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TPS61041

更新时间： 2024-11-27 04:48:51
品牌 Logo 应用领域
德州仪器 - TI 转换器升压转换器
页数 文件大小 规格书
22页 528K
描述
LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES

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中文翻译

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TPS61041 数据手册

 浏览型号TPS61041的Datasheet PDF文件第2页浏览型号TPS61041的Datasheet PDF文件第3页浏览型号TPS61041的Datasheet PDF文件第4页浏览型号TPS61041的Datasheet PDF文件第5页浏览型号TPS61041的Datasheet PDF文件第6页浏览型号TPS61041的Datasheet PDF文件第7页 
TPS61040  
TPS61041  
www.ti.com  
SLVS413C–OCTOBER 2002–REVISED AUGUST 2007  
LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES  
1
FEATURES  
DESCRIPTION  
•
•
•
1.8-V to 6-V Input Voltage Range  
The TPS61040/41 is  
a
high-frequency boost  
converter dedicated for small to medium LCD bias  
supply and white LED backlight supplies. The device  
is ideal to generate output voltages up to 28 V from a  
dual cell NiMH/NiCd or a single cell Li-Ion battery.  
The part can also be used to generate standard  
3.3-V/5-V to 12-V power conversions.  
Adjustable Output Voltage Range up to 28 V  
400-mA (TPS61040) and 250-mA (TPS61041)  
Internal Switch Current  
•
•
•
•
•
Up to 1-MHz Switching Frequency  
28-μA Typical No-Load Quiescent Current  
1-μA Typical Shutdown Current  
Internal Soft Start  
The TPS61040/41 operates with  
a
switching  
frequency up to 1 MHz. This allows the use of small  
external components using ceramic as well as  
tantalum output capacitors. Together with the thin  
SON package, the TPS61040/41 gives a very small  
overall solution size. The TPS61040 has an internal  
400 mA switch current limit, while the TPS61041 has  
a 250-mA switch current limit, offering lower output  
voltage ripple and allows the use of a smaller form  
factor inductor for lower power applications. The low  
quiescent current (typically 28 μA) together with an  
optimized control scheme, allows device operation at  
very high efficiencies over the entire load current  
range.  
Available in SOT23-5 and 2 × 2 × 0.8-mm SON  
Packages  
APPLICATIONS  
•
•
•
•
•
•
•
LCD Bias Supply  
White-LED Supply for LCD Backlights  
Digital Still Camera  
PDAs, Organizers, and Handheld PCs  
Cellular Phones  
Internet Audio Player  
Standard 3.3-V/5-V to 12-V Conversion  
DBV PACKAGE  
(Top View)  
DRV PACKAGE  
(Top View)  
1
2
3
5
4
1
2
3
6
5
4
GND  
VIN  
SW  
NC  
FB  
VIN  
EN  
SW  
GND  
EN  
FB  
TYPICAL APPLICATION  
EFFICIENCY  
vs  
OUTPUT CURRENT  
90  
88  
86  
84  
82  
80  
78  
76  
74  
72  
70  
L1  
10 µH  
V
= 18 V  
D1  
O
V = 5 V  
I
V
V
OUT  
V
IN  
to 28 V  
IN  
1.8 V to 6.0 V  
V = 3.6 V  
I
C
FF  
R1  
1
3
2
5
4
V
SW  
IN  
C
1 µF  
O
V = 2.4 V  
I
FB  
C
4.7 µF  
IN  
EN  
GND  
R2  
0.10  
1
10  
100  
I
- Output Current - mA  
O
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2002–2007, Texas Instruments Incorporated  
1234567...22

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TPS61041 替代型号

型号 品牌 替代类型 描述 数据表
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