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MAX15118

更新时间： 2024-11-04 11:18:31
品牌 Logo 应用领域
美信 - MAXIM 稳压器开关
页数 文件大小 规格书
23页 3274K
描述
High-Efficiency, 18A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches

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MAX15118 数据手册

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����������������������������������������������������������������� ꢀMaxim Integrated Productsꢀ ꢀ 1  
19-5967; Rev 0; 6/11  
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  
SꢀContinuousꢀ18AꢀOutputꢀCurrentꢀOverꢀTemperature  
The MAX15118 high-efficiency, current-mode step-down  
regulator with integrated power switches operates from  
2.7V to 5.5V and delivers up to 18A of output current in  
a small 2mm x 3.5mm package. The MAX15118 offers  
excellent efficiency with skip mode capability at light-  
load conditions, 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.  
Sꢀ 1ꢁꢀFeedbackꢀAccuracyꢀOverꢀLoad,ꢀLine,ꢀandꢀ  
Temperature  
SꢀOperatesꢀfromꢀ2.7Vꢀtoꢀ5.5VꢀSupply  
SꢀInputꢀUndervoltageꢀLockout  
Sꢀ AdjustableꢀOutputꢀRangeꢀfromꢀ0.6VꢀUpꢀtoꢀ0.94ꢀxꢀV  
SꢀProgrammableꢀSoft-Start  
IN  
SꢀFactory-Trimmedꢀ1MHzꢀSwitchingꢀFrequency  
The MAX15118 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.  
SꢀStableꢀwithꢀLow-ESRꢀCeramicꢀOutputꢀCapacitors  
SꢀSafe-StartupꢀintoꢀaꢀPrebiasedꢀOutput  
SꢀExternalꢀReferenceꢀInput  
SꢀSelectableꢀSkipꢀModeꢀOptionꢀforꢀImprovedꢀ  
EfficiencyꢀatꢀLightꢀLoads  
SꢀEnableꢀInput/PGOODꢀOutputꢀAllowsꢀSequencing  
SꢀRemoteꢀGroundꢀSenseꢀforꢀImprovedꢀAccuracy  
SꢀThermalꢀandꢀOvercurrentꢀProtection  
Integrated switches with low on-resistance ensure high  
efficiency at heavy loads while minimizing critical induc-  
tances. The MAX15118’s simple layout and footprint  
assure first-pass success in new designs.  
SꢀTinyꢀ2.10mmꢀxꢀ3.56mm,ꢀ28-BumpꢀWLPꢀPackage  
Other features of the MAX15118 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  
DDR Memory  
Base Stations  
Servers  
The regulator is available in a 28-bump (4 x 7), 2.10mm  
x 3.56mm WLP package, and is fully specified over the  
-40NC to +85NC extended temperature range.  
Distributed Power Systems  
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  
MAX15118  
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/MAX15118.related  
Forꢀpricing,ꢀdelivery,ꢀandꢀorderingꢀinformation,ꢀpleaseꢀcontactꢀMaximꢀDirectꢀatꢀ1-888-629-4642,ꢀ  
orꢀvisitꢀMaxim’sꢀwebsiteꢀatꢀwww.maxim-ic.com.  
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