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TPS54218ARTER PDF预览

TPS54218ARTER

更新时间： 2024-11-20 13:14:51
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
37页 1401K
描述
SWITCHING REGULATOR, 2000kHz SWITCHING FREQ-MAX, PQCC16

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TPS54218ARTER 技术参数

是否Rohs认证：符合生命周期：Obsolete
包装说明：3 X 3 MM, PLASTIC, QFN-16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.71
Is Samacsys：N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：6 V最小输入电压：2.95 V
标称输入电压：5 VJESD-30 代码：S-PQCC-N16
JESD-609代码：e4长度：3 mm
湿度敏感等级：2功能数量：1
端子数量：16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座面最大高度：0.8 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：2000 kHz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：QUAD宽度：3 mm
Base Number Matches：1

TPS54218ARTER 数据手册

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TPS54218  
www.ti.com  
SLVS974A –SEPTEMBER 2009–REVISED AUGUST 2012  
2.95 V to 6 V Input, 2 A Output, 2MHz, Synchronous Step Down  
Switcher With Integrated FETs ( SWIFT™)  
Check for Samples: TPS54218  
1
FEATURES  
DESCRIPTION  
The TPS54218 device is a full featured 6 V, 2 A,  
synchronous step down current mode converter with  
two integrated MOSFETs.  
2
•
Two 30 mΩ (typical) MOSFETs for High  
Efficiency at 2 A loads  
•
•
200kHz to 2MHz Switching Frequency  
The TPS54218 enables small designs by integrating  
the MOSFETs, implementing current mode control to  
reduce external component count, reducing inductor  
size by enabling up to 2 MHz switching frequency,  
and minimizing the IC footprint with a small 3mm x  
3mm thermally enhanced QFN package.  
0.8 V ± 1% Voltage Reference Over  
Temperature  
•
•
•
•
Synchronizes to External Clock  
Adjustable Slow Start/Sequencing  
UV and OV Power Good Output  
The TPS54218 provides accurate regulation for a  
variety of loads with an accurate ±1% Voltage  
Reference (Vref) over temperature.  
Low Operating and Shutdown Quiescent  
Current  
•
•
Safe Start-up into Pre-Biased Output  
Efficiency is maximized through the integrated 30mΩ  
MOSFETs and 350μA typical supply current. Using  
the enable pin, shutdown supply current is reduced to  
2 μA by entering a shutdown mode.  
Cycle by Cycle Current Limit, Thermal and  
Frequency Fold Back Protection  
•
•
–40°C to 150°C Operating Junction  
Temperature Range  
Undervoltage lockout is internally set at 2.6 V, but  
can be increased by programming the threshold with  
a resistor network on the enable pin. The output  
voltage startup ramp is controlled by the slow start  
pin. An open drain power good signal indicates the  
output is within 93% to 107% of its nominal voltage.  
Thermally Enhanced 3mm × 3mm 16-pin QFN  
APPLICATIONS  
•
•
Low-Voltage, High-Density Power Systems  
Point of Load Regulation for High Performance  
DSPs, FPGAs, ASICs and Microprocessors  
Frequency fold back and thermal shutdown protects  
the device during an overcurrent condition.  
The TPS54218 is supported in the SwitcherProTM  
Software Tool at www.ti.com/switcherpro.  
•
Broadband, Networking and Optical  
Communications Infrastructure  
SIMPLIFIED SCHEMATIC  
For more SWIFTTM documentation, see the TI  
website at www.ti.com/swift.  
VIN  
C
BOOT  
VIN  
BOOT  
100  
95  
90  
85  
80  
75  
70  
R4  
R5  
C
I
TPS54218  
L
O
VOUT  
EN  
PH  
C
O
R
1
PWRGD  
VSENSE  
SS  
RT /CLK  
COMP  
GND  
65  
V = 5 V,  
I
R
2
AGND  
60  
55  
50  
V
F
= 1.8 V,  
C
POWERPAD  
ss  
O
= 1000 kHz  
S
R
R
T
3
C
1
0
0.25 0.5  
0.75  
1
- Output Current - A  
1.25 1.5  
1.75  
2
I
O
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.  
SWIFT is a trademark of Texas Instruments.  
2
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 © 2009–2012, Texas Instruments Incorporated  
1234567...37

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