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MAX1920EUT PDF预览

MAX1920EUT

更新时间: 2024-11-30 23:45:55
品牌 Logo 应用领域
美信 - MAXIM 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
9页 371K
描述
SMPS Controller

MAX1920EUT 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:SOIC
包装说明:MO-178AB, SOT-23, 6 PIN针数:6
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.61
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
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 VJESD-30 代码:R-PDSO-G6
JESD-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
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:1.45 mm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/Palladium/Gold (Ni/Pd/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:20
宽度:1.625 mmBase Number Matches:1

MAX1920EUT 数据手册

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19-2296; Rev 1; 7/02  
Low-Voltage, 400mA Step-Down  
DC-DC Converters in SOT23  
General Description  
Features  
400mA Guaranteed Output Current  
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.  
Internal Synchronous Rectifier for >90%  
Efficiency  
Tiny 6-Pin SOT23 Package  
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.  
1.5% Initial Accuracy  
Soft-Start Limits Startup Current  
Ordering Information  
Applications  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
Next-Generation Wireless Handsets  
PDAs, Palmtops, and Handy-Terminals  
Battery-Powered Equipment  
MAX1920EUT-T  
MAX1921EUT_ _-T  
6 SOT23-6  
6 SOT23-6  
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.  
CDMA Power Amplifier Supply  
Typical Operating Circuit  
Pin Configuration  
INPUT  
OUTPUT  
4.7µH  
TOP VIEW  
2V TO 5.5V  
1.5V UP TO 400mA  
IN  
LX  
PGND  
OUT  
4.75kΩ  
5600pF  
C
IN  
4.7µF  
IN  
AGND  
SHDN  
1
2
3
6
5
4
LX  
MAX1921  
AGND  
MAX1920  
MAX1921  
PGND  
OUT (FB)  
ON  
SHDN  
OFF  
SOT23-6  
( ) ARE FOR MAX1920 ONLY  
________________________________________________________________ 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.  

MAX1920EUT 替代型号

型号 品牌 替代类型 描述 数据表
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