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XC9237C2CCML

更新时间： 2024-02-19 06:40:03
品牌 Logo 应用领域
特瑞仕 - TOREX 转换器驱动
页数 文件大小 规格书
28页 761K
描述
600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters

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XC9237C2CCML 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：TSOP, TSOP5/6,.11,37Reach Compliance Code：compliant
风险等级：5.77控制模式：CURRENT-MODE
JESD-30 代码：R-PDSO-G5JESD-609代码：e3
湿度敏感等级：1端子数量：5
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.6 A封装主体材料：PLASTIC/EPOXY
封装代码：TSOP封装等效代码：TSOP5/6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE
认证状态：Not Qualified子类别：Switching Regulator or Controllers
表面贴装：YES最大切换频率：3450 kHz
温度等级：INDUSTRIAL端子面层：Tin (Sn)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUALBase Number Matches：1

XC9237C2CCML 数据手册

 浏览型号XC9237C2CCML的Datasheet PDF文件第2页浏览型号XC9237C2CCML的Datasheet PDF文件第3页浏览型号XC9237C2CCML的Datasheet PDF文件第4页浏览型号XC9237C2CCML的Datasheet PDF文件第5页浏览型号XC9237C2CCML的Datasheet PDF文件第6页浏览型号XC9237C2CCML的Datasheet PDF文件第7页 
XC9235/XC9236/XC9237Series  
ETR0514-007  
600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters  
☆GreenOperation Compatible  
■GENERAL DESCRIPTION  
The XC9235/XC9236/XC9237 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42Ω  
P-channel driver transistor and 0.52ΩN-channel switching transistor, designed to allow the use of ceramic capacitors. The ICs  
enable a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two  
capacitors connected externally. Operating voltage range is from 2.0V to 6.0V. Output voltage is internally set in a range from  
0.8V to 4.0V in increments of 50mV (accuracy: ±2.0%). With the built-in oscillator, ether 1.2MHz or 3.0MHz can be selected  
for suiting to your particular application. As for operation mode, the XC9235 series is PWM control, the XC9236 series is  
automatic PWM/PFM switching control and the XC9237 series can be manually switched between the PWM control mode and  
the automatic PWM/PFM switching control mode, allowing fast response, low ripple and high efficiency over the full range of  
loads (from light load to heavy load).  
The soft start and current control functions are internally optimized. During stand-by, all circuits are shutdown to reduce  
current consumption to as low as 1.0μA or less. With the built-in UVLO (Under Voltage Lock Out) function, the internal  
P-channel driver transistor is forced OFF when input voltage becomes 1.4V or lower.  
The XC9235B/XC9236B/XC9237B series provide short-time turn-on by the soft start function internally set in 0.25 ms (TYP).  
The XC9235B(C)/XC9236B(C)/XC9237B(C) integrate CL auto discharge function which enables the electric charge at the output  
capacitor CL to be discharged via the internal auto-discharge switch located between the LX and VSS pins. When the devices  
enter stand-by mode, output voltage quickly returns to the VSS level as a result of this function.  
Two types of package SOT-25 and USP-6C are available.  
■FEATURES  
■APPLICATIONS  
●Mobile phones  
●Bluetooth equipment  
P-ch Driver Transistor Built-In : ON resistance 0.42Ω  
N-ch Driver Transistor Built-In : ON resistance 0.52Ω  
Input Voltage  
: 2.0V ~ 6.0V  
●PDAs, portable communication modem  
●Portable games  
Output Voltage  
: 0.8V ~ 4.0V  
High Efficiency  
: 92% (TYP.)  
●Digital cameras, video cameras  
●Cordless phones  
Output Current  
: 600mA  
Oscillation Frequency  
Maximum Duty Cycle  
Control Methods  
: 1.2MHz, 3.0MHz (+15%)  
: 100%  
●Notebook computers  
: PWM (XC9235)  
PWM/PFM Auto (XC9236)  
PWM/PFM Manual (XC9237)  
Soft-Start Circuit Built-In  
Current Limiter Circuit Built-In (Constant Current & Latching)  
Low ESR Ceramic Capacitor Compatible  
Packages  
: SOT-25, USP-6C  
CL High Speed Discharge  
（XC9235B(C)/XC9236B(C)/XC9237B(C) Series）  
High Speed Soft Start  
（XC9235B/XC9236B/XC9237B Series）  
* Performance depends on external components and wiring on the PCB.  
■TYPICAL APPLICATION CIRCUIT  
■TYPICAL PERFORMANCE  
CHARACTERISTICS  
●Efficiency vs. Output Current（FOSC=1.2NHz, VOUT=1.8V）  
PWM/PFM Automatic Sw itching Control  
100  
90  
80  
VIN= 4.2V  
70  
PWM Control  
VIN= 4.2V  
3.6V  
2.4V  
60  
50  
40  
30  
20  
10  
0
3.6V  
2.4V  
0.1  
1
10  
100  
1000  
Output Current:IOUT(mA)  
1/28  
1234567...28

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