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MAX8885

更新时间： 2024-11-13 14:58:19
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
8页 179K
描述
150mA、低压差线性稳压器，带有电源就绪指示输出

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MAX8885 数据手册

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19-1576; Rev 0; 10/99  
150mA, Low-Dropout Linear Regulator  
with Power-OK Output  
General Description  
Features  
The MAX8885 low-dropout (LDO) linear regulator operates  
from a +2.5V to +6.5V input voltage range and delivers up  
to 150mA. It uses a P-channel MOSFET pass transistor to  
allow a low 85µA supply current—which is independent of  
the load—as well as LDO voltage. The MAX8885 is opti-  
mized to operate with low-cost, high-ESR output capaci-  
tors such as small case-size tantalum capacitors. It is ideal  
for cost-sensitive portable equipment such as PCS and  
cellular phones. For a pin-compatible, functionally equiva-  
lent device for use with a low-ESR, ceramic output capaci-  
tor, refer to the MAX8875 data sheet.  
ꢀ Optimized for Low-Cost Tantalum Capacitors  
ꢀ Pin Compatible with MIC5206  
ꢀ Undervoltage Power-OK Output  
ꢀ Preset Output Voltages (±±1 accuracꢀy  
ꢀ Guaranteed ±50mA Output Current  
ꢀ 85µA No-Load Supplꢀ Current  
ꢀ Low ±±0mV Dropout at ±00mA Load (±65mV at  
±50mA loady  
The MAX8885 features a power-OK output that indicates  
when the output is out of regulation, and is available in  
preset output voltage versions of 5.0V, 3.3V, 3.0V, 2.7V,  
and 2.5V. Other features include 1µA (max) shutdown cur-  
rent, short-circuit protection, thermal shutdown protection,  
and reverse-battery protection. The MAX8885 is available  
in a miniature 5-pin SOT23 package.  
ꢀ Thermal-Overload and Short-Circuit Protection  
ꢀ Reverse-Batterꢀ Protection  
ꢀ 60dB PSRR at ±00Hz  
ꢀ ±µA max Shutdown Current  
Ordering Information  
Applications  
PCS Phones  
Modems  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
5 SOT23-5  
5 SOT23-5  
5 SOT23-5  
5 SOT23-5  
5 SOT23-5  
MAX8885EUK25  
MAX8885EUK27  
MAX8885EUK30  
MAX8885EUK33  
MAX8885EUK50  
Cellular Phones  
Cordless Phones  
PCMCIA Cards  
Hand-Held Instruments  
Palmtop Computers  
Electronic Planners  
Output Voltage Selector Guide  
PART  
Note: See Output Voltage Selector Guide for more information.  
V
OUT  
(Vy  
TOP MARK  
MAX8885EUK25  
MAX8885EUK27  
MAX8885EUK30  
MAX8885EUK33  
MAX8885EUK50  
2.5  
ADLE  
2.7  
3.0  
3.3  
5.0  
ADLF  
ADLG  
ADLH  
ADLJ  
Typical Operating Circuit  
Note: Other output voltages between 2.5V and 5.0V are avail-  
able in 100mV increments—contact factory for information.  
Minimum order quantity is 25,000 units.  
OUTPUT  
PRESET  
2.5V TO 5.0V  
150mA  
Pin Configuration  
INPUT  
+2.5V TO +6.5V  
TOP VIEW  
IN  
OUT  
POK  
C
C
OUT  
IN  
1
2
3
5
4
OUT  
POK  
IN  
GND  
4.7µF  
1µF  
MAX8885  
MAX8885  
100k  
ON  
SHDN  
TO  
µC  
OFF  
SHDN  
GND  
SOT23-5  
________________________________________________________________ Maxim Integrated Products  
±
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.  
12345678

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MAX8885EUK33 MAXIM

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MAX8885EUK33+T MAXIM

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MAX8885EUK50 MAXIM

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 		150mA, Low-Dropout Linear Regulator with Power-OK Output

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