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TPS62110-EP PDF预览

TPS62110-EP

更新时间： 2024-09-22 12:47:11
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 797K
描述
17 V, 1.5 A, SYNCHRONOUS STEP-DOWN CONVERTER

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TPS62110-EP 数据手册

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TPS62110-EP  
TPS62111-EP  
TPS62112-EP  
www.ti.com .............................................................................................................................................................. SLVS630C–APRIL 2007–REVISED MAY 2008  
17 V, 1.5 A, SYNCHRONOUS STEP-DOWN CONVERTER  
1
FEATURES  
2
•
Controlled Baseline  
•
•
•
20 µA Quiescent Current (Typical)  
Overtemperature and Overcurrent Protected  
Available in 16 Pin QFN Package  
–
–
–
One Assembly  
One Test Site  
One Fabrication Site  
•
•
Extended Temperature Performance of –55°C  
to 125°C  
APPLICATIONS  
•
•
•
Point-of-Load Regulation From 12 V Bus  
Organizers, PDAs, and Handheld PCs  
Handheld Scanners  
Enhanced Diminishing Manufacturing Sources  
(DMS) Support  
•
•
•
Enhanced Product-Change Notification  
Qualification Pedigree  
High-Efficiency Synchronous Step-Down  
Converter With up to 95% Efficiency  
TYPICAL APPLICATION  
6.8 mH  
V
= 3.8 V to 17 V  
•
•
3.1 V to 17 V Operating Input Voltage Range  
I
TPS62111  
VIN  
VIN  
EN  
SW  
SW  
V = 3.3 V  
O
Adjustable Output Voltage Range From  
1.2 V to 16 V  
1 M  
PG  
LBO  
FB  
VINA  
C
= 10 mF  
1 mF  
I
CO = 22 mF  
25 V  
•
•
Fixed Output Voltage Options Available in  
3.3 V and 5 V  
6.3 V  
AGND  
LBI  
SYNC  
Synchronizable to External Clock Signal up to  
1.4 MHz  
GND GND PwPD PGND PGND  
•
•
Up to 1.5 A Output Current  
High Efficiency Over a Wide Load Current  
Range Due to PFM/PWM Operation Mode  
•
100% Maximum Duty Cycle for Lowest Dropout  
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  
specifiedperformance and environmental limits.  
DESCRIPTION/ORDERING INFORMATION  
The TPS6211x devices are a family of low-noise synchronous step-down dc-dc converters that are ideally suited  
for systems powered from a 2-cell Li-ion battery or from a 12 V or 15 V rail.  
The TPS6211x 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 TPS6211x is available in the 16 pin (RSA)  
QFN package, and operates over a free-air temperature range of –55°C to 125°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.  
2
PowerPAD is a trademark 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 © 2007–2008, Texas Instruments Incorporated  
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