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MAX8873

更新时间： 2024-11-15 14:58:07
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
10页 253K
描述
低压差、120mA线性稳压器

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MAX8873 数据手册

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MAX8873T/S/R, MAX8874T/S/R  
Low-Dropout, 120mA Linear Regulators  
_______________General Description  
____________________________Features  
o LP2980 Pin-Compatible SOT23 Package  
The MAX8873T/S/R and MAX8874T/S/R low-dropout lin-  
ear regulators operate from a +2.5V to +6.5V input  
range and deliver up to 120mA. A PMOS pass transis-  
tor allows the low, 82µA supply current to remain inde-  
pendent of load, making these devices ideal for  
battery-operated portable equipment such as cellular  
phones and cordless phones.  
o Low, 55mV Dropout Voltage at 50mA I  
(130mV at 120mA)  
OUT  
o Low, 73µA No-Load Supply Current  
Low, 82µA Operating Supply Current (even in  
dropout)  
The devices feature Dual Mode™ operation: their out-  
put voltage is preset (at 3.15V for the T versions, 2.84V  
for the S versions, or 2.80V for the R versions) or can be  
adjusted with an external resistor divider. Total error on  
the output is 3.5ꢀ. Output voltages are set on the low  
side of popular ranges so that power drain is minimized  
for longer battery life. Other features include low-power  
shutdown, short-circuit protection, thermal shutdown  
protection, and reverse battery protection. The  
MAX8874 also includes an auto-discharge function,  
which actively discharges the output voltage to ground  
when the device is placed in shutdown mode. Both  
devices come in a miniature 5-pin SOT23 package.  
o Miniature External Components  
o Thermal Overload Protection  
o Output Current Limit  
o Reverse Battery Protection  
o Dual Mode Operation: Fixed or Adjustable  
(1.25V to 6.5V) Output  
o Low-Power Shutdown  
______________Ordering Information  
PIN-  
SOT TOP  
MARK  
PART  
TEMP RANGE  
PACKAGE  
For dual versions, refer to the MAX8865/MAX8866 data  
sheet. For low-noise versions with 30µV  
noise, refer to the MAX8877/MAX8878.  
output  
RMS  
5 SOT23  
5 SOT25  
5 SOT23  
5 SOT23  
5 SOT23  
5 SOT23  
5 SOT23  
MAX8873TEUK+T  
MAX8873SEUK+T  
MAX8873REUK+T  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
ABZH  
ABZI  
________________________Applications  
ABZL  
AFMM  
ABZJ  
ABZK  
ABZM  
MAX8873REUK/V+T -40°C to +85°C  
Cordless Telephones  
PCS Telephones  
Cellular Telephones  
PCMCIA Cards  
Modems  
MAX8874TEUK+T  
MAX8874SEUK+T  
MAX8874REUK+T  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
Hand-Held Instruments  
Palmtop Computers  
Electronic Planners  
+Denotes a lead-free (Pb)/RoHS-compliant package.  
/V denotes an automotive qualified part.  
__________Typical Operating Circuit  
__________________Pin Configuration  
TOP VIEW  
1
2
3
5
OUT  
IN  
GND  
OUT  
OUTPUT  
VOLTAGE  
IN  
MAX8873  
MAX8874  
C
MAX8873  
MAX8874  
C
1µF  
OUT  
1µF  
IN  
SHDN  
BATTERY  
GND  
SET  
SHDN  
4
SET  
SOT23  
Dual Mode is a trademark of Maxim Integrated Products.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-1257; Rev 2; 3/13  
1234567...10

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