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TPS54355-EP

更新时间： 2024-11-08 11:58:23
品牌 Logo 应用领域
德州仪器 - TI 输出元件输入元件
页数 文件大小 规格书
35页 1246K
描述
4.5-V TO 20-V INPUT, 3-A OUTPUT SYNCHRONOUS PWM SWITCHES

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TPS54355-EP 数据手册

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TPS54352-EP, TPS54353-EP, TPS54354-EP  
TPS54355-EP, TPS54356-EP, TPS54357-EP  
www.ti.com ....................................................................................................................................................... SLVS684A–JANUARY 2007–REVISED JULY 2009  
4.5-V TO 20-V INPUT, 3-A OUTPUT SYNCHRONOUS PWM SWITCHES  
WITH INTEGRATED FET (SWIFT™)  
1
FEATURES  
SIMPLIFIED SCHEMATIC  
2
•
100-mΩ, 4.5-A Peak MOSFET Switch for High  
Efficiency at 3-A Continuous Output Current  
Input  
Voltage  
TPS54356  
SYNC  
•
•
Use External Low-Side MOSFET or Diode  
VIN  
Fixed-Output Versions – 1.2 V/1.5 V/1.8 V/  
2.5 V/3.3 V/5 V  
PWRGD  
ENA  
BOOT  
PH  
•
•
•
•
Internally Compensated for Low Parts Count  
Synchronize to External Clock  
BIAS  
Output  
Voltage  
180° Out-of-Phase Synchronization  
LSG  
Wide Pulse Width Modulation (PWM)  
Frequency – Fixed 250 kHz,  
500 kHz, or Adjustable 250 kHz to 700 kHz  
PGND  
VSENSE  
PWRPAD  
•
•
Internal Slow Start  
Load Protected by Peak Current Limit and  
Thermal Shutdown  
EFFICIENCY  
vs  
•
•
Adjustable Undervoltage Lockout  
OUTPUT CURRENT  
100  
16-Pin PowerPAD™ Thin Shrink Small-Outline  
Package (TSSOP) (PWP)  
V = 6 V  
I
95  
90  
85  
80  
75  
70  
65  
60  
V = 12 V  
I
APPLICATIONS  
•
Industrial and Commercial Low-Power  
Systems  
•
•
•
LCD Monitors and TVs  
Computer Peripherals  
Point-of-Load Regulation for High  
Performance DSPs, FPGAs, ASICs, and  
Microprocessors  
V = 12 V  
I
V
= 3.3 V  
O
55  
50  
f
= 500 kHz  
s
0
1
2
3
4
I
− Output Current − A  
O
SUPPORTS DEFENSE, AEROSPACE,  
AND MEDICAL APPLICATIONS  
•
•
•
•
Controlled Baseline  
One Assembly/Test Site  
One Fabrication Site  
Available in Military (–55°C/125°C)  
Temperature Range(1)  
•
•
•
Extended Product Life Cycle  
Extended Product-Change Notification  
Product Traceability  
(1) Additional temperature ranges are available - contact factory  
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
SWIFT, PowerPAD are trademarks 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 © 2007–2009, Texas Instruments Incorporated  
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