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MAX1714BEEE+T

更新时间： 2024-11-07 12:57:55
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美信 - MAXIM 电脑控制器
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MAX1714BEEE+T 数据手册

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19-1536; Rev 1; 12/99  
High-Speed Step-Down Controller  
for Notebook Computers  
General Description  
Features  
The MAX1714 pulse-width modulation (PWM) controller  
provides the high efficiency, excellent transient  
response, and high DC output accuracy needed for  
stepping down high-voltage batteries to generate low-  
voltage CPU core or chip-set/RAM supplies in notebook  
computers.  
ꢀ Ultra-High Efficiency  
ꢀ No Current-Sense Resistor (Lossless I  
)
LIMIT  
ꢀ Quick-PWM with 100ns Load-Step Response  
ꢀ 1% V Accuracy Over Line and Load  
OUT  
ꢀ 2.5V/3.3V Fixed or 1V to 5.5V Adjustable Output  
Maxim’s proprietary Quick-PWM™ quick-response,  
constant-on-time PWM control scheme handles wide  
input/output voltage ratios with ease and provides  
100ns “instant-on” response to load transients while  
maintaining a relatively constant switching frequency.  
Range  
ꢀ 2V to 28V Battery Input Range  
ꢀ 200/300/450/600kHz Switching Frequency  
ꢀ Overvoltage Protection (MAX1714A)  
ꢀ Undervoltage Protection  
The MAX1714 achieves high efficiency at a reduced  
cost by eliminating the current-sense resistor found in  
traditional current-mode PWMs. Efficiency is further  
enhanced by an ability to drive very large synchronous-  
rectifier MOSFETs.  
ꢀ 1.7ms Digital Soft-Start  
ꢀ Drives Large Synchronous-Rectifier FETs  
ꢀ 2V 1% Reference Output  
Single-stage buck conversion allows these devices to  
directly step down high-voltage batteries for the highest  
possible efficiency. Alternatively, two-stage conversion  
(stepping down the +5V system supply instead of the  
battery) at a higher switching frequency allows the mini-  
mum possible physical size.  
ꢀ Power-Good Indicator  
Ordering Information  
The MAX1714 is intended for CPU core, chipset,  
DRAM, or other low-voltage supplies as low as 1V. The  
MAX1714A is available in a 20-pin QSOP package and  
includes overvoltage protection. The MAX1714B is  
available in a 16-pin QSOP package with no overvolt-  
age protection. For applications requiring VID compli-  
ance or DAC control of output voltage, refer to the  
MAX1710/MAX1711 data sheet. For a dual output ver-  
sion, refer to the MAX1715† data sheet.  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
20 QSOP  
MAX1714AEEP  
MAX1714BEEE  
16 QSOP  
Minimal Operating Circuit  
BATTERY  
4.5V TO 28V  
+5V INPUT  
Applications  
V
V
CC  
DD  
V+  
Notebook Computers  
SHDN  
CPU Core Supply  
BST  
DH  
ILIM  
Chipset/RAM Supply as Low as 1V  
1.8V and 2.5V I/O Supply  
OUTPUT  
1.25V TO 2V  
MAX1714  
LX  
DL  
REF  
PGOOD PGND  
(GND)  
FB  
OUT  
SKIP  
AGND  
(GND)  
Quick-PWM is a trademark of Maxim Integrated Products.  
† Future product—contact factory for availability.  
( ) ARE FOR THE MAX1714B ONLY.  
Pin Configurations appear at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  
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MAX1714BEEE+T 替代型号

型号 品牌 替代类型 描述 数据表
MAX1714BEEE-T MAXIM

完全替代

 Switching Controller, Current-mode, 600kHz Switching Freq-Max, PDSO16, 0.150 INCH, 0.025 I
MAX1714BEEE+ MAXIM

类似代替

 Switching Controller, Current-mode, 600kHz Switching Freq-Max, PDSO16, 0.150 INCH, 0.025 I
MAX1714BEEE MAXIM

类似代替

 High-Speed Step-Down Controller for Notebook Computers

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MAX1715EEI+T MAXIM

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MAX1715EEI-T MAXIM

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MAX1715EVKIT MAXIM

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MAX1716EEG+ MAXIM

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 		Switching Controller, Current-mode, 550kHz Switching Freq-Max, PDSO24, 0.150 INCH, 0.025 I

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