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MAX1733EUK+ PDF预览

MAX1733EUK+

更新时间: 2024-01-13 07:58:37
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
8页 261K
描述
Switching Regulator, Voltage-mode, 0.565A, 1200kHz Switching Freq-Max, BICMOS, PDSO5, LEAD FREE, SOT-23, 5 PIN

MAX1733EUK+ 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:SOT-23
包装说明:LSSOP, TSOP5/6,.11,37针数:5
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:12 weeks
风险等级:5.21模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:5.5 V
最小输入电压:2.7 V标称输入电压:3.6 V
JESD-30 代码:R-PDSO-G5JESD-609代码:e3
长度:2.9 mm湿度敏感等级:1
功能数量:1端子数量:5
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.565 A封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.45 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: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:0.95 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:1.6 mmBase Number Matches:1

MAX1733EUK+ 数据手册

 浏览型号MAX1733EUK+的Datasheet PDF文件第2页浏览型号MAX1733EUK+的Datasheet PDF文件第3页浏览型号MAX1733EUK+的Datasheet PDF文件第4页浏览型号MAX1733EUK+的Datasheet PDF文件第5页浏览型号MAX1733EUK+的Datasheet PDF文件第6页浏览型号MAX1733EUK+的Datasheet PDF文件第7页 
19-1586; Rev 0; 7/00  
Low-Voltage, Step-Down DC-DC Converters  
in SOT23  
General Description  
Features  
The MAX1733/MAX1734 step-down DC-DC converters  
deliver over 250mA to outputs as low as 1.25V. These  
converters use a unique proprietary current-limited con-  
trol scheme that achieves over 90% efficiency. These  
devices maintain extremely low quiescent supply cur-  
rent (40µA), and their high 1.2MHz (max) operating fre-  
quency permits small, low-cost external components.  
This combination of features makes the MAX1733/  
MAX1734 excellent high-efficiency alternatives to linear  
regulators in space-constrained applications.  
250mA Guaranteed Output Current  
Synchronous Rectifier for Over 90% Efficiency  
Tiny 5-Pin SOT23 Package  
40µA Quiescent Supply Current  
0.01µA Logic-Controlled Shutdown  
Up to 1.2MHz Switching Frequency  
Fixed 1.8V or 1.5V Outputs (MAX1734)  
Adjustable Output Voltage (MAX1733)  
Internal synchronous rectification greatly improves effi-  
ciency and eliminates the external Schottky diode  
required in conventional step-down converters. Both  
devices also include internal digital soft-start to limit  
input current upon startup and reduce input capacitor  
requirements.  
1.5% ꢀnitial Accuracy  
2.7V to 5.5V ꢀnput Range  
Soft-Start Limits Startup Current  
The MAX1733 provides an adjustable output voltage  
(1.25V to 2.0V). The MAX1734 provides factory-preset  
output voltages (see Selector Guide). Both are avail-  
able in space-saving 5-pin SOT23 packages.  
Ordering Information  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
PꢀN-PACKAGE  
5 SOT23-5  
MAX1733EUK-T  
MAX1734EUK_ _-T  
5 SOT23-5  
Note: The MAX1734 offers two output voltages. See the Selector  
Guide, then insert the proper designator into the blanks above to  
complete the part number.  
Applications  
Cellular, PCS, and Cordless Telephones  
PDAs, Palmtops, and Handy-Terminals  
Battery-Powered Equipment  
Selector Guide  
PART  
V
(V)  
TOP MARK  
ADKY  
OUT  
MAX1733EUK  
MAX1734EUK18  
MAX1734EUK15  
Adjustable  
1.8  
ADKW  
1.5  
ADKX  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
INPUT  
+2.7V TO +5.5V  
V
AT  
OUT  
250mA  
10µH  
IN  
LX  
IN  
1
2
3
5
4
LX  
2.2µF  
22µF  
MAX1734  
MAX1733  
MAX1734  
GND  
SHDN  
OUT  
SHDN  
OUT (FB)  
GND  
SOT23-5  
( ) ARE FOR MAX1733 ONLY.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  

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