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AAT3242ITP-TG-T1 PDF预览

AAT3242ITP-TG-T1

更新时间： 2024-01-11 08:55:30
品牌 Logo 应用领域
思佳讯 - SKYWORKS /
页数 文件大小 规格书
14页 1345K
描述
Fixed Positive LDO Regulator,

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AAT3242ITP-TG-T1 技术参数

生命周期：Obsolete包装说明：,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.69
调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATORBase Number Matches：1

AAT3242ITP-TG-T1 数据手册

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DATA SHEET  
AAT3242  
300mA/150mA Dual CMOS LDO Linear Regulator  
Functional Block Diagram  
INA  
OUTA  
Over-Current  
Protection  
Over -  
Temperature  
Protection  
POKA  
+
Error  
Amplifier  
-
Voltage  
Reference  
-
+
ENA  
91%  
VREF  
INB  
OUTB  
Over-Current  
Protection  
Over -  
Temperature  
Protection  
POKB  
+
Error  
Amplifier  
-
Voltage  
Reference  
-
+
ENB  
91%  
VREF  
GND  
Functional Description  
Applications Information  
The AAT3242 is a high performance dual LDO regulator  
with two Power OK pins. The first regulator (A) sources  
300mA of current, while the second (B) regulator can  
deliver 150mA. Each regulator has an integrated Power  
OK comparator which indicates when the respective out-  
put is out of regulation. The POK pins are open drain  
outputs, and they are held low when the respective  
regulator is in shutdown mode.  
To assure the maximum possible performance is obtained  
from the AAT3242, please refer to the following applica-  
tion recommendations.  
Input Capacitor  
A 1µF or larger capacitor is typically recommended for  
CIN in most applications. A CIN capacitor is not required  
for basic LDO regulator operation; however, if the  
AAT3242 is physically located more than three centime-  
ters from an input power source, a CIN capacitor will be  
needed for stable operation. CIN should be located as  
closely to the device VIN pin as practically possible. CIN  
values greater than 1µF will offer superior input line  
transient response and will assist in maximizing the  
highest possible power supply ripple rejection.  
The device has independent enable pins to shut down  
each LDO regulator for power conservation in portable  
products. Forcing EN A/B low (<0.6V) powers down the  
regulators and draws a maximum of 1.0µA. The AAT3242  
has short-circuit and thermal protection in case of  
adverse operating conditions. Device power dissipation  
is limited to the package type and thermal dissipation  
properties. Refer to the Thermal Considerations section  
of this datasheet for details on device operation at max-  
imum output current loads.  
Ceramic, tantalum, or aluminum electrolytic capacitors  
may be selected for CIN. There is no specific capacitor  
ESR requirement for CIN; however, for 300mA LDO regu-  
Skyworks Solutions, Inc.  
• Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
8
202259A  
• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012  
1...567891011...14

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