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MAX15112

更新时间： 2024-11-05 14:58:19
品牌 Logo 应用领域
亚德诺 - ADI 开关转换器
页数 文件大小 规格书
23页 3093K
描述
高效、12A、电流模式同步整流降压转换器，内置开关

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中文翻译

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MAX15112 数据手册

 浏览型号MAX15112的Datasheet PDF文件第2页浏览型号MAX15112的Datasheet PDF文件第3页浏览型号MAX15112的Datasheet PDF文件第4页浏览型号MAX15112的Datasheet PDF文件第5页浏览型号MAX15112的Datasheet PDF文件第6页浏览型号MAX15112的Datasheet PDF文件第7页 
19-5966; Rev 1; 9/11  
E V A L U A T I O N K I T A V A I L A B L E  
General Description  
Features  
S Continuous 12A Output Current  
1ꢀ Feedback Accuracy Over Load, Line, and  
Temperature  
The MAX15112 high-efficiency, current-mode step-down  
regulator with integrated power switches operates from  
2.7V to 5.5V and delivers up to 12A of output current in a  
small 2mm x 3mm package. The MAX15112 offers excel-  
lent efficiency with skip mode capability at light-load con-  
ditions, yet provides unmatched efficiency under heavy  
load conditions. The combination of small size and high  
efficiency makes this device suitable for both portable  
and nonportable applications.  
S
S Operates from 2.7V to 5.5V Supply  
S Input Undervoltage Lockout  
S Adjustable Output Range from 0.6V Up to 0.94 x V  
IN  
S Programmable Soft-Start  
S Factory-Trimmed 1MHz Switching Frequency  
The MAX15112 utilizes a current-mode control architecture  
with a high-gain transconductance error amplifier, which  
allows a simple compensation scheme and enables a  
cycle-by-cycle current limit with fast response to line and  
load transients. A factory-trimmed switching frequency of  
1MHz (PWM operation) allows for a compact, all-ceramic  
capacitor design.  
S Stable with Low-ESR Ceramic Output Capacitors  
S Safe-Startup into a Prebiased Output  
S External Reference Input  
S Selectable Skip Mode Option for Improved  
Efficiency at Light Loads  
S Enable Input/PGOOD Output Allows Sequencing  
S Remote Ground Sense for Improved Accuracy  
S Thermal and Overcurrent Protection  
Integrated switches with low on-resistance ensure high  
efficiency at heavy loads while minimizing critical induc-  
tances. The MAX15112’s simple layout and footprint  
assure first-pass success in new designs.  
S Tiny 2.10mm x 3.05mm, 24-Bump WLP Package  
Other features of the MAX15112 include a capacitor-  
programmable soft-start to reduce inrush current, safe  
startup into a prebiased output, an enable input, and a  
power-good output for power sequencing.  
Applications  
Notebooks  
Servers  
Distributed Power Systems  
DDR Memory  
Base Stations  
The regulator is available in a 24-bump (4 x 6), 2.10mm  
x 3.05mm WLP package, and is fully specified over the  
-40NC to +85NC extended temperature range.  
Ordering Information appears at end of data sheet.  
Typical Operating Circuits  
ON  
EN  
BST  
OFF  
C
BST  
L
OUT  
SKIP  
AIN  
V
OUT  
LX  
C
OUT  
V
= 2.7V TO 5.5V  
IN  
MAX15112  
R1  
GSNS  
IN  
C
IN  
FB  
R
PULL  
PGOOD  
PGOOD  
COMP  
R2  
SS/REFIN  
GND  
R
C
C
C
CC  
C
SS  
C
PWM MODE OPERATION  
Typical Operating Circuits continued at end of data sheet.  
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX15112.related  
����������������������������������������������������������������� 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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