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LTC3830EGN PDF预览

LTC3830EGN

更新时间： 2024-01-04 23:27:45
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
24页 306K
描述
High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

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中文翻译

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LTC3830EGN 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP,
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.11模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：8 V最小输入电压：3 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e3长度：9.906 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.752 mm
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：500 kHz温度等级：COMMERCIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3.9116 mm
Base Number Matches：1

LTC3830EGN 数据手册

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LTC3830/LTC3830-1  
High Power Step-Down  
Synchronous DC/DC Controllers  
for Low Voltage Operation  
U
FEATURES  
DESCRIPTIO  
■
High Power Switching Regulator Controller  
The LTC®3830/LTC3830-1 are high power, high effi-  
ciency switching regulator controllers optimized for  
3.3V-5V to 1.xV-3.xV step-down applications. A preci-  
sion internal reference and feedback system provide  
±1% output regulation over temperature, load current  
andlinevoltagevariations. TheLTC3830/LTC3830-1use  
a synchronous switching architecture with N-channel  
MOSFETs. Additionally, the chip senses output current  
through the drain-source resistance of the upper  
N-channel FET, providing an adjustable current limit  
without a current sense resistor.  
for 3.3V-5V to 1.xV-3.xV Step-Down Applications  
■
No Current Sense Resistor Required  
■
Low Input Supply Voltage Range: 3V to 8V  
■
Maximum Duty Cycle >91% Over Temperature  
■
All N-Channel External MOSFETs  
■
Excellent Output Regulation: ±1% Over Line, Load  
and Temperature Variations  
High Efficiency: Over 95% Possible  
■
■
Adjustable or Fixed 3.3V Output (16-Pin Version)  
■
Programmable Fixed Frequency Operation: 100kHz to  
500kHz  
The LTC3830/LTC3830-1 operate with an input supply  
voltage as low as 3V and with a maximum duty cycle of  
>91% over temperature. They include a fixed frequency  
PWMoscillatorforlowoutputrippleoperation.The200kHz  
free-running clock frequency can be externally adjusted or  
synchronizedwithanexternalsignalfrom100kHzto500kHz.  
In shutdown mode, the LTC3830 supply current drops to  
<10µA. The LTC3830-1 differs from the LTC3830 S8 ver-  
sion by replacing shutdown with a soft-start function.  
■
External Clock Synchronization  
■
Soft-Start (Some Versions)  
■
Low Shutdown Current: <10µA  
■
Overtemperature Protection  
■
Available in S8, S16 and SSOP-16 Packages  
U
APPLICATIO S  
■
CPU Power Supplies  
■
Multiple Logic Supply Generator  
For a similar, pin compatible DC/DC converter with an  
outputvoltageaslowas0.6V, pleaserefertotheLTC3832.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
■
Distributed Power Applications  
High Efficiency Power Conversion  
■
U
TYPICAL APPLICATIO  
V
IN  
3V TO 8V  
4.7µF  
Efficiency  
5.1Ω  
100  
+
V
V
= 3.3V  
IN  
OUT  
220µF  
10V  
= 1.8V  
90  
0.1µF  
LTC3830-1  
SS  
PV  
CC2  
0.01µF  
80  
70  
M1  
COMP  
G1  
L
Si7806DN  
12V  
15k  
3.2µH  
1.8V  
9A  
GND PV  
FB  
CC1  
G2  
12.7k 1%  
60  
50  
40  
M2  
Si7806DN  
+
C
B320A  
OUT  
270µF  
4.7µF  
2V  
3830 F01  
5.36k 1%  
3.3nF  
L: SUMIDA CDEP105-3R2MC-88  
: PANASONIC EEFUEOD271R  
0
1
2
3
4
5
6
7
8
9
10  
C
OUT  
LOAD CURRENT (A)  
3830 TA02  
Figure 1. High Efficiency 3V-8V to 1.8V Power Converter  
sn3830 3830fs  
1
1234567...24

中文翻译

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LTC3830EGN 替代型号

型号 品牌 替代类型 描述 数据表
LTC3830EGN#TRPBF Linear

完全替代

 LTC3830 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation; Pa

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