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TPS5420DR PDF预览

TPS5420DR

更新时间： 2024-09-18 04:27:31
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输出元件输入元件
页数 文件大小 规格书
20页 464K
描述
2-A, WIDE INPUT RANGE, STEP-DOWN SWIFT CONVERTER

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中文翻译

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TPS5420DR 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：SOIC
包装说明：GREEN, PLASTIC, MS-012AA, SOIC-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.72Is Samacsys：N
其他特性：OUTPUT ADJUSTABLE DOWN TO 1.22V模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：36 V最小输入电压：5.5 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e4
长度：4.9 mm湿度敏感等级：2
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：5 A最大输出电压：31 V
最小输出电压：1.23 V封装主体材料：PLASTIC/EPOXY
封装代码：SOP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座面最大高度：1.75 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：500 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：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

TPS5420DR 数据手册

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TPS5420  
www.ti.com  
SLVS642A–APRIL 2006–REVISED AUGUST 2006  
2-A, WIDE INPUT RANGE, STEP-DOWN SWIFT™ CONVERTER  
FEATURES  
APPLICATIONS  
•
•
•
•
Consumer: Set-top Box, DVD, LCD Displays  
Industrial and Car Audio Power Supplies  
Battery Chargers, High Power LED Supply  
12-V/24-V Distributed Power Systems  
•
Wide Input Voltage Range: 5.5 V to 36 V  
•
Up to 2-A Continuous (3-A Peak) Output  
Current  
•
•
•
•
•
•
•
High Efficiency up to 95% Enabled by 110-mΩ  
Integrated MOSFET Switch  
DESCRIPTION  
Wide Output Voltage Range: Adjustable  
Down to 1.22 V with 1.5% Initial Accuracy  
As a member of the SWIFT™ family of DC/DC  
regulators, the TPS5420 is a high-output-current  
PWM converter that integrates a low resistance high  
side N-channel MOSFET. Included on the substrate  
with the listed features is a high performance voltage  
error amplifier that provides tight voltage regulation  
Internal Compensation Minimizes External  
Parts Count  
Fixed 500-kHz Switching Frequency for Small  
Filter Size  
accuracy  
under  
transient  
conditions;  
an  
Improved Line Regulation and Transient  
Response by Input Voltage Feed Forward  
undervoltage-lockout circuit to prevent start-up until  
the input voltage reaches 5.5 V; an internally set  
slow-start circuit to limit inrush currents; and a  
voltage feed-forward circuit to improve the transient  
response. Using the ENA pin, shutdown supply  
current is reduced to 18 µA typically. Other features  
include an active high enable, overcurrent protection  
and thermal shutdown. To reduce design complexity  
and external component count, the TPS5420  
feedback loop is internally compensated.  
System Protected by Overcurrent Limiting  
and Thermal Shutdown  
–40°C to 125°C Operating Junction  
Temperature Range  
•
•
Available in Small 8-Pin SOIC Package  
For SWIFT Documentation, Application Notes  
and Design Software, See the TI Website at  
www.ti.com/swift  
The TPS5420 device is available in an easy to use  
8-pin SOIC package. TI provides evaluation modules  
and the SWIFT™ Designer software tool to aid in  
quickly achieving high-performance power supply  
designs to meet aggressive equipment development  
cycles.  
SIMPLIFIED SCHEMATIC  
Efficiency vs Output Current  
100  
95  
VIN  
VOUT  
VIN  
PH  
TPS5420  
90  
85  
80  
75  
70  
65  
60  
BOOT  
NC  
NC  
VI = 12 V  
VSENSE  
ENA  
GND  
55  
50  
0
0.5  
1
1.5  
2
2.5  
3
I
− Output Current− A  
O
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.  
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 © 2006, Texas Instruments Incorporated  
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TPS5420DR 替代型号

型号 品牌 替代类型 描述 数据表
TPS5420DRG4 TI

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 2-A, WIDE INPUT RANGE, STEP-DOWN SWIFT CONVERTER
TPS5420DG4 TI

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 2-A, WIDE INPUT RANGE, STEP-DOWN SWIFT CONVERTER
TPS5420D TI

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 2-A, WIDE INPUT RANGE, STEP-DOWN SWIFT CONVERTER

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