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A8181 PDF预览

A8181

更新时间: 2024-01-18 03:13:38
品牌 Logo 应用领域
急速微 - ALLEGRO 稳压器功效
页数 文件大小 规格书
8页 105K
描述
LOW-DROPOUT, 5 V REGULATOR . HIGH EFFICIENCY

A8181 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:16
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
最大回动电压 1:0.3 V最大输入电压:10 V
最小输入电压:5.5 VJESD-30 代码:R-PDSO-G16
长度:10.3 mm功能数量:1
端子数量:16工作温度TJ-Max:150 °C
最大输出电流 1:0.5 A最大输出电压 1:5.15 V
最小输出电压 1:4.85 V标称输出电压 1:5 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
认证状态:Not Qualified调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:2.75 mm表面贴装:YES
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:7.5 mm
Base Number Matches:1

A8181 数据手册

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5 V REGULATOR  
8181  
LOW-DROPOUT, 5 V REGULATOR  
— HIGH EFFICIENCY  
Especially suited for hand-held, portable, battery-operated equip-  
ment such as cellular telephones, the A8181SLB low dropout voltage  
regulator provides high efficiency for maximum battery life in a mini-  
mum package size. Equally applicable to camcorders and portable  
computers, the device provides a fixed 5 V regulated continuous output  
at almost 200 mA of load current under worst-case conditions. Under  
normal operating conditions, output currents over 500 mA are  
permitted.  
16  
NC  
1
2
OUT  
15 OUT  
NC  
NC  
NC  
14  
3
4
GROUND  
13 GROUND  
12 GROUND  
A MOSFET pass element delivers high output current with an  
input-output differential of less than 300 mV. For high efficiency, the  
low dropout voltage allows a longer battery discharge before output  
voltage regulation is lost. A low quiescent current, even during high  
load conditions, makes the device ideal for standby power systems.  
High regulator accuracy and excellent temperature characteristics are  
provided by a bandgap reference. An enable input gives the designer  
complete control over sequential power-up or emergency shutdown.  
5
6
GROUND  
ENABLE  
VR  
11  
NC  
10 NC  
IN  
IN  
7
8
9
NC  
This device is supplied in a 16-lead wide-body, small-outline  
plastic power package (SOIC) for surface-mount applications. The  
copper batwing provides for maximum package power dissipation in  
the smallest possible construction. The A8181SLB is rated for opera-  
tion over a temperature range of -20°C to +85°C.  
Dwg. PS-018  
FEATURES AND BENEFITS  
High Efficiency Provides Extended Battery Life  
Less Than 300 mV Dropout Voltage  
Low Quiescent Current  
ABSOLUTE MAXIMUM RATINGS  
at TA = +25°C  
Input Voltage, VI ................................... 10 V  
Output Current, IO  
>200 mA Output Current  
(40% duty cycle) ............................ 1 A*  
(75% duty cycle) ..................... 500 mA*  
(continuous) ............................ 370 mA*  
Operating Temperature Range,  
TA ................................. -20°C to +85°C  
Junction Temperature, TJ .............. +150°C†  
Storage Temperature Range,  
LSTTL-Compatible ON/OFF Control  
For Sequential Power-up or Emergency Shutdown  
Internal Thermal Protection  
SOIC Surface-Mount Package  
TS ............................... -40°C to +150°C  
* Output current rating is limited by input voltage,  
duty cycle, and ambient temperature. Under any  
set of conditions, do not exceed a junction  
temperature of +150°C. See next page.  
† Fault conditions that produce excessive  
junction temperature will activate device thermal  
shutdown circuitry. These conditions can be  
tolerated but should be avoided.  
Always order by complete part number: A8181SLB  
.

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