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LTC1261LIMS8-4.5#PBF

更新时间： 2024-09-17 21:06:43
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
14页 2381K
描述
LTC1261L - Switched Capacitor Regulated Voltage Inverter; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C

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LTC1261LIMS8-4.5#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP, TSSOP8,.19
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.6其他特性：ALSO OPERATES AT -4.5V
模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR最大输入电压：5.25 V
最小输入电压：4.75 V标称输入电压：5 V
JESD-30 代码：S-PDSO-G8JESD-609代码：e3
长度：3 mm功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.01 A
标称输出电压：-4.5 V封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP8,.19
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Other Analog ICs
表面贴装：YES切换器配置：DOUBLER INVERTER
技术：CMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LTC1261LIMS8-4.5#PBF 数据手册

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LTC1261L  
Switched Capacitor  
Regulated Voltage Inverter  
FEATURES  
DESCRIPTION  
The LTC®1261L is a switched-capacitor voltage inverter  
designed to provide a regulated negative voltage from a  
single positive supply. The LTC1261L operates from a  
single 2.7V to 5.25V supply and provides an adjustable  
output voltage from –1.23V to –5V. The LTC1261L-4/  
LTC1261L-4.5 needs a single 4.5V to 5.25V supply and  
provides a fixed output voltage of –4V to –4.5V respec-  
tively.Threeexternalcapacitorsarerequired:a0.1µFflying  
capacitor and an input and output bypass capacitors. An  
optional compensation capacitor at ADJ (COMP) can be  
used to reduce the output voltage ripple.  
n
Regulated Negative Voltage from a  
Single Positive Supply  
n
REG Pin Indicates Output is in Regulation  
n
Adjustable or Fixed Output Voltages  
Output Regulation: 4.5%  
Supply Current: 650µA Typ  
n
n
n
Shutdown Mode Drops Supply Current to 5µA  
n
Up to 20mA Output Current  
n
Requires Only Three or Four External Capacitors  
n
Available in MS8 and SO-8 Packages  
Each version of the LTC1261L will supply up to 20mA  
outputcurrentwithguaranteedoutputregulationof 4.5%.  
The LTC1261L includes an open-drain REG output that  
pulls low when the output is within 5% of the set value.  
Quiescent current is typically 650µA when operating and  
5µA in shutdown.  
APPLICATIONS  
n
GaAs FET Bias Generators  
n
Negative Supply Generators  
n
Battery-Powered Systems  
n
Single Supply Applications  
TheLTC1261Lisavailablein 8-pinMSOPandSOpackages.  
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.  
TYPICAL APPLICATION  
Waveforms for –4V Generator with Power Valid  
–4V Generator with Power Valid  
0V  
5V  
OUT  
1
2
3
4
8
7
6
5
5V  
V
SHDN  
REG  
CC  
+
10k  
–4V  
C1  
POWER VALID  
C1  
1µF  
C2  
0.1µF  
5V  
SHDN  
0V  
LTC1261L-4  
V
= –4V  
–
OUT  
C1  
OUT  
AT 10mA  
C4  
3.3µF  
+
GND  
COMP  
5V  
POWER VALID  
0V  
C3*  
100pF  
1261L TA01  
*OPTIONAL  
1261L TA02  
0.1ms/DIV  
1261lfa  
1
1234567...14

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