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TPS62220DDCR PDF预览

TPS62220DDCR

更新时间： 2024-02-09 02:24:49
品牌 Logo 应用领域
德州仪器 - TI 转换器功效
页数 文件大小 规格书
24页 746K
描述
400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23

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TPS62220DDCR 数据手册

 浏览型号TPS62220DDCR的Datasheet PDF文件第2页浏览型号TPS62220DDCR的Datasheet PDF文件第3页浏览型号TPS62220DDCR的Datasheet PDF文件第4页浏览型号TPS62220DDCR的Datasheet PDF文件第5页浏览型号TPS62220DDCR的Datasheet PDF文件第6页浏览型号TPS62220DDCR的Datasheet PDF文件第7页 
TPS62220, TPS62221, TPS62222  
TPS62223, TPS62224, TPS62227  
TPS62228, TPS62229  
www.ti.com  
SLVS491D–SEPTEMBER 2003–REVISED MARCH 2006  
400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23  
FEATURES  
DESCRIPTION  
•
High-Efficiency Synchronous Step-Down  
Converter With up to 95% Efficiency  
The TPS6222x devices are a family of high-efficiency,  
synchronous step-down converters ideally suited for  
portable systems powered by 1-cell Li-Ion or 3-cell  
NiMH/NiCd batteries. The devices are also suitable to  
operate from a standard 3.3-V or 5-V voltage rail.  
•
•
2.5-V to 6-V Input Voltage Range  
Adjustable Output Voltage Range From 0.7 V  
to VI  
With an output voltage range of 6 V down to 0.7 V  
and up to 400-mA output current, the devices are  
ideal for powering the low voltage TMS320™ DSP  
family and processors used in PDAs, pocket PCs,  
and smart phones. Under nominal load current, the  
devices operate with a fixed switching frequency of  
typically 1.25 MHz. At light load currents, the part  
enters the power-save mode operation; the switching  
frequency is reduced and the quiescent current is  
typically only 15 µA; therefore, the device achieves  
the highest efficiency over the entire load current  
range. The TPS6222x needs only three small  
external components. Together with the tiny TSOT23  
package, a minimum system solution size can be  
achieved. An advanced fast response voltage mode  
control scheme achieves superior line and load  
regulation with small ceramic input and output  
capacitors.  
•
•
•
•
Fixed Output Voltage Options Available  
Up to 400-mA Output Current  
1.25-MHz Fixed Frequency PWM Operation  
Highest Efficiency Over Wide Load Current  
Range Due to Power-Save Mode  
•
•
•
•
•
15-µA Typical Quiescent Current  
Soft Start  
100% Duty Cycle Low-Dropout Operation  
Dynamic Output-Voltage Positioning  
Available in TSOT23 Package  
APPLICATIONS  
•
•
•
•
•
•
•
PDAs and Pocket PC  
Cellular Phones, Smart Phones  
OMAP™ and Low Power DSP Supply  
Digital Cameras  
Portable Media Players  
Portable Equipment  
WLAN PC Cards  
100  
V
= 1.8 V,  
O
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
L = 4.7 mH,  
L1  
TPS62220  
C
= 22 mF  
O
4.7 mH  
V
V
1
2
3
5
O
I
V
SW  
I
V = 2.7 V  
I
1.5 V/400 mA  
2.5 V to 6 V  
C4  
10 mF  
R1  
C1  
GND  
C3  
4.7 mF  
360 kW  
22 pF  
4
EN  
FB  
V = 3.7 V  
I
C2  
R2  
100 pF  
180 kW  
V = 5 V  
I
45  
40  
0.01  
0.1  
1
10  
100 1000  
Typical Application (Adjustible Output Voltage Version)  
I
L
− Load Current − mA  
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.  
OMAP, TMS320 are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2003–2006, 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.  
1234567...24

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TPS62220DDCR 替代型号

型号 品牌 替代类型 描述 数据表
TPS62220DDCRG4 TI

完全替代

 400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62220DDCTG4 TI

类似代替

 400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62220DDCT TI

类似代替

 400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23

与TPS62220DDCR相关器件

型号 品牌 获取价格 描述 数据表
TPS62220DDCRG4 TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62220DDCT TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62220DDCTG4 TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62221 TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62221DDC TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62221DDCR TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62221DDCRG4 TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62221DDCT TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62221DDCTG4 TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
TPS62222 TI

获取价格

 		400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23

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