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MAX1920EUT+

更新时间： 2024-12-01 21:21:47
品牌 Logo 应用领域
美信 - MAXIM 开关光电二极管
页数 文件大小 规格书
11页 791K
描述
Switching Regulator, Voltage-mode, 0.95A, 1200kHz Switching Freq-Max, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN

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MAX1920EUT+ 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：SOIC
包装说明：LSSOP, TSOP6,.11,37针数：6
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.62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：2.5 V标称输入电压：3.6 V
JESD-30 代码：R-PDSO-G6JESD-609代码：e4
长度：2.9 mm湿度敏感等级：1
功能数量：1端子数量：6
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.95 A封装主体材料：PLASTIC/EPOXY
封装代码：LSSOP封装等效代码：TSOP6,.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温度等级：INDUSTRIAL
端子面层：Nickel/Gold (Ni/Au)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：1.625 mm
Base Number Matches：1

MAX1920EUT+ 数据手册

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19-2296; Rev 3; 8/05  
Low-Voltage, 400mA Step-Down  
DC-DC Converters in SOT23  
General Description  
Features  
The MAX1920/MAX1921 step-down converters deliver  
over 400mA to outputs as low as 1.25V. These convert-  
ers use a unique proprietary current-limited control  
scheme that achieves over 90% efficiency. These  
devices maintain extremely low quiescent supply current  
(50µA), and their high 1.2MHz (max) operating frequency  
permits small, low-cost external components. This combi-  
nation makes the MAX1920/MAX1921 excellent high-  
efficiency alternatives to linear regulators in space-  
constrained applications.  
♦ 400mA Guaranteed Output Current  
♦ Internal Synchronous Rectifier for >90% Efficiency  
♦ Tiny 6-Pin SOT23 Package  
♦ Available in 6-Pin TDFN Package (MAX1920)  
♦ Up to 1.2MHz Switching Frequency for Small  
External Components  
♦ 50µA Quiescent Supply Current  
♦ 0.1µA Logic-Controlled Shutdown  
♦ 2V to 5.5V Input Range  
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.  
♦ Fixed 1.5V, 1.8V, 2.5V, 3V, and 3.3V Output  
Voltages (MAX1921)  
♦ Adjustable Output Voltage (MAX1920)  
The MAX1920 provides an adjustable output voltage  
(1.25V to 4V). The MAX1921 provides factory-preset  
output voltages (see the Selector Guide). Both are  
available in space-saving 6-pin SOT23 packages. The  
MAX1920 is also available in a 6-pin TDFN package.  
♦
1.5% Initial Accuracy  
♦ Soft-Start Limits Startup Current  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
6 SOT23-6  
6 SOT23-6  
6 TDFN  
Applications  
MAX1920EUT-T  
MAX1920EUT+T  
MAX1920ETT-T  
MAX1920ETT+T  
MAX1921EUT_ _-T  
MAX1921EUT_ _+T  
Next-Generation Wireless Handsets  
PDAs, Palmtops, and Handy-Terminals  
Battery-Powered Equipment  
6 TDFN  
6 SOT23-6  
6 SOT23-6  
CDMA Power Amplifier Supply  
Note: The MAX1921 offers five preset output voltage options.  
See the Selector Guide, and then insert the proper designator  
into the blanks above to complete the part number.  
+Denotes lead-free package.  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
INPUT  
2V TO 5.5V  
OUTPUT  
1.5V UP TO 400mA  
4.7µH  
IN  
LX  
PGND  
OUT  
6
5
4
IN  
AGND  
SHDN  
1
2
3
6
5
4
LX  
4.75kΩ  
5600pF  
C
IN  
4.7µF  
MAX1921  
MAX1920  
MAX1921  
AGND  
SHDN  
PGND  
OUT (FB)  
MAX1920  
ON  
OFF  
1
2
3
SOT23-6  
TDFN  
( ) ARE FOR MAX1920 ONLY  
A "+" sign will replace the first pin indicator on lead-free packages.  
________________________________________________________________ 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...11

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MAX1920EUT+ 替代型号

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