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TPS54428DRCR PDF预览

TPS54428DRCR

更新时间： 2024-02-08 05:46:02
品牌 Logo 应用领域
德州仪器 - TI 开关控制器开关式稳压器开关式控制器电源电路转换器开关式稳压器或控制器
页数 文件大小 规格书
22页 844K
描述
具有 Eco-Mode™ 的 4.5V 至 18V 输入、4A SWIFT™ 同步降压转换器 | DRC | 10 | -40 to 85

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TPS54428DRCR 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：HLSOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.69其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.76 TO 7V
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：18 V
最小输入电压：4.5 V标称输入电压：12 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：85 °C最低工作温度：-40 °C
最大输出电流：6.8 A最大输出电压：7 V
最小输出电压：0.76 V标称输出电压：5.5 V
封装主体材料：PLASTIC/EPOXY封装代码：HLSOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.7 mm
子类别：Switching Regulator or Controllers最大供电电流 (Isup)：1.4 mA
标称供电电压 (Vsup)：12 V表面贴装：YES
切换器配置：BUCK最大切换频率：650 kHz
温度等级：INDUSTRIAL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 mmBase Number Matches：1

TPS54428DRCR 数据手册

 浏览型号TPS54428DRCR的Datasheet PDF文件第2页浏览型号TPS54428DRCR的Datasheet PDF文件第3页浏览型号TPS54428DRCR的Datasheet PDF文件第4页浏览型号TPS54428DRCR的Datasheet PDF文件第5页浏览型号TPS54428DRCR的Datasheet PDF文件第6页浏览型号TPS54428DRCR的Datasheet PDF文件第7页 
TPS54428  
www.ti.com  
SLVSB42A –NOVEMBER 2011–REVISED JANUARY 2012  
4.5V to 18 V Input, 4-A Synchronous Step-Down SWIFT™ Converter with Eco-Mode™  
Check for Samples: TPS54428  
1
FEATURES  
DESCRIPTION  
The TPS54428 is an adaptive on-time D-CAP2™  
mode synchronous buck converter.  
23  
•
D-CAP2™ Mode Enables Fast Transient  
Response  
The TPS54428 enables system designers to  
complete the suite of various end-equipment power  
bus regulators with a cost effective, low component  
count, low standby current solution.  
•
Low Output Ripple and Allows Ceramic Output  
Capacitor  
•
•
•
Wide VIN Input Voltage Range: 4.5 V to 18 V  
Output Voltage Range: 0.76 V to 7.0 V  
The main control loop for the TPS54428 uses the  
D-CAP2™ mode control that provides a fast transient  
Highly Efficient Integrated FETs Optimized  
for Lower Duty Cycle Applications  
– 70 mΩ (High Side) and 53 mΩ (Low Side)  
response  
with  
no  
external  
compensation  
components.  
•
•
•
•
•
•
•
High Efficiency, Less Than 10 μA at Shutdown  
High Initial Bandgap Reference Accuracy  
Adjustable Soft Start  
The adaptive on-time control supports seamless  
transition between PWM mode at higher load  
conditions and Eco-mode™ operation at light loads.  
Pre-Biased Soft Start  
Eco-mode™ allows the TPS54428 to maintain high  
efficiency during lighter load conditions.  
650-kHz Switching Frequency (fSW  
)
Cycle By Cycle Over Current Limit  
The TPS54428 also has a proprietary circuit that  
enables the device to adopt to both low equivalent  
series resistance (ESR) output capacitors, such as  
POSCAP or SP-CAP, and ultra-low ESR ceramic  
capacitors. The device operates from 4.5-V to 18 V  
VIN input.  
Auto-Skip Eco-mode™ for High Efficiency at  
Light Load  
APPLICATIONS  
•
Wide Range of Applications for Low Voltage  
System  
The output voltage can be programmed between  
0.76 V and 7.0 V.  
–
–
–
–
Digital TV Power Supply  
The device also features an adjustable soft start time.  
High Definition Blu-ray Disc™ Players  
Networking Home Terminal  
Digital Set Top Box (STB)  
The TPS54428 is available in the 8-pin DDA  
package,and designed to operate from –40°C to  
85°C.  
.
Vout(50mV/div)  
TPS54428DDA  
Iout(2A/div)  
100us/div  
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
3
D-CAP2 is a trademark of Texas Instruments.  
Blu-ray Disc is a trademark of Blu-ray Disc Association.  
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 © 2011–2012, Texas Instruments Incorporated  
 
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