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MAX8887

更新时间： 2024-11-13 14:58:11
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亚德诺 - ADI 稳压器
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9页 232K
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低压差、300mA线性稳压器，SOT23封装

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MAX8887 数据手册

 浏览型号MAX8887的Datasheet PDF文件第2页浏览型号MAX8887的Datasheet PDF文件第3页浏览型号MAX8887的Datasheet PDF文件第4页浏览型号MAX8887的Datasheet PDF文件第5页浏览型号MAX8887的Datasheet PDF文件第6页浏览型号MAX8887的Datasheet PDF文件第7页 
19-1859; Rev 4; 7/09  
Low-Dropout, 300mA Linear Regulators in SOT23  
7/MAX8  
General Description  
Features  
♦ Guaranteed 300mA Output Current (500mA for  
The MAX8887/MAX8888 low-dropout linear regulators  
operate from a 2.5V to 5.5V input and deliver up to  
300mA continuous (500mA pulsed) current. The  
MAX8887 is optimized for low-noise operation, while the  
MAX8888 includes an open-drain power-OK (POK) ouput  
flag. Both regulators feature exceptionally low 100mV  
dropout at 200mA. These devices are available in a vari-  
ety of preset output voltages in the 1.5V to 3.3V range.  
Pulsed Loads)  
♦ Low 100mV Dropout at 200mA Load  
♦ POK Output (MAX8888)  
♦ 42µV  
Output Noise (MAX8887)  
RMS  
♦ Preset Output Voltages (1.5V, 1.8V, 2.85V, and  
3.3V)  
♦ 55µA No-Load Supply Current  
An internal PMOS pass transistor allows the low 55µA  
supply current to remain independent of load, making  
these devices ideal for portable battery-powered equip-  
ment such as personal digital assistants (PDAs), cellu-  
lar phones, cordless phones, and notebook computers.  
Other features include a micropower shutdown mode,  
short-circuit protection, thermal shutdown protection,  
and an active-low open-drain POK output that indicates  
when the output is out of regulation. The  
MAX8887/MAX8888 are available in a thin 5-pin SOT23  
package that is only 1mm high.  
♦ Thermal-Overload and Short-Circuit Protection  
♦ Foldback Output Current-Limit Protection  
♦ 60dB PSRR at 1kHz  
♦ 0.1µA Shutdown Current  
♦ Thin 5-Pin SOT23 Package, 1mm High  
Ordering Information  
TEMP  
RANGE  
PIN-  
PACKAGE  
TOP  
MARK  
PART  
MAX8887EZK15+T  
MAX8887EZK18+T  
MAX8887EZK29+T  
MAX8887EZK33+T  
MAX8887EZKxy+T*  
MAX8888EZK15+T  
MAX8888EZK18+T  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
ADQD  
ADPX  
ADPY  
ADPZ  
—
________________________Applications  
Notebook Computers  
Wireless Handsets  
ADQE  
ADQA  
—
PDAs and Palmtop Computers  
Digital Cameras  
MAX8888EZK18/V+T -40°C to +85°C 5 SOT23  
PCMCIA Cards  
MAX8888EZK29+T  
MAX8888EZK33+T  
MAX8888EZKxy+T*  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
-40°C to +85°C 5 SOT23  
ADQB  
ADQC  
—
Hand-Held Instruments  
*Other versions (xy) between +1.5 and +3.3V are available in  
100mV increments. Contact factory for other versions. Minimum  
order quantity is 25,000 units.  
+Denotes a lead(Pb)-free RoHS-compliant package.  
/V denotes an automotive qualified part.  
Typical Operating Circuit  
Pin Configurations  
V
OUT  
INPUT  
2.5V TO 5.5V  
300mA  
IN  
OUT  
TOP VIEW  
C
IN  
C
OUT  
2.2µF  
2.2µF  
MAX8887  
MAX8888  
IN  
GND  
1
2
3
5
4
OUT  
IN  
GND  
1
2
3
5
OUT  
POK  
(BP)  
ON  
MAX8887  
MAX8888  
SHDN  
OFF  
C
GND  
BP  
0.01µF  
SHDN  
BP  
SHDN  
4
POK  
( ) ARE FOR MAX8887 ONLY.  
________________________________________________________________ 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.  
1234567...9

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