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TPS62110-HT PDF预览

TPS62110-HT

更新时间： 2024-09-22 07:07:59
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
25页 722K
描述
17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER

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TPS62110-HT 数据手册

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TPS62110-HT  
www.ti.com  
SLVSAO9B –DECEMBER 2010–REVISED FEBRUARY 2011  
17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER  
Check for Samples: TPS62110-HT  
1
FEATURES  
•
High-Efficiency Synchronous Step-Down  
Converter With up to 95% Efficiency  
SUPPORTS EXTREME TEMPERATURE  
APPLICATIONS  
•
•
•
•
Controlled Baseline  
One Assembly/Test Site  
One Fabrication Site  
•
•
3.1-V to 17-V Operating Input Voltage Range  
Adjustable Output Voltage Range From  
1.2 V to 16 V  
Available in Extreme (–55°C/175°C)  
•
Synchronizable to External Clock Signal up to  
1.4 MHz  
Temperature Range(2)  
•
•
•
•
Extended Product Life Cycle  
Extended Product-Change Notification  
Product Traceability  
Texas Instruments high temperature products  
utilize highly optimized silicon (die) solutions  
with design and process enhancements to  
maximize performance over extended  
temperatures.  
(1)  
•
•
•
Up to 1.5-A Output Peak Current  
32-µA Quiescent Current (Typ)  
High Efficiency Over a Wide Load Current  
Range Due to PFM/PWM Operation Mode  
•
100% Maximum Duty Cycle for Lowest  
Dropout  
•
•
Overtemperature and Overcurrent Protected  
Available in 16-Pin (PWP) QFP Package  
TYPICAL APPLICATION  
6.8 mH  
V
= 3.8 V to 17 V  
I
TPS62110  
VIN  
VIN  
EN  
SW  
SW  
V = 3.3 V  
O
APPLICATIONS  
1 MW  
•
Down-Hole Drilling  
High Temperature Environments  
PG  
LBO  
FB  
VINA  
C
= 10 mF  
•
1 mF  
I
CO = 22 mF  
25 V  
6.3 V  
AGND  
LBI  
SYNC  
GND GND PwPD PGND PGND  
(1) Reduce life time may happen when 1.5-A limit is used for long  
time. Please refer to the EM calculations graph.  
(2) Custom temperature ranges available  
DESCRIPTION/ORDERING INFORMATION  
The TPS62110 is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered  
from a 2-cell Li-ion battery or from a 12-V or 15-V rail.  
The TPS62110 is a synchronous PWM converter with integrated N-channel and P-channel power MOSFET  
switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To  
achieve highest efficiency over a wide load current range, the converter enters a power-saving, pulse-frequency  
modulation (PFM) mode at light load currents. Operating frequency is typically 1 MHz, allowing the use of small  
inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 0.8  
MHz to 1.4 MHz. For low noise operation, the converter can be operated in PWM-only mode. In the shutdown  
mode, the current consumption is reduced to less than 2 μA. The TPS62110 is available in the 16-pin (PWP)  
QFP package, and operates over a free-air temperature range of –55°C to 175°C.  
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.  
PRODUCTION DATA information is current as of publication date.  
© 2010–2011, 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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