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LTC1682CMS8-3.3 PDF预览

LTC1682CMS8-3.3

更新时间: 2024-02-13 19:56:29
品牌 Logo 应用领域
凌特 - Linear 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
12页 190K
描述
Doubler Charge Pumps with Low Noise Linear Regulator

LTC1682CMS8-3.3 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:5.06模拟集成电路 - 其他类型:SWITCHED CAPACITOR REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:4.4 V
最小输入电压:2 V标称输入电压:3 V
JESD-30 代码:S-PDSO-G8JESD-609代码:e3
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出电流:0.05 A标称输出电压:3.3 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):260
认证状态:Not Qualified座面最大高度:1.17 mm
子类别:Other Analog ICs表面贴装:YES
切换器配置:DOUBLER最大切换频率:620 kHz
技术:CMOS温度等级:COMMERCIAL
端子面层: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:30宽度:3 mm
Base Number Matches:1

LTC1682CMS8-3.3 数据手册

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U
FEATURES  
DESCRIPTIO  
TheLTC®1682/LTC1682-3.3/LTC1682-5aredoublercharge  
pumps with an internal low noise, low dropout (LDO) linear  
regulator. These parts are designed to provide a low noise  
boosted supply voltage for powering noise sensitive devices  
such as high frequency VCOs in wireless applications.  
Low Output Noise: 60µVRMS (100kHz BW)  
Adjustable or Fixed Boosted Output  
Adjustable Output Voltage Range: 2.5V to 5.5V  
Fixed Output Voltages: 3.3V, 5V  
Wide Input Voltage Range: 1.8V to 4.4V  
Uses Small Ceramic Capacitors  
An internal doubler charge pump converts a 1.8V to 4.4V  
input to a boosted output, while the internal LDO regulator  
convertstheboostedvoltagetoalownoiseregulatedoutput.  
TheadjustableversionallowstheusertosetVOUT viaexternal  
resistorsconnectedtoFB. Theregulatoriscapableofsupply-  
ing up to 50mA of output current. Shutdown reduces the  
supply current to < 5µA, removes the load from VIN by  
disabling the regulator and discharges VOUT to ground  
through a 100switch.  
No Inductors Required  
Output Current up to 50mA  
550kHz Switching Frequency  
Low Operating Current: 150µA  
Low Shutdown Current: 1µA  
Internal Thermal Shutdown and Current Limiting  
Available in 8-Pin MSOP and SO Packages  
U
APPLICATIO S  
The LTC1682 LDO regulator is stable with only 2µF on the  
output. Small ceramic capacitors can be used, reducing PC  
board area.  
VCO Power Supplies in Cellular Phones  
2-Way Pagers  
TheLTC1682/LTC1682-3.3/LTC1682-5areshort-circuitand  
over temperature protected. The parts are available in 8-pin  
MSOP and SO packages.  
Wireless PCMCIA Cards  
Portable Medical Instruments  
Low Power Data Acquisition  
Remote Transmitters  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
Open-Loop Close-In Phase Noise  
4.2V VCO Power Supply, VIN = 2.5V to 4.4V  
SHUTDOWN  
1
4.2V  
4.7µF  
8
7
6
5
f
OUT  
B
P
V
CPO  
OUT  
902MHz  
1000pF  
VCO  
4.7µF  
MURATA  
2
AMPLITUDE  
10dB/DIV  
+
SHDN  
LTC1682  
C
MQE001-902  
M
100k  
36k  
C
V
C
V
3
4
IN  
1µF  
FB  
V
C
IN  
2.5V TO  
4.4V  
0.22µF  
4.7µF  
4.7µF  
15k  
1000pF  
1k  
1000pF  
GND  
1682 TA01  
CENTER = 902MHz  
SPAN = 100kHz  
SWP = 10 sec  
RES BW = 1kHz  
VBW = 30Hz  
REF = 0dBm  
1682 TA02  
1

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