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TPS54312-EP

更新时间： 2024-11-09 11:06:35
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
21页 731K
描述
具有集成 FET 的增强型产品 3V 至 6V 输入、3A 输出、同步降压 PWM 转换开关

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TPS54312-EP 数据手册

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TPS54311-EP, TPS54312-EP,  
TPS54313-EP, TPS54314-EP,  
(
6
,
3
m
m
x
6
,
4
m
m
)
TPS54315-EP, TPS54316-EP  
www.ti.com  
SGLS376A–FEBRUARY 2007–REVISED MARCH 2007  
3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM  
SWITCHER WITH INTEGRATED FETs (SWIFT™)  
FEATURES  
•
Controlled Baseline  
APPLICATIONS  
•
Low-Voltage, High-Density Systems With  
Power Distributed at 5 V or 3.3 V  
–
One Assembly/Test Site, One Fabrication  
Site  
•
Point of Load Regulation for High  
Performance DSPs, FPGAs, ASICs, and  
Microprocessors  
Broadband, Networking and Optical  
Communications Infrastructure  
•
•
Extended Temperature Performance of –55°C  
to 125°C  
Enhanced Diminishing Manufacturing Sources  
(DMS) Support  
•
•
•
•
•
Enhanced Product-Change Notification  
Automotive Telematics  
(1)  
Qualification Pedigree  
PWP PACKAGE  
(TOP VIEW)  
60-mΩ MOSFET Switches for High Efficiency  
at 3-A Continuous Output Source or Sink  
Current  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
AGND  
VSENSE  
NC  
PWRGD  
BOOT  
PH  
RT  
•
0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V Fixed  
Output Voltage Device With 1% Initial  
Accuracy  
FSEL  
SS/ENA  
VBIAS  
VIN  
VIN  
VIN  
PGND  
PGND  
PGND  
•
•
•
Internally Compensated for Low Parts Count  
Fast Transient Response  
PH  
PH  
PH  
PH  
Wide PWM Frequency: Fixed 350 kHz, 550  
kHz, or Adjustable 280 kHz to 700 kHz  
•
•
Load Protected by Peak Current Limit and  
Thermal Shutdown  
NC − No internal connection  
Integrated Solution Reduces Board Area and  
Total Cost  
(1) Component qualification in accordance with JEDEC and  
industry standards to ensure reliable operation over an  
extended temperature range. This includes, but is not limited  
to, Highly Accelerated Stress Test (HAST) or biased 85/85,  
temperature cycle, autoclave or unbiased HAST,  
electromigration, bond intermetallic life, and mold compound  
life. Such qualification testing should not be viewed as  
justifying use of this component beyond specified  
performance and environmental limits.  
DESCRIPTION/ORDERING INFORMATION  
As A member of the SWIFT family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314,  
TPS54315 and TPS54316 low-input-voltage high-output current synchronous-buck PWM converter integrates all  
required active components. Included on the substrate with the listed features are a true, high performance,  
voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit  
to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit  
in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply  
sequencing.  
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, PowerPAD are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2007, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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