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FAN5355UC03X PDF预览

FAN5355UC03X

更新时间： 2024-11-07 03:03:11
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 稳压器
页数 文件大小 规格书
27页 1995K
描述
1A / 0.8A, 3MHz Digitally Programmable TinyBuckTM Regulator

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中文翻译

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FAN5355UC03X 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：CSP
包装说明：VFBGA, BGA12,3X4,20针数：12
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：5.8
其他特性：OPERATES IN ADJUSTABLE MODE FROM 0.75V TO 1.5375V, ALSO HAS A CONTROL TECHNIQUE OF PFM模拟集成电路 - 其他类型：SWITCHING CONTROLLER
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：3.6 VJESD-30 代码：R-PBGA-B12
JESD-609代码：e1长度：2.21 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：1.8 A
封装主体材料：PLASTIC/EPOXY封装代码：VFBGA
封装等效代码：BGA12,3X4,20封装形状：RECTANGULAR
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.625 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：3350 kHz
温度等级：INDUSTRIAL端子面层：Tin/Silver/Copper (Sn/Ag/Cu)
端子形式：BALL端子节距：0.5 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：1.44 mm

FAN5355UC03X 数据手册

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March 2008  
FAN5355  
1A / 0.8A, 3MHz Digitally Programmable TinyBuckTM Regulator  
Features  
Description  
The FAN5355 device is a high-frequency, ultra-fast transient  
response, synchronous step-down DC-DC converter  
optimized for low-power applications using small, low-cost  
inductors and capacitors. The FAN5355 supports up to  
800mA or 1A(1) load current.  
ƒ 91% Efficiency at 3MHz  
ƒ 800mA or 1A Output Current(1)  
ƒ 2.7V to 5.5V Input Voltage Range  
ƒ 6 or 7-bit VOUT Programmable from 0.75 to 1.975V  
ƒ 3MHz Fixed-Frequency Operation  
ƒ Excellent Load and Line Transient Response  
ƒ Small Size, 1μH Inductor Solution  
ƒ ±2% PWM DC Voltage Accuracy  
ƒ 35ns Minimum On-Time  
The device is ideal for mobile phones and similar portable  
applications powered by a single-cell Lithium-Ion battery. With  
an output voltage range adjustable via I2C™ interface from  
0.75V to 1.975V, the device supports low-voltage DSPs and  
processors, core power supplies in smart phones, PDAs, and  
handheld computers.  
The FAN5355 operates at 3MHz (nominal) fixed switching  
frequency using either its internal oscillator or external SYNC  
frequency.  
ƒ High-Efficiency, Low-Ripple, Light-Load PFM  
ƒ Smooth Transition between PWM and PFM  
ƒ 37μA Operating PFM Quiescent Current  
During light-load conditions, the regulator includes a PFM  
mode to enhance light-load efficiency. The regulator  
transitions smoothly between PWM and PFM modes with no  
glitches on VOUT. Normal PFM (NPFM) mode offers the lowest  
quiescent current, at the expense of setpoint accuracy.  
Enhanced PFM (EPFM) mode features higher accuracy, as  
well as a 25kHz minimum PFM frequency, designed to  
prevent the regulator from operating in the audible range. In  
shutdown, the current consumption is reduced to less than  
2μA, using software shutdown (EN = 1 with EN_DCDC = 0),  
and less than 200nA in hardware shutdown (EN = 0).  
ƒ Software Selectable 25kHz Minimum PFM Frequency  
Prevents Audible Noise in PFM Mode  
ƒ I2C™-Compatible Interface up to 3.4Mbps  
ƒ Pin-Selectable or I2C™ Programmable Output Voltage  
ƒ On-the-Fly External Clock Synchronization  
ƒ 10-lead MLP (3 x 3mm) or 12-bump CSP Packages  
The serial interface is compatible with Fast/Standard and  
High-Speed mode I2C specifications, allowing transfers up to  
3.4Mbps. This interface is used for dynamic voltage scaling  
with 12.5mV voltage steps, for reprogramming the mode of  
operation (PFM or Forced PWM), or to disable/enable the  
output voltage.  
Applications  
ƒ SmartReflex™-Compliant Power Supply  
ƒ Split Supply DSPs and μP Solutions OMAP™, XSCALE™  
ƒ Cell Phones, Smart Phones, PDAs, Digital Cameras, and  
Portable Media Players  
The chip's advanced protection features include short-circuit  
protection and current and temperature limits. During a  
sustained over-current event, the IC shuts down and restarts  
after a delay to reduce average power dissipation into a fault.  
ƒ Micro DC-DC Converter Modules  
ƒ Handset Graphic Processors (NVIDIA®, ATI)  
During start-up, the IC controls the output slew rate to  
minimize input current and output overshoot at the end of soft-  
start. The IC maintains a consistent soft-start ramp, regardless  
of output load during start-up.  
I2C is a trademark of Philips Corporation.  
SmartReflex and OMAP are trademarks of Texas Instruments.  
XSCALE is a trademark of Intel Corporation.  
The FAN5355 is available in 10-lead MLP (3x3mm) and  
12-bump CSP packages.  
NVIDIA is a registered trademark of NVIDIA Corporation.  
© 2008 Fairchild Semiconductor Corporation  
FAN5355 • Rev. 1.0.4  
www.fairchildsemi.com  
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中文翻译

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FAN5355UC03X 替代型号

型号 品牌 替代类型 描述 数据表
FAN5355UC00X FAIRCHILD

类似代替

 1A / 0.8A, 3MHz Digitally Programmable TinyBuckTM Regulator
FAN5355UC02X FAIRCHILD

功能相似

 1A / 0.8A, 3MHz Digitally Programmable TinyBuckTM Regulator

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