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LT3582_15

更新时间： 2024-09-24 01:11:43
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 326K
描述
Boost and Single Inductor Inverting DC/DC Converters with Optional I2C Programing and OTP

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中文翻译

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LT3582_15 数据手册

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LT3582/LT3582-5/LT3582-12  
Boost and Single Inductor  
Inverting DC/DC Converters with  
2
Optional I C Programing and OTP  
FEATURES  
DESCRIPTION  
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TheLT®3582/LT3582-5/LT3582-12aredualDC/DCconverters  
V 3.12VꢅrV±1.77ꢃ2VꢁꢂdV–±.12VꢅrV–±3.9ꢃ2V(LT3ꢃ81)  
V ꢃ2VꢁꢂdV–ꢃ2V(LT3ꢃ81-ꢃ)  
featuringpositiveandnegativeoutputsandintegratedfeedback  
resistors.TheLT3582,withitsbuilt-inOneTimeProgramming  
2
V ±12VꢁꢂdV–±12V(LT3ꢃ81-±1)  
(OTP), has configurable output settings via the I C interface,  
1
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DlnlꢅꢁppyVRi-PfrnfꢁooꢁbpiV(LT3ꢃ81)VvlꢁVꢄ CVꢀrf:  
including output voltage settings, power-up sequencing,  
power-downdischarge,andoutputvoltageramprates.LT3582  
settings can be changed adaptively in the final product, or set  
during manufacturing and made permanent using the built in  
non-volatile OTP memory. The positive output voltage can be  
set between 3.2V and 12.775V in 25mV steps. The negative  
output voltage can be set between –1.2V and –13.95V in  
–50mVsteps.TheLT3582-5andLT3582-12arepre-configured  
at the factory for 5V and 12V outputs respectively, and as  
V OSꢅuSꢅV2rpꢅꢁniVRꢁouVRꢁꢅie  
Prwif-UuVDiꢀꢁSpꢅeV iꢅꢅꢁbpiVwlꢅhVNrꢂ-2rpꢁꢅlpiVOTPV  
(LT3ꢃ81)  
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1
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AppVPrwifV wlꢅchieVꢄꢂꢅinfꢁꢅid  
V 3ꢃ0oAVCSffiꢂꢅVLlolꢅV(Brreꢅ)  
V 600oAVCSffiꢂꢅVLlolꢅV(ꢄꢂvifꢅlꢂn)  
AppVFiidbꢁckVRieleꢅrfeVꢄꢂꢅinfꢁꢅid  
ꢄꢂuSꢅV2rpꢅꢁniVRꢁꢂni:V1.ꢃꢃ2VꢅrVꢃ.ꢃ2  
Low Quiescent Current  
2
such, don’t require the use of the I C interface.  
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The LT3582 series includes two monolithic converters,  
one Boost and one Inverting. The Boost converter has an  
integrated power switch and output disconnect switch.  
The Inverting converter uses a single inductor topology  
and includes an integrated power switch. Both Boost  
and Inverting converters use a novel** control scheme  
resultinginlowoutputvoltageripplewhileallowingforhigh  
conversion efficiency over a wide load current range. The  
LT3582 series is available in a 16-pin 3mm × 3mm QFN.  
325μA in Active Mode  
0.01μA in Shutdown Mode  
Integrated Output Disconnect  
Tiny 16-Pin 3mm × 3mm QFN Package  
n
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APPLICATIONS  
n
AMOLED Power  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
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CCD Power  
*
Input thresholds are reduced to allow communication with low voltage digital ICs.  
(See Electrical Characteristics).  
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General Purpose DC/DC Conversion  
** Patent Pending  
TYPICAL APPLICATION  
±±12V SuuplieVꢀfroVꢁV lꢂnpiVꢃ2VꢄꢂuSꢅ  
EꢀfiVcliꢂcyVꢁꢂdVPrwifVLree  
350  
300  
250  
200  
150  
100  
95  
85  
75  
65  
55  
45  
35  
SWN  
SWN  
SHDN  
V
V
OUTP  
OUTN  
INPUT  
V
IN  
4.5V TO 5.5V  
6.8ꢀH  
6.8ꢀH  
1ꢀF  
SWP  
GND  
4.7ꢀF  
LT3582  
10ꢀF  
V
CAPP  
CAPP  
NEG  
–12V  
V
OUTN  
V
85mA  
POS  
2
V
OUTP  
12V  
I C  
SDA  
SCL  
CA  
80mA  
INTERFACE  
OPTIONAL ON  
50  
0
V
PP  
4.7ꢀF  
ꢀ
ꢁ
LT3582-5/LT3582-12  
RAMPP RAMPN  
3582512 TA01a  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
10nF  
10nF  
3582512 TA01b  
3582512fb  
1
1234567...28

中文翻译

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 		LT3582 - Boost and Single Inductor Inverting DC/DC Converters with Optional I<sup>2&
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 		LT3582 - Boost and Single Inductor Inverting DC/DC Converters with Optional I<sup>2&
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 		LT3582 - Boost and Single Inductor Inverting DC/DC Converters with Optional I<sup>2&
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 		I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP
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 		I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP

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