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0311_XC6381 PDF预览

0311_XC6381

更新时间: 2022-11-25 11:51:14
品牌 Logo 应用领域
特瑞仕 - TOREX 转换器
页数 文件大小 规格书
12页 227K
描述
PFM CONTROLLED STEP UP DC/DC CONVERTERS

0311_XC6381 数据手册

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04S_08XC6381 02.09.12 14:52 ページ 475  
Series  
PFM Controlled, Step‐Up DC/DC Converters (Duty Ratio 58%)  
NDuty 58%  
■Applications  
GCellular phones, pagers  
NCMOS Low Power Consumption  
GPalmtops  
NOperating Voltage  
: 0.9V~10.0V  
: 2.0V~7.0V  
GCameras, video recorders  
GPortable equipment  
NOutput Voltage Range  
NOutput Voltage Accuracy: 2.5%  
4
■General Description  
The XC6381 series is a group of PFM controlled step-up DC/DC  
converters.  
■Features  
Operating (start-up) voltage range  
: 0.9V~10V  
The XC6381 series employs CMOS process and laser trimming  
technologies so as to attain low power and high accuracy.  
Max. oscillator frequency is trimmed to 155kHz (accuracy: 15ꢀ%.  
Every built-in switching transistor type enables a step-up circuit to be  
configured using only three external components ; a coil, a diode, and a  
capacitor. External transistor versions are available to accommodate  
high output current applications.  
Output voltage range : 2.0V~7.0V in 0.1V increments  
Highly accurate  
Maximum oscillator frequency  
: 155kHz ( 15ꢀ%  
: 58ꢀ ( 5ꢀ%  
: Set-up voltage 2.5ꢀ  
Duty Ratio  
Both built-in switching transistor and external types are  
available  
Both built-in and external transistor types include 5-pin and 3-pin  
packages, which are provided with either a CE (chip enable% function that  
reduces power consumption during shut-down mode, or a VDD pin  
function (separated power and voltage detect pins%.  
Five-lead packaged units offer either Chip Enable or  
independent VOUT pin option.  
Small package  
: SOT-23, 25 mini-mold (3-pin, 5-pin%  
SOT-89, 89-5 mini-power mold  
(3-pin, 5-pin%  
SOT-23, SOT-25, and SOT-89-5 super mini-mold packages.  
■Typical Application Circuit  
■Typical Performance  
Characteristic  
2
1
L
XC6381A301  
L=100μH,C=47μF(Tantalum)�  
100  
SOT-23�  
(TOP VIEW)  
VIN  
CIN  
80  
3
V
IN=2.0V  
VOUT  
60  
40  
20  
0
0.9V  
1.2V  
1.5V  
1.8V  
SD  
CL�  
(Tantalum)�  
GND  
0
20  
40  
60  
80  
100  
Output Current:IOUT(mA)�  
475  

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