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MAX15112

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 3203K
描述
High-Efficiency, 12A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches

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MAX15112 数据手册

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����������������������������������������������������������������� ꢀMaxim Integrated Productsꢀ ꢀ 1  
19-5966; 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  
SꢀContinuousꢀ12AꢀOutputꢀCurrentꢀOverꢀTemperature  
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.  
Sꢀ 1ꢁꢀFeedbackꢀAccuracyꢀOverꢀLoad,ꢀLine,ꢀandꢀ  
Temperature  
SꢀOperatesꢀfromꢀ2.7Vꢀtoꢀ5.5VꢀSupply  
SꢀInputꢀUndervoltageꢀLockout  
Sꢀ AdjustableꢀOutputꢀRangeꢀfromꢀ0.6VꢀUpꢀtoꢀ0.94ꢀxꢀV  
SꢀProgrammableꢀSoft-Start  
IN  
SꢀFactory-Trimmedꢀ1MHzꢀSwitchingꢀFrequency  
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.  
SꢀStableꢀwithꢀLow-ESRꢀCeramicꢀOutputꢀCapacitors  
SꢀSafe-StartupꢀintoꢀaꢀPrebiasedꢀOutput  
SꢀExternalꢀReferenceꢀInput  
SꢀSelectableꢀSkipꢀModeꢀOptionꢀforꢀImprovedꢀ  
EfficiencyꢀatꢀLightꢀLoads  
SꢀEnableꢀInput/PGOODꢀOutputꢀAllowsꢀSequencingꢀ  
SꢀRemoteꢀGroundꢀSenseꢀforꢀImprovedꢀAccuracy  
SꢀThermalꢀandꢀOvercurrentꢀProtection  
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.  
SꢀTinyꢀ2.10mmꢀxꢀ3.05mm,ꢀ24-BumpꢀWLPꢀPackage  
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  
Forꢀpricing,ꢀdelivery,ꢀandꢀorderingꢀinformation,ꢀpleaseꢀcontactꢀMaximꢀDirectꢀatꢀ1-888-629-4642,ꢀ  
orꢀvisitꢀMaxim’sꢀwebsiteꢀatꢀwww.maxim-ic.com.  
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