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TPS54620RHL PDF预览

TPS54620RHL

更新时间： 2024-09-19 13:14:51
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
39页 1716K
描述
IC SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14, 3.50 X 3.50 MM, PLASTIC, QFN-14, Switching Regulator or Controller

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TPS54620RHL 技术参数

生命周期：Obsolete零件包装代码：QFN
包装说明：HVQCCN,针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.17
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：17 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：S-PQCC-N14长度：3.5 mm
功能数量：1端子数量：14
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：Not Qualified座面最大高度：1 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：1760 kHz端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：3.5 mmBase Number Matches：1

TPS54620RHL 数据手册

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TPS54620  
www.ti.com ........................................................................................................................................................................................................ SLVS949–MAY 2009  
17V Input, 6A Output, Synchronous Step Down Switcher  
With Integrated FET in 3.5mm x 3.5mm Package(SWIFT™)  
1
FEATURES  
•
Power Good Output Monitor for Undervoltage  
& Overvoltage  
2
•
Integrated 26mΩ / 19mΩ MOSFETs  
•
•
•
Adjustable Input Undervoltage Lockout  
Supported by SwitcherPro™ Software Tool  
•
•
•
•
•
•
•
Split Power Rail: 1.6V to 17V on PVIN  
200kHz to 1.6MHz Switching Frequency  
Synchronizes to External Clock  
For SWIFT™ Documentation and  
SwitcherPro™, visit http://www.ti.com/swift  
0.8V ±1% Voltage Reference Over Temperature  
Low 2uA Shutdown Quiscent Current  
Monotonic Start-Up into Prebiased Outputs  
APPLICATIONS  
•
•
•
High Density Distributed Power Systems  
High Peformance Point of Load Regulation  
Broadband, Networking and Optical  
Communications Infrastructure  
–40°C to 150°C Operating Junction  
Temperature Range  
•
Adjustable Slow Start/Power Sequencing  
DESCRIPTION  
The TPS54620 in thermally enhanced 3.5mm x 3.5mm QFN package is a full featured 17V, 6A synchronous step  
down converter which is optimized for small designs through high efficiency and integrating the high-side and  
low-side MOSFETs. Further space savings are achieved through current mode control, which reduces  
component count, and by selecting a high switching frequency, reducing the inductor's footprint.  
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone  
power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and  
the open drain power good pins.  
Cycle by cycle current limiting on the high-side fet protects the device in overload situations and is enhanced by  
a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit  
which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part  
when die temperature rises too high.  
WHITE SPACE  
SIMPLIFIED SCHEMATIC  
100  
8 V  
PVIN  
VIN  
95  
VIN  
Cboot  
TPS54620  
BOOT  
90  
85  
Cin  
17 V  
12 V  
VOUT  
Lo  
80  
75  
70  
EN  
PH  
Co  
PWRGD  
R1  
VSENSE  
SS/TR  
RT/CLK  
COMP  
65  
60  
R2  
VOUT = 3.3 V  
Fsw = 480 kHz  
GND  
PowerPAD  
R3  
C1  
55  
50  
Css  
Rrt C2  
0
1
2
3
4
5
6
Load Current - A  
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.  
2
SWIFT, PowerPAD are trademarks of Texas Instruments.  
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, Texas Instruments Incorporated  
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