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MAX8869_11

更新时间： 2024-11-19 11:14:27
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
11页 272K
描述
1A, Microcap, Low-Dropout, Linear Regulator Foldback Output Current Limit

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MAX8869_11 数据手册

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19-1692; Rev 1; ꢂ/11  
1A, Microcap, Low-Dropout,  
Linear Regulator  
MAX869  
General Description  
Features  
The MAX8869 low-dropout linear regulator operates  
from a +2.7V to +5.5V input and delivers a guaranteed  
1A load current with a low 200mV dropout. The high-  
accuracy ( 1ꢀ% output voltage is preset at +5Vꢁ +ꢂ.ꢂVꢁ  
+2.5Vꢁ +1.8Vꢁ or +1.0V or is adjustable from +0.8V to  
+5V with an external resistor-divider.  
o Guaranteed 1A Output Current  
o Stable with C = 1μF  
o Low 200mV Dropout at 1A  
OUT  
o
1% Output Voltage Accuracy  
Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V  
and Adjustable from +0.8V to +5.0V  
The MAX8869 uses Microcap® technology and  
requires only a small 1µF output capacitor for guaran-  
teed stability. An internal PMOS pass transistor allows  
low 500µA supply currentꢁ making this regulator useful  
for networking and telecom hardware as well as bat-  
tery-operated equipment. Other features include soft-  
startꢁ low-power shutdownꢁ short-circuit protectionꢁ and  
thermal shutdown protection.  
o 54dB PSRR at 100kHz  
o Adjustable Soft-Start  
o 3ms Reset Output  
o Foldback Output Current Limit  
o Thermal Overload Protection  
The MAX8869 is available in a 1.5Wꢁ 16-pin TSSOP  
packageꢁ which is ꢂ0ꢀ smaller than a SOT22ꢂ and only  
1.1mm high.  
o High-Power 16-Pin TSSOP Package (1.5W)  
30% Smaller than SOT223 (Only 1.1mm High)  
Ordering Information  
PART  
PIN-PACKAGE  
16 TSSOP-EP**  
16 TSSOP-EP**  
16 TSSOP-EP**  
16 TSSOP-EP**  
16 TSSOP-EP**  
V
(V)*  
OUT  
________________________Applications  
MAX8869EUE50+  
MAX8869EUEꢂꢂ+  
MAX8869EUE25+  
MAX8869EUE18+  
MAX8869EUE10+  
+5.0  
Telecom Hardware  
+ꢂ.ꢂ  
+2.5  
+1.8  
+1.0  
Network Equipment  
Mobile Phone Base Stations  
Personal Computers  
Notebook Computers  
Note: All devices are specified over the -40°C to +85°C  
temperature range.  
+Denotes a lead(Pb%-free/RoHS-compliant package.  
*Or adjustable from +0.8V to +5.0V. Contact factory for other  
preset output voltages.  
Microcap is a registered trademark of American Technical  
Ceramics Corp.  
**EP = Exposed pad.  
Pin Configuration  
Typical Operating Circuit  
TOP VIEW  
N.C.  
IN  
1
2
3
4
5
6
7
8
16 N.C.  
15 OUT  
14 OUT  
13 OUT  
12 OUT  
11 SET  
10 GND  
MAX8869  
IN  
IN  
IN  
IN  
OUT  
OUT  
OUT  
OUT  
RST  
IN  
V
V
IN  
OUT  
+2.7V TO +5.5V  
MAX8869  
UP TO 1A  
IN  
1μF  
IN  
1μF  
RST  
SHDN  
SS  
ON  
RESET  
OUTPUT  
SHDN  
SS  
OFF  
SET  
9
N.C.  
GND  
TSSOP-EP  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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