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AAT2505IWP-AQ-T1 PDF预览

AAT2505IWP-AQ-T1

更新时间： 2024-02-01 08:01:19
品牌 Logo 应用领域
ANALOGICTECH 转换器稳压器
页数 文件大小 规格书
26页 845K
描述
Dual Channel, Step-Down Converter/Linear Regulator

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AAT2505IWP-AQ-T1 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：SON, SOLCC12,.12,18Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.84模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODEJESD-30 代码：R-PDSO-N12
端子数量：12最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.6 A
封装主体材料：PLASTIC/EPOXY封装代码：SON
封装等效代码：SOLCC12,.12,18封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
子类别：Switching Regulator or Controllers表面贴装：YES
最大切换频率：2000 kHz温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.45 mm
端子位置：DUALBase Number Matches：1

AAT2505IWP-AQ-T1 数据手册

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AAT2505  
Dual Channel, Step-Down  
Converter/Linear Regulator  
™
SystemPower  
General Description  
Features  
The AAT2505 is a member of AnalogicTech's Total  
Power Management IC™ (TPMIC™) product fam-  
ily. It is a low dropout (LDO) linear regulator and a  
step-down converter with an input voltage range of  
2.7V to 5.5V, making it ideal for applications with  
single cell lithium-ion / polymer batteries.  
•
•
VIN Range: 2.7V to 5.5V  
300mA LDO  
— 400mV Dropout Voltage at 300mA  
— High Accuracy: ±1.5%  
— Fast Line / Load Transient Response  
— Power OK Output  
•
600mA Step-Down Converter  
— Up To 98% Efficiency  
The LDO has an independent input pin and is capa-  
ble of delivering up to 300mA of current. The linear  
regulator has been designed for high-speed turn-on  
and turn-off performance, fast transient response,  
and good power supply rejection ratio (PSRR).  
Other features include low quiescent current, low  
dropout voltage, and a Power-OK (POK) open drain  
output signaling when VOUT is in regulation.  
— 27µA No Load Quiescent Current  
— Shutdown Current <1µA  
— Low RDS(ON) Integrated Power Switches  
— Fast Turn-On Time (150µs Typical)  
— Low Dropout 100% Duty Cycle  
— 1.4MHz Switching Frequency  
— Internal Soft Start  
The 600mA step-down converter is designed to  
operate with 1.4MHz of switching frequency, mini-  
mizing external component size and cost while  
maintaining a low 27µA no load quiescent current.  
•
Over-Temperature and Current Limit  
Protection  
TDFN33-12 Package  
•
•
-40°C to +85°C Temperature Range  
Peak current mode control with internal compen-  
sation provides a stable converter with a low equiv-  
alent series resistance (ESR) ceramic output  
capacitor for extremely low output ripple.  
Applications  
For maximum battery life with high voltage outputs,  
the step-down converter duty cycle increases to  
100%. The output voltage is either fixed or adjustable  
with an integrated P- and N-channel MOSFET power  
stage and 1.4MHz switching frequency.  
•
•
•
•
•
•
Cellular Phones  
Digital Cameras  
Handheld Instruments  
Microprocessor/DSP Core/IO Power  
PDAs and Handheld Computers  
Portable Media Players  
The AAT2505 is available in a Pb-free, 12-pin  
TDFN33 package and is rated over a temperature  
range of -40°C to +85°C.  
Typical Application  
VIN = 2.7V to 5.5V  
Efficiency  
(VOUT = 2.5V; L = 6.8µH)  
C3  
10µF  
100  
90  
3
5
9
6
7
8
4
VP  
VCC  
EN  
2.5V at 600mA  
10  
2
VLDO  
ENLDO  
OUT  
POK  
GND  
U1  
L1  
3.3V at 300mA  
LX  
6.8µH  
VIN = 3.3V  
11  
12  
1
FB  
80  
R3 100kΩ  
SGND  
PGND  
C1  
4.7µF  
C4  
70  
2.2µF  
AAT2505  
60  
0.1  
1
10  
100  
1000  
L1 Sumida CDRH3D16-4R7 C1 Murata GRM219R61A475KE19  
C3 Murata GRM21BR60J106KE19  
Output Current (mA)  
2505.2006.06.1.1  
1
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