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MIC4744YTSETR PDF预览

MIC4744YTSETR

更新时间: 2024-11-21 19:53:31
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关光电二极管
页数 文件大小 规格书
23页 712K
描述
IC,SMPS CONTROLLER,VOLTAGE-MODE,CMOS,TSSOP,16PIN,PLASTIC

MIC4744YTSETR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:HTSSOP, TSSOP16,.25
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
其他特性:SEATED HT-CALCULATED模拟集成电路 - 其他类型:DUAL SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:5.5 V最小输入电压:2.9 V
标称输入电压:3.6 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:5 mm
湿度敏感等级:3功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:2 A
封装主体材料:PLASTIC/EPOXY封装代码:HTSSOP
封装等效代码:TSSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
座面最大高度:1.2 mm表面贴装:YES
切换器配置:BUCK最大切换频率:4400 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:4.4 mmBase Number Matches:1

MIC4744YTSETR 数据手册

 浏览型号MIC4744YTSETR的Datasheet PDF文件第2页浏览型号MIC4744YTSETR的Datasheet PDF文件第3页浏览型号MIC4744YTSETR的Datasheet PDF文件第4页浏览型号MIC4744YTSETR的Datasheet PDF文件第5页浏览型号MIC4744YTSETR的Datasheet PDF文件第6页浏览型号MIC4744YTSETR的Datasheet PDF文件第7页 
MIC4744  
4 MHz Dual 2A Integrated Switch  
Buck Regulator  
General Description  
Features  
The Micrel MIC4744 is a high efficiency dual PWM buck  
(step-down) regulator that provides dual 2A current output.  
The MIC4744 operates at 4MHz. A proprietary internal  
compensation technique allows a closed loop bandwidth of  
over 200kHz.  
2.9 to 5.5V supply voltage  
4MHz PWM mode  
2A Dual output  
Greater than 90% efficiency  
100% maximum duty cycle  
Output voltage adjustable down to 0.6V  
Ultra-fast transient response  
The low on-resistance internal P-Channel MOSFET of the  
MIC4744 allows efficiencies over 90%, reduces external  
components count and eliminates the need for an  
expensive current sense resistor.  
Ultra-small external components  
Stable with a 0.47µH inductor and a 10µF output  
capacitor  
The MIC4744 operates from 2.9V to 5.5V input and the  
output can be adjusted down to 0.6V. The device can  
operate with a maximum duty cycle of 100% for use in low-  
dropout conditions.  
Fully integrated 2A MOSFET switches  
Micro-power shutdown  
Thermal shutdown and current limit protection  
Available in 3mm x 3mm 16-pin MLF® and 16-pin  
TSSOP packages  
The MIC4744 is available in the exposed pad 16-pin  
3mm x 3mm MLF® and ETSSOP-16 packages with  
junction operating temperature ranging from –40°C to  
+125°C.  
–40°C to +125°C junction temperature range  
All support documentation can be found on Micrel’s web  
site at: www.micrel.com.  
Applications  
Broadband: xDSL modems  
Automotive satellite radios  
HD STB, DVD/TV recorder  
Computer peripherals: printers and graphic cards  
FPGA/ASIC  
General point of load  
Typical Application  
5.0Vin 3.3Vout Efficiency  
100  
98  
96  
94  
92  
90  
88  
86  
84  
82  
80  
0.0  
0.4  
0.8  
1.2  
1.6  
2.0  
OUTPUT CURRENT (A)  
2A 4MHz Dual Buck Regulator  
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-030209-C  
March 2009  
1

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