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FAN5354MPX

更新时间： 2024-11-02 06:58:43
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 稳压器
页数 文件大小 规格书
14页 779K
描述
3MHz, 3A Synchronous Buck Regulator

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中文翻译

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FAN5354MPX 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Transferred零件包装代码：MLP
包装说明：3 X 3.50 MM, GREEN, MO-229WFED-2, MLP-12针数：12
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：5.71
其他特性：ALSO HAS CONTROL TECHNIQUE OF PFM, ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 4.95V模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：2.7 V
标称输入电压：5 VJESD-30 代码：R-PDSO-N12
JESD-609代码：e4长度：3.5 mm
湿度敏感等级：1功能数量：1
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：5.5 A
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC12,.12,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BUCK最大切换频率：3300 kHz
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

FAN5354MPX 数据手册

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May 2010  
FAN5354  
3MHz, 3A Synchronous Buck Regulator  
Description  
Features  
The FAN5354 is a step-down switching voltage regulator that  
delivers an adjustable output from an input voltage supply of  
ƒ 3MHz Fixed-Frequency Operation  
ƒ Best-in-Class Load Transient  
2.7V to 5.5V. Using  
a proprietary architecture with  
synchronous rectification, the FAN5354 is capable of  
delivering 3A at over 85% efficiency, while maintaining a  
very high efficiency of over 80% at load currents as low as  
2mA. The regulator operates at a nominal fixed frequency of  
3MHz, which reduces the value of the external components  
to 470nH for the output inductor and 10µF for the output  
capacitor. Additional output capacitance can be added to  
improve regulation during load transients without affecting  
stability and inductance up to 1.2µH may be used with  
additional output capacitance.  
ƒ 3A Output Current Capability  
ƒ 2.7V to 5.5V Input Voltage Range  
ƒ Adjustable Output Voltage: 0.8 to VIN•0.9  
ƒ PFM Mode for High Efficiency in Light Load (Forced PWM  
Available on MODE Pin)  
ƒ Minimum PFM Frequency Avoids Audible Noise  
ƒ 270µA Typical Quiescent Current in PFM Mode  
ƒ External Frequency Synchronization  
At moderate and light loads, pulse frequency modulation  
(PFM) is used to operate the device in power-save mode  
with a typical quiescent current of 270µA. Even with such a  
low quiescent current, the part exhibits excellent transient  
response during large load swings. At higher loads, the  
system automatically switches to fixed-frequency control,  
operating at 3MHz. In shutdown mode, the supply current  
drops below 1µA, reducing power consumption. PFM mode  
can be disabled if constant frequency is desired. To avoid  
audible noise, the regulator limits its minimum PFM  
frequency. The FAN5354 is available in 12-lead 3x3.5mm  
MLP package.  
ƒ Low Ripple Light-Load PFM Mode with Forced  
PWM Control  
ƒ Power Good Output  
ƒ Internal Soft-Start  
ƒ Input Under-Voltage Lockout (UVLO)  
ƒ Thermal Shutdown and Overload Protection  
ƒ 12-Lead 3x3.5mm MLP  
Applications  
ƒ Set-Top Box  
ƒ Hard Disk Drive  
ƒ Communications Cards  
ƒ DSP Power  
Figure 1. Typical Application  
Ordering Information  
Part Number  
Temperature Range  
Package  
Packing Method  
FAN5354MPX  
-40 to 85°C  
MLP-12, 3x3.5mm  
Tape and Reel  
© 2009 Fairchild Semiconductor Corporation  
FAN5354 • Rev. 1.0.4  
www.fairchildsemi.com  
1234567...14

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