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MAX8518

更新时间： 2024-11-18 11:14:43
品牌 Logo 应用领域
美信 - MAXIM 稳压器
页数 文件大小 规格书
10页 186K
描述
1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulators

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MAX8518 数据手册

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19-3188; Rev 2; 9/09  
1.425V to 3.6V Input, 1A,  
0.2V Dropout LDO Regulators  
x
67/MAX518  
General Description  
Features  
The MAX8516/MAX8517/MAX8518 low-dropout linear  
regulators operate from input voltages as low as 1.425V  
and are able to deliver up to 1A of continuous output  
current with a maximum dropout voltage of only 200mV.  
♦ 1.425V to 3.6V Input Voltage Range  
♦ Guaranteed 200mV Dropout at 1A Output Current  
♦
1.4ꢀ Output Aꢁꢁuraꢁc Oꢂer ꢃoadꢄ ꢃLneꢄ and  
Temperature (0°C to +85°C)ꢄ 0.6ꢀ InLtLal Aꢁꢁuraꢁc  
The output voltage can be set from 0.5V to (V - 0.2V)  
IN  
♦ CompatLble wLth CeramLꢁ CapaꢁLtors  
♦ Fast TransLent Response  
and is 1.4% accurate over load and line variations, from  
0°C to +85°C.  
These regulators use small, 1µF ceramic input capaci-  
tors and 4.7µF ceramic output capacitors to deliver 1A  
output current. High bandwidth provides excellent tran-  
sient response and limits the output voltage deviation to  
45mV for a 20mA to 1A load step, with only a 4.7µF  
ceramic output capacitor, and the voltage deviations can  
be reduced further by increasing the output capacitor.  
♦ 320µA OperatLng Supplc Current  
♦ <25µA Shutdown Supplc Current  
♦ Short-CLrꢁuLt ProteꢁtLon  
♦ Thermal-Oꢂerload ProteꢁtLon  
♦ Soft-Start ꢃLmLts Inrush Current  
Ordering Information  
Designed with an internal p-channel MOSFET pass  
transistor, the MAX8516/MAX8517/MAX8518 feature  
low 340µA (typ) supply current during dropout condi-  
tions. Soft-start reduces inrush current. Other features  
include a logic-controlled shutdown mode, short-circuit  
protection, and thermal-overload protection.  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
10 µMAX  
MAX8516EUB  
MAX8517EUB  
MAX8517EUB/V  
MAX8518EUB  
10 µMAX  
10 µMAX  
10 µMAX  
The MAX8517 features a power-OK (POK) output that  
transitions high when the regulator output is within  
10% of its nominal output voltage. The MAX8518  
features a 150ms power-on reset output.  
The parts are packaged in a 10-pin µMAX® package that  
includes an exposed pad for optimal power dissipation.  
/V Denotes an automotive qualified part.  
Typical Operating Circuit  
INPUT  
OUTPUT  
IN  
1.425V TO 3.6V  
0.5V TO (V - 0.2V), 1A  
IN_  
OUT_  
1µF  
Applications  
MAX8516  
MAX8517  
MAX8518  
Servers  
Post Regulators  
Notebooks  
PDAs  
POWER-ON RESET  
POWER-OK  
4.7µF  
Storage  
POR (MAX8518)  
POK (MAX8517)  
EN  
FB  
Networking  
Base Stations  
Optical Modules  
ATE  
ON  
GND  
OFF  
µMAX is a registered trademark of Maxim Integrated Products, Inc.  
Pin Configurations  
TOP VIEW  
EN  
IN  
1
2
3
4
5
10 N.C.  
EN  
IN  
1
2
3
4
5
10 N.C.  
EN  
IN  
1
2
3
4
5
10 N.C.  
9
8
7
6
OUT  
OUT  
FB  
9
8
7
6
OUT  
OUT  
FB  
9
8
7
6
OUT  
OUT  
FB  
MAX8516  
MAX8517  
MAX8518  
IN  
IN  
IN  
N.C.  
N.C.  
POK  
N.C.  
N.C.  
POR  
GND  
GND  
GND  
µMAX  
µMAX  
µMAX  
________________________________________________________________ MaxLm Integrated Produꢁts  
1
For prLꢁLngꢄ delLꢂercꢄ and orderLng LnformatLonꢄ please ꢁontaꢁt MaxLm DLreꢁt at 1-888-629-4642ꢄ  
or ꢂLsLt MaxLm’s websLte at www.maxLm-Lꢁ.ꢁom  
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