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SP3406S25RGB PDF预览

SP3406S25RGB

更新时间: 2024-11-06 12:48:51
品牌 Logo 应用领域
擎力 - SYNC-POWER 转换器
页数 文件大小 规格书
6页 154K
描述
600mA Buck Converter

SP3406S25RGB 数据手册

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SP3406  
600mA Buck Converter  
DESCRIPTION  
SP3406 is a high efficiency monolithic  
APPLICATIONS  
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Digital Camera  
PDA  
synchronous buck regulator using a constant  
frequency, current mode architecture. The device  
is available in an adjustable version and fixed  
output voltages, such as 1.5V,1.8V,etc. Supply  
current with no load is 30uA and drops to <1uA in  
shutdown. The 2.5 to 6.5V input voltage range  
makes the SP3406 ideally suitable for single  
Li-Ion, two to four AA battery-powered  
Hand Held Communication Equipment  
Wireless and DSL Modems  
Portable instrument  
Microprocessor and DSP Core Supplies  
MID or UPMC  
applications. In low dropout operation mode, the  
duty cycle can reach to 100%, extending battery  
life in portable systems. PWM pulse skipping mode  
operation provides very low output ripple voltage  
for noise sensitive applications. Switching  
frequency is internally set at 1.5MHz, allowing the  
use of small surface mount inductors and  
capacitors. The internal synchronous switch  
increases efficiency and eliminates the need for an  
external Schottky diode. Low output voltages are  
easily supported with the 0.6V feedback reference  
voltage. The SP 3406 is available in a small  
SOT-23-5 package.  
FEATURES  
PIN CONFIGURATION ( SOT-23-5L)  
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High Efficiency: Up to 96%;  
1.5MHz Constant Switching Frequency;  
600mA Output Current at Vin=3V;  
Integrated Main Switch and Synchronous  
Rectifier, No Schottky Diode Required;  
2.5 to 6.5V input voltage;  
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Output Voltage as Low as 0.6V;  
100% Duty Cycle in Dropout;  
Quiescent Current: 30uA(input<4.2V);  
Slope Compensated Current Mode Control for  
Excellent Line and Load Transient Response;  
Short Circuit Protection and Thermal Fault  
Protection;  
PART MARKING  
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<1uA Shutdown Current;  
Soft Start;  
2012/11/15 V. 1  
Page 1  

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