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AAT2608INJ-1-T1

更新时间： 2024-01-13 02:04:13
品牌 Logo 应用领域
思佳讯 - SKYWORKS /
页数 文件大小 规格书
16页 2481K
描述
Analog Circuit, 1 Func, TQFN44-28

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AAT2608INJ-1-T1 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：TQFN44-28Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.08
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：S-XQCC-N28
长度：4 mm功能数量：1
端子数量：28最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
座面最大高度：0.8 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.4 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

AAT2608INJ-1-T1 数据手册

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DATA SHEET  
AAT2608  
Single 800mA Switching Converter and Eight-Channel 300mA LDO Regulator  
General Description  
Features  
•
The AAT2608 is a member of Skyworks' Total Power  
Management IC (TPMIC™) product family. It contains an  
800mA switching regulator and eight fully integrated  
300mA low dropout (LDO) regulators in a small, Pb-free  
28-pin 4mmx4mm TQFN package, making it ideal for  
space-constrained systems.  
2.7V to 5.5V Operating Input Voltage Range  
• Factory Programmable Outputs from 0.6V to 3.7V  
• 800mA Monolithic Switching Converter  
• 1.5MHz Switching Frequency  
• 90% Efficiency  
• 70µA Quiescent Current  
• Independent Input Power and Ground  
• Independent Enable  
• ±1% Typical Accuracy  
• 8 Channel 300mA LDO Regulators  
• 250mV Dropout Voltage at 250mA  
• Low 30µA Quiescent Current  
• High PSRR (68dB @10KHZ)  
• Independent Enable  
• ±1% Typical Accuracy  
• Over-Current Protection  
• Over-Thermal Protection  
• 4mmx4mm, 0.4mm Lead Pitch, 28-pin TQFN Package  
The step-down converter is a monolithic synchronous  
converter with an integrated compensation network and  
90% efficiency. It operates at 1.5MHz and uses a tiny  
2.2µH inductor with a small 10µF output capacitor. At no  
load the switching converter quiescent current is 70µA.  
The 8 channel 300mA LDO regulator features low power  
consumption, low dropout, and high noise immunity  
from the input power supply. Each channel consumes a  
mere 30µA of current when enabled, features 250mV of  
dropout at 250mA, and 68dB of power supply rejection  
at 10kHz. Each channel uses a small 1µF output capaci-  
tor and 2.2µF input capacitor. All regulators include a  
separate enable, providing a convenient solution to  
implement any power-up and power-down sequencing.  
All output voltages are factory One Time Programmable  
(OTP) between 0.6V and 3.7V with 100mV increment  
and typical regulation accuracy is ±1%. The switcher has  
a separate input from the linear regulators, permitting  
post-regulation configuration of the LDO channels from  
the switcher’s output. Its output is externally program-  
mable with external resistors. LDO1 and LDO2 share the  
same input voltage, as do LDO3 and LDO4, while LDO5  
through LDO8 have their own independent input.  
Applications  
•
•
•
•
Cellular Application  
Handheld Products  
Media Players (MP4 Players)  
Portable Navigation Devices (PNDs)  
The AAT2608 is a safe solution which integrates an over-  
current limit for each channel and over-thermal protec-  
tion. The device is rated over a temperature range of  
-40°C to 85°C.  
Typical Application  
VCC  
U1  
Efficiency vs. Output Current  
C7  
AAT2608_TQFN44-28  
L1 2.2µH  
(Buck VOUT = 1.2V)  
2.2µF  
VINBUCK  
C1  
VCC  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
ENBUCK  
VINBUCK  
VIN34  
LX  
C17  
1µF  
R11  
R12  
FBBUCK  
VIN34  
10µF  
C16  
10µF  
C2  
AAT2608  
2.2µF  
VIN8  
LDO1  
VIN8  
LDO1  
LDO8  
C15  
1µF  
C6  
2.2µF  
VIN = 2.7V  
IN = 3.6V  
VIN = 4.2V  
IN = 5.5V  
ENLD1  
ENLD0  
V
LDO8  
C8  
1µF  
VCC  
V
PGND AGND  
0.1  
1
10  
100  
1000  
Output Current (mA)  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
1
202206A  
• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 25, 2012  
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