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MAX1586AEVKIT|MAX1586AEVSYS

更新时间： 2024-11-05 23:45:47
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Evaluation System/Evaluation Kit for the MAX1586A

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19-2861; Rev 0; 10/03  
Dual Step-Down Controllers with Saturation  
Protection, Dynamic Output, and Linear Regulator  
General Description  
Features  
o Inductor-Saturation Protection  
The MAX1540/MAX1541 dual pulse-width modulation  
(PWM) controllers provide the high efficiency, excellent  
transient response, and high DC-output accuracy nec-  
essary for stepping down high-voltage batteries to gen-  
erate low-voltage chipset and RAM power supplies in  
notebook computers.  
o Accurate Differential Current-Sense Inputs  
o Dual Ultra-High-Efficiency Quick-PWMs with  
100ns Load-Step Response  
o MAX1540  
1.8V/1.2V Fixed or 0.7V to 5.5V Adjustable  
Output (OUT1)  
The Maxim proprietary Quick-PWM™ controllers are  
free running, constant on-time with input feed forward.  
This configuration provides ultra-fast transient  
response, wide input-output (I/O) differential range, low  
supply current, and tight load-regulation characteris-  
tics. The controllers can accurately sense the inductor  
current across an external current-sense resistor in  
series with the output to ensure reliable overload and  
inductor saturation protection. Alternatively, the con-  
trollers can use the synchronous rectifier itself or loss-  
less inductor current-sensing methods to provide  
overload protection with lower power dissipation.  
2.5V/1.5V Fixed or 0.7V to 5.5V Adjustable  
Output (OUT2)  
Fixed 5V, 100mA Linear Regulator  
o MAX1541  
External Reference Input (REFIN1)  
Dynamically Selectable Output Voltage—0.7V  
to 5.5V (OUT1)  
2.5V/1.8V Fixed or 0.7V to 5.5V Adjustable  
Output (OUT2)  
Optional Power-Good and Fault Blanking  
During Transitions  
Fixed 5V or Adjustable 100mA Linear Regulator  
For a single step-down PWM controller with inductor-  
saturation protection, external-reference input voltage,  
and dynamically selectable output voltages, refer to the  
MAX1992/MAX1993 data sheet.  
o 1% V  
Accuracy over Line and Load  
OUT  
o 2V to 28V Battery Input Range  
o 170kHz to 620kHz Selectable Switching  
Frequency  
Applications  
o Overvoltage/Undervoltage-Protection Option  
o 1.7ms Digital Soft-Start  
Notebook Computers  
Core/IO Supplies as Low as 0.7V  
0.7V to 5.5V Supply Rails  
o Drives Large Synchronous-Rectifier FETs  
o 2V 0.7% Reference Output  
o Separate Power-Good Window Comparators  
CPU/Chipset/GPU with Dynamic Voltage Core  
Supplies (MAX1541)  
Pin Configurations  
DDR Memory Termination (MAX1541)  
Active Termination Buses (MAX1541)  
TOP VIEW  
Ordering Information  
OVP/UVP  
SKIP  
1
2
3
4
5
6
7
8
24 LX1  
23 BST1  
22 LDOON  
21 DL1  
PART  
TEMP RANGE PIN-PACKAGE  
LSAT  
MAX1540ETJ  
MAX1541ETL*  
-40°C to +85°C 32 Thin QFN 5mm x 5mm  
-40°C to +85°C 40 Thin QFN 6mm x 6mm  
TON  
MAX1540  
V
CC  
20 LDOOUT  
19 V+  
ILIM1  
ILIM2  
REF  
*Future product—contact factory for availability.  
18 DL2  
17 GND  
THIN QFN  
Pin Configurations continued at end of data sheet.  
Quick-PWM is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...49

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与MAX1586AEVKIT|MAX1586AEVSYS相关器件

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MAX1586B ADI

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 		高效率、低IQ PMIC，带有动态内核，用于PDA和智能电话
MAX1586BETM MAXIM

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MAX1586BETM+ MAXIM

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MAX1586BETM+T MAXIM

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MAX1586BETM-T MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, 7 X 7 MM, TQFN-48
MAX1586C MAXIM

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 		High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smart Phones
MAX1586C ADI

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 		高效率、低IQ PMIC，带有动态内核，用于PDA和智能电话
MAX1586CETM MAXIM

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 		High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smart Phones
MAX1586CETM+ MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, 7 X 7 MM, TQFN-48

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