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AAT2610_12

更新时间： 2024-01-26 15:56:25
品牌 Logo 应用领域
思佳讯 - SKYWORKS /
页数 文件大小 规格书
31页 5033K
描述
Seven-Channel PMU for Digital Still Cameras

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AAT2610_12 数据手册

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DATA SHEET  
AAT2610  
Seven-Channel PMU for Digital Still Cameras  
General Description  
Features  
•
•
The AAT2610 is a highly integrated power management  
solution specifically suited for Digital Still Camera (DSC)  
systems, featuring seven DC-DC switching regulators for  
maximum operating efficiency.  
Input Voltage Range 1.6 to 5.5V  
1-Cell Li-ion, 2-Cell Alkaline  
Adapter or USB Inputs  
▪
▪
7 Channel up to 96% High Efficiency DC/DCs  
Adjustable Output  
4 Channel Synchronous Rectification  
Light Load Mode for High Efficiency  
▪
The input operating voltage range is 1.6 to 5.5V, making  
the device an ideal solution for 1-cell Li-ion batteries,  
2-cell alkaline batteries, and USB and regulated AC-DC  
wall adapters. All seven DC-DC switching regulators fea-  
ture high efficiency light load operating mode to extend  
battery life while in low power standby state.  
▪
▪
•
•
<1µA Total Quiescient Current  
Current Mode Control  
Fast, Stable Transient Response  
No External Compensation  
Current Limit for Internal MOSFET Protection  
▪
▪
Three different DC-DC building blocks provide maximum  
design flexibility: a boost (step-up) DC-DC controller  
with an output voltage range of 3.0V to 5.5V and a cur-  
rent mode control buck (step-down) or boost (step-up)  
DC-DC controller with an output voltage range of 2.5V to  
the step-up converter (SU) output voltage and buck out-  
put range of 0.6V to VIN. Dual current mode control syn-  
chronous buck regulators provide low voltage, low noise  
outputs required for system logic and memory. Output  
voltage range is 0.6V to VIN. The Auxiliary 1 boost (step-  
up) is ideally suited for LCD backlight and can drive 1-6  
white LEDs up to a maximum of 30mA with ±10% accu-  
racy. PWM input controls LED dimming across the fre-  
quency range from 10% to 100% duty cycle. The inte-  
grated OVP and SCF feature protects the device from  
open-circuit LED conditions.  
▪
•
•
High Frequency 1.5MHz System Clock  
High Voltage Series LED Driver  
1 to 6 White LEDs  
Up to Maximum 30mA LED Current  
External Schottky Diode  
±10% Accuracy Current Sink  
Integrated OVP  
PWM Dimming: 1k to 30kHz, 10 to 100% Duty  
Cycle  
▪
▪
▪
▪
▪
▪
•
•
Step-Up and Inverting Outputs for CCD  
Low Noise Outputs  
Transformerless Inverter Output  
Flexible Sequencing Implementation  
Independent Enable Control  
10ms Pre-Programmed Buck or Boost Delay  
Integrated Soft-Start  
Over-Voltage and Over-Temperature Protection  
Pb-free TQFN55-40L Package  
▪
▪
▪
▪
•
•
•
•
The Auxiliary 2 boost (step-up) and Auxiliary 3 buck-  
boost (inverting) output provide low noise (≤30mVpp)  
+15V and -7.5V outputs for CCD loads. An expensive  
transformer is not required.  
Temperature Range: -40°C to +85°C  
No external MOSFETs and low profile TQFN55-40L pack-  
age are ideal to save space for DSC solution. Integrated,  
low RDS(ON) power MOSFETs provide output voltages from  
0.6V to 16VDC and an inverting output up to -10V. The  
high switching frequency ensures small external filtering  
components. Internal compensation is provided for opti-  
mum transient performance and minimum application  
design effort.  
Applications  
•
•
•
DSCs and DVCs  
MP3 Players  
PMP  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
1
202208A  
• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 25, 2012  
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