAX  
10 μMAX  
10 μMAX  
10 μMAX  
MAX1744EUB+  
MAX1744AUB+  
MAX1744EUB/V+  
MAX1745EUB+  
MAX1745AUB+  
MAX1745EUB/V+  
®
®
Firewire /IEEE 1394  
μMAX is a registered trademark of Maxim Integrated Products, Inc.  
Firewire is a registered trademark of Apple, Inc.  
IEEE is a registered service mark of the Institute of Electrical  
and Electronics Engineers, Inc.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
/V Denotes an automotive qualified part.  
Typical Operating Circuit  
Pin Configuration  
IN  
TOP VIEW  
4.5V TO 36V  
+
IN VH  
GND  
VL  
1
2
3
4
5
10 IN  
P
EXT  
ON  
5V  
SHDN  
3/5  
OFF  
9
8
7
6
EXT  
MAX1744  
MAX1745  
3.3V  
REF  
VH  
MAX1744  
3/5 (FB)  
SHDN  
CS  
VL  
OUT  
CS  
REF  
OUT  
OUT  
3.3V  
OR 5V  
GND  
μMAX  
( ) ARE FOR MAX1745 ONLY.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim's website at www.maxim-ic.com.  

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