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ZLDO285 PDF预览

ZLDO285

更新时间: 2024-11-23 03:08:31
品牌 Logo 应用领域
捷特科 - ZETEX 稳压器
页数 文件大小 规格书
9页 84K
描述
2.85 VOLT ULTRA LOW DROPOUT REGULATOR

ZLDO285 数据手册

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2.85 VOLT ULTRA LOW DROPOUT  
REGULATOR  
ZLDO285  
ISSUE 2 - J UNE 1997  
DEVICE DESCRIPTION  
FEATURES  
The ZLDO Series low dropout linear regulators  
operate with an exceptionally low dropout  
voltage, typically only 30m V with a load  
current of 100mA. The regulator series features  
output voltages in the range 2.85 to 12 volts, this  
device provides an output voltage of 2.85 volts.  
Very low dropout voltage  
6mV dropout at 10mA output  
30mV dropout at 100mA output  
100mV dropout at 300mA output  
2.85 volt fixed output  
The ZLDO285 consumes a typical quiescent  
current of only 1mA at its maximum rated  
output current of 300mA. A battery low flag is  
available to indicate potential power fail  
situations. If the input voltage falls to within  
200mV of the regulated output voltage then the  
error output pulls low. The device also features  
an active high disable control. Once disabled  
the ZLDO quiescent current falls to typically  
11µA.  
Other voltages available  
Low quiescent current  
1mA quiescent (typ) at 300mA output  
Low battery flag  
Shutdown control  
Surface mount package  
APPLICATIONS  
The ZLDO devices are packaged in Zetex SM8  
8 pin small outline surface mount package,  
ideal for applications where space saving is  
important. The device low dropout voltage,  
low quiescent current and small size make it  
ideal for low power and battery powered  
applications. Battery powered circuits can  
make particular use of the low battery flag and  
shutdown features.  
Battery powered devices  
Portable instruments  
Portable communications  
Laptop/Palmtop computers  
Electronic organisers  
Low Battery Flag  
Vin  
LOW BATTERY  
COMPARATOR  
THERMAL  
SHUTDOWN  
Vo  
OUTPUT  
DRIVE  
BIAS  
Shutdown  
Control  
CIRCUIT  
Cs  
SHUTDOWN  
BANDGAP  
REFERENCE  
Shaping  
Gnd  

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