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TPS51427ARHBTG4 PDF预览

TPS51427ARHBTG4

更新时间： 2024-09-13 12:16:15
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
42页 2275K
描述
DUAL D-CAP™ SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER RAILS

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中文翻译

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TPS51427ARHBTG4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFN
包装说明：HVQCCN, LCC32,.2SQ,20针数：32
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.23
Is Samacsys：N其他特性：ALSO OPERATES AT 5V, OPERATES IN ADJUSTABLE MODE FROM 0.7V TO 4.5V
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：4.5 V标称输入电压：5 V
JESD-30 代码：S-PQCC-N32JESD-609代码：e4
长度：5 mm湿度敏感等级：2
功能数量：1端子数量：32
最高工作温度：85 °C最低工作温度：-40 °C
标称输出电压：3.3 V封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC32,.2SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
温度等级：INDUSTRIAL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处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：5 mmBase Number Matches：1

TPS51427ARHBTG4 数据手册

 浏览型号TPS51427ARHBTG4的Datasheet PDF文件第2页浏览型号TPS51427ARHBTG4的Datasheet PDF文件第3页浏览型号TPS51427ARHBTG4的Datasheet PDF文件第4页浏览型号TPS51427ARHBTG4的Datasheet PDF文件第5页浏览型号TPS51427ARHBTG4的Datasheet PDF文件第6页浏览型号TPS51427ARHBTG4的Datasheet PDF文件第7页 
TPS51427A  
www.ti.com .................................................................................................................................................. SLUS843B–MAY 2008–REVISED SEPTEMBER 2008  
DUAL D-CAP™ SYNCHRONOUS STEP-DOWN CONTROLLER  
FOR NOTEBOOK POWER RAILS  
1
FEATURES  
DESCRIPTION  
23  
•
Fixed-Frequency Emulated On-Time Control;  
Frequency Selectable from Three Options  
The TPS51427A is a dual synchronous step-down  
controller designed for notebook and mobile  
communications applications. This device is part of a  
low-cost suite of notebook power bus regulators that  
enables system designs with low external component  
•
•
D-CAP™ Mode Enables Fast Transient  
Response Less than 100 ns  
Advanced Ramp Compensation Allows Low  
Output Ripple with Minimal Jitter  
counts.  
The  
TPS51427A  
includes  
two  
pulse-width-modulation (PWM) controllers, SMPS1  
and SMPS2. The output of SMPS1 can be adjusted  
from 0.7 V to 5.9 V, while the output of SMPS2 can  
be adjusted from 0.5 V to 2.5 V. This device also  
features a low-dropout (LDO) regulator that provides  
a 5-V/3.3-V output, or adjustable from 0.7-V to 4.5-V  
output via LDOREFIN. The fixed-frequency emulated  
adaptive on-time control supports seamless operation  
between PWM mode under heavy load conditions  
and reduced frequency operation at light loads for  
high-efficiency down to the milliampere range. An  
integrated boost switch enhances the high-side  
MOSFET to further improve efficiency. The main  
control loop is the D-CAP™ mode that is optimized  
for low equivalent series resistance (ESR) output  
capacitors such as POSCAP or SP-CAP. Advanced  
ramp compensation minimizes jitter without degrading  
line and load regulation. RDS(on) current sensing  
methods offers maximum cost saving.  
•
•
•
Selectable PWM-Only/OOA™/Auto-Skip Modes  
Wide Input Voltage Range: 5.5 V to 28 V  
Dual Fixed or Adjustable SMPS:  
–
–
0.7 V to 5.9 V (Channel1)  
0.5 V to 2.5 V (Channel2)  
•
•
•
•
Fixed 3.3-V/5-V, or Adjustable Output 0.7-V to  
4.5-V LDO; Capable of Sourcing 100 mA  
Fixed 3.3-VREF Output Capable of Sourcing  
10 mA  
Temperature Compensated Low-Side RDS(on)  
Current Sensing  
Adaptive Gate Drivers with Integrated Boost  
Switch  
•
•
•
•
Bootstrap Charge Auto Refresh  
Integrated Soft Start, Tracking Soft Stop  
Independent PGOOD and EN for Each Channel  
The TPS51427A supports supply input voltages that  
range from 5.5 V to 28 V. It is available in the 32-pin,  
OOB Function Disabled. Refer to TPS51427 for  
OOB-Enabled Device  
5-mm  
×
5-mm QFN package (Green, RoHs-  
compliant, and Pb-free). The device is specified from  
–40°C to +85°C.  
APPLICATIONS  
•
•
•
Notebook I/O and System Bus Rails  
Graphics Application  
PDAs and Mobile Communication Devices  
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-CAP, OOA are trademarks of Texas Instruments.  
All other trademarks are the property of their respective owners.  
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 © 2008, Texas Instruments Incorporated  
1234567...42

中文翻译

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TPS51427ARHBTG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS51427ARHBT TI

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