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AAT1143IJS-2.5-T1 PDF预览

AAT1143IJS-2.5-T1

更新时间: 2024-02-27 03:18:08
品牌 Logo 应用领域
ANALOGICTECH 转换器稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
20页 594K
描述
1MHz 400mA Step-Down Converter

AAT1143IJS-2.5-T1 技术参数

生命周期:Active包装说明:TSOJ, TSSOJ8,.09,20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.65
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODEJESD-30 代码:R-PDSO-J8
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:0.4 A
封装主体材料:PLASTIC/EPOXY封装代码:TSOJ
封装等效代码:TSSOJ8,.09,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:YES
最大切换频率:1500 kHz温度等级:INDUSTRIAL
端子形式:J BEND端子节距:0.5 mm
端子位置:DUALBase Number Matches:1

AAT1143IJS-2.5-T1 数据手册

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AAT1143  
1MHz 400mA Step-Down Converter  
SwitchReg  
General Description  
Features  
The AAT1143 SwitchReg™ is a member of  
AnalogicTech's Total Power Management IC™  
(TPMIC™) product family. It is a 1MHz step-down  
converter with an input voltage range of 2.7V to  
5.5V and output as low as 0.6V. Its low supply cur-  
rent, small size, and high switching frequency  
make the AAT1143 the ideal choice for portable  
applications.  
VIN Range: 2.7V to 5.5V  
VOUT Adjustable Down to 0.6V  
— Fixed or Adjustable Version  
25µA No Load Quiescent Current  
Up to 95% Efficiency  
400mA Max Output Current  
1MHz Switching Frequency  
Soft Start  
Over-Temperature Protection  
Current Limit Protection  
100% Duty Cycle Low-Dropout Operation  
0.1µA Shutdown Current  
The AAT1143 is available in either a fixed version  
with internal feedback or a programmable version  
with external feedback resistors. It can deliver  
400mA of load current while maintaining a low  
25µA no load quiescent current. The 1MHz switch-  
ing frequency minimizes the size of external com-  
ponents while keeping switching losses low. The  
AAT1143 feedback and control delivers excellent  
load regulation and transient response with a small  
output inductor and capacitor.  
SC70JW-8 Package  
Temperature Range: -40°C to +85°C  
Applications  
The AAT1143 is designed to maintain high efficien-  
cy throughout the operating range, which is critical  
for portable applications.  
Cellular Phones  
Digital Cameras  
Handheld Instruments  
Microprocessor / DSP Core / IO Power  
PDAs and Handheld Computers  
USB Devices  
The AAT1143 is available in a space-saving  
2.0x2.1mm SC70JW-8 package and is rated over  
the -40°C to +85°C temperature range.  
Typical Application (Fixed Output Voltage)  
AAT1143 Efficiency  
(VOUT = 2.5V; L = 4.7µH)  
VO  
VIN  
U1  
AAT1143  
100  
90  
80  
70  
60  
L1  
3
1
5
8
4
2
7
6
VIN = 3.3V  
VIN  
EN  
LX  
4.7µH  
OUT  
C2  
4.7µF  
C1  
4.7µF  
AGND PGND  
PGND PGND  
0.1  
1
10  
100  
1000  
Output Current (mA)  
1143.2005.09.1.7  
1

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