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TPS54262QPWPRQ1

更新时间： 2024-11-26 12:21:47
品牌 Logo 应用领域
德州仪器 - TI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管PC
页数 文件大小 规格书
44页 2608K
描述
2-A 60-V STEP-DOWN DC/DC CONVERTER WITH LOW QUIESCENT CURRENT

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TPS54262QPWPRQ1 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：HTSSOP-20针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.73Samacsys Confidence：
Samacsys Status：ReleasedSamacsys PartID：607784
Samacsys Pin Count：21Samacsys Part Category：Integrated Circuit
Samacsys Package Category：OtherSamacsys Footprint Name：SOP65P640X120-21N
Samacsys Released Date：2017-01-12 12:59:53Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
最大输入电压：48 V最小输入电压：3.6 V
标称输入电压：7 VJESD-30 代码：R-PDSO-G20
JESD-609代码：e4长度：6.5 mm
湿度敏感等级：3功能数量：1
端子数量：20最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：2 A
最大输出电压：18 V最小输出电压：0.9 V
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
筛选级别：AEC-Q100座面最大高度：1.2 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：2200 kHz温度等级：AUTOMOTIVE
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

TPS54262QPWPRQ1 数据手册

 浏览型号TPS54262QPWPRQ1的Datasheet PDF文件第2页浏览型号TPS54262QPWPRQ1的Datasheet PDF文件第3页浏览型号TPS54262QPWPRQ1的Datasheet PDF文件第4页浏览型号TPS54262QPWPRQ1的Datasheet PDF文件第5页浏览型号TPS54262QPWPRQ1的Datasheet PDF文件第6页浏览型号TPS54262QPWPRQ1的Datasheet PDF文件第7页 
TPS54262-Q1  
www.ti.com  
SLVS996C –SEPTEMBER 2009–REVISED JUNE 2010  
2-A 60-V STEP-DOWN DC/DC CONVERTER WITH LOW QUIESCENT CURRENT  
Check for Samples: TPS54262-Q1  
1
FEATURES  
•
Asynchronous Switch Mode Regulator  
•
Programmable Overvoltage, Undervoltage  
Output Monitor  
•
3.6 V to 48 V Operating Range, Withstands  
Transients up to 60 V  
•
•
•
Thermal Sensing and Shutdown  
Switch Current Limit Protection  
•
•
•
•
•
•
•
•
•
•
•
2 A Maximum Load Current  
50 µA Typical Quiescent Current  
Short Circuit and Overcurrent Protection of  
FET  
200 kHz to 2.2 MHz Switching Frequency  
0.8 V ± 1.5% Voltage Reference  
•
•
Junction Temperature Range: –40°C to 150°C  
20-Pin HTSSOP PowerPAD™ Package  
High Voltage Tolerant Enable Input  
Soft Start on Enable Cycle  
APPLICATIONS  
Slew Rate Control on Internal Power Switch  
Low-Power Mode for Light Load Conditions  
Programmable Delay for Power-On Reset  
External Compensation for Error Amplifier  
•
•
•
•
•
Qualified for Automotive Applications  
Automotive Telematics  
Navigation Systems  
In-Dash Instrumentation  
Reset Function Filter Time for Fast Negative  
Transients  
Battery Powered Applications  
DESCRIPTION  
The TPS54262 is a step-down switch-mode power supply with a voltage supervisor and an integrated NMOS  
switching FET. Integrated input voltage line feed forward topology improves line transient regulation of the  
voltage mode buck regulator. The regulator has a cycle-by-cycle current limit. The device also features  
low-power mode operation under light load conditions which reduces the supply current to 50 µA (typical). By  
pulling the EN pin low, the supply shutdown current is reduced to 1 µA (typical).  
An open drain reset signal indicates when the nominal output drops below the reset threshold set by an external  
resistor divider network. The output voltage start up ramp is controlled by a soft start capacitor. There is an  
internal undervoltage shut down which is activated when the input supply ramps down to 2.6 V. The device is  
protected during an overload condition on output by frequency foldback operation, and also has a thermal  
shutdown protection.  
TYPICAL APPLICATION  
TYPICAL CONVERTER EFFICIENCY  
D1  
TPS54262  
VReg  
VIN  
VIN  
EN  
VBATT  
R12  
C1  
R11  
R10  
RESET  
RST  
BOOT  
L
C3  
D2  
VReg  
C4  
PH  
LPM  
C7  
SYNC  
R4  
R5  
R7  
C6  
R9  
Rslew  
VSENSE  
SS  
C8  
C5  
R6  
R8  
C2  
COMP  
RT/CLK  
R1  
R2  
R3  
RST_TH  
Cdly  
GND  
OV_TH  
Figure 1.  
Figure 2.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2009–2010, Texas Instruments Incorporated  
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