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LT1301CS8

更新时间： 2024-11-20 22:51:51
品牌 Logo 应用领域
凌特 - Linear 转换器闪存
页数 文件大小 规格书
12页 287K
描述
Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory

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LT1301CS8 数据手册

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LT1301  
Micropower High Efficiency  
5V/12V Step-Up DC/DC  
Converter for Flash Memory  
U
DESCRIPTION  
FEATURES  
■
12V at 120mA from 5V or 3.3V Supply  
TheLT1301isamicropowerstep-upDC/DCconverterthat  
utilizes Burst Mode™ operation. The device can deliver 5V  
or 12V from a two-cell battery input. It features program-  
mable 5V or 12V output via a logic-controlled input, no-  
loadquiescentcurrentof120µAandashutdownpinwhich  
reducessupplycurrentto10µA.Theon-chippowerswitch  
has a low 170mV saturation voltage at a switch current of  
1A, a four-fold reduction over prior designs. A 155kHz  
internal oscillator allows the use of extremely small sur-  
facemountinductorsandcapacitors.Operationisguaran-  
teedat1.8Vinput. Thisallowsmoreenergytobeextracted  
fromthebattery, increasingoperatinglife. TheILIM pincan  
be used for soft start or to program peak switch current  
with a single resistor allowing the use of even smaller  
inductors in lighter load applications. The LT1301 is  
available in an 8-lead SOIC package, minimizing board  
space requirements. For a selectable 3.3V/5V step-up  
converter, please see the LT1300. For higher output  
power, see the LT1302.  
■
Supply Voltage as Low as 1.8V  
■
Better High Current Efficiency Than CMOS  
Up to 89% Efficiency  
120µA Quiescent Current  
■
■
■
Shutdown to 10µA  
■
Programmable 5V or 12V Output  
■
Low VCESAT Switch: 170mV at 1A Typical  
■
ILIM Pin Programs Peak Switch Current  
■
Uses Inexpensive Surface Mount Inductors  
■
8-Lead DIP or SOIC Package  
U
APPLICATIONS  
■
Flash Memory VPP Generator  
■
Palmtop Computers  
■
Portable Instruments  
■
Bar-Code Scanners  
■
Personal Digital Assistants  
PCMCIA Cards  
■
Burst Mode is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIONS N  
L1  
Output Voltage  
Efficiency  
D1  
33µH  
5V  
OR  
3.3V  
12V  
OUTPUT  
90  
88  
86  
12V  
VOUT  
2V/DIV  
V
IN  
= 5V  
SW  
V
IN  
SELECT  
SENSE  
V
IN  
= 3.3V  
+
84  
82  
80  
78  
76  
74  
72  
0
C1  
LT1301  
47µF  
C2  
33µF  
20V  
+
0.1µF*  
SHDN  
PGND  
I
N/C  
SHUTDOWN  
LIM  
GND  
SHUTDOWN  
10V/DIV  
1ms/DIV  
LT1301 TAO1  
*REQUIRED FOR 5V OUTPUT  
V
IN = 5V, VOUT = 12V  
LT1301 F1  
LOAD = 100Ω  
L1 = COILCRAFT DO3316-333  
OR SUMIDA CD73-330KC  
D1 = 1N5817 OR MOTOROLA  
MBRS130LT3  
1
10  
LOAD CURRENT (mA)  
100  
300  
C1 = AVX TPSD476M016R0100  
OR SANYO OS-CON 165A47M  
C2 = AVX TPSD336M020R0100  
OR SANYO OS-CON 205A33M  
LT1301 TA2  
LT1300 F2  
Figure 1. 3.3V/5V to 12V Step-Up Converter  
1
1234567...12

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LT1301CS8 替代型号

型号 品牌 替代类型 描述 数据表
LT1301IS8 Linear

完全替代

 Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory

与LT1301CS8相关器件

型号 品牌 获取价格 描述 数据表
LT1301CS8#PBF Linear

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 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa
LT1301CS8#TR Linear

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 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa
LT1301CS8-12 Linear

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 		IC 1 A SWITCHING REGULATOR, PDSO8, 0.150 INCH, PLASTIC, SO-8, Switching Regulator or Contr
LT1301I Linear

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 		Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory
LT1301IN8 Linear

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 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa
LT1301IN8#PBF Linear

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 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa
LT1301IS8 Linear

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 		Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory
LT1301IS8#PBF Linear

获取价格

 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa
LT1301IS8#TR Linear

获取价格

 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa
LT1301IS8#TRPBF Linear

获取价格

 		LT1301 - Micropower High Efficiency 5V/12V Step-Up DC/DC Converter for Flash Memory; Packa

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