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LTC3830ES#TR PDF预览

LTC3830ES#TR

更新时间: 2024-01-14 14:54:25
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
24页 262K
描述
LTC3830 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation; Package: SO; Pins: 16; Temperature Range: -40°C to 85°C

LTC3830ES#TR 技术参数

是否Rohs认证: 不符合生命周期:Active
包装说明:SOP,Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.29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:e0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):235
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:Tin/Lead (Sn/Pb)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:20宽度:3.9116 mm

LTC3830ES#TR 数据手册

 浏览型号LTC3830ES#TR的Datasheet PDF文件第2页浏览型号LTC3830ES#TR的Datasheet PDF文件第3页浏览型号LTC3830ES#TR的Datasheet PDF文件第4页浏览型号LTC3830ES#TR的Datasheet PDF文件第5页浏览型号LTC3830ES#TR的Datasheet PDF文件第6页浏览型号LTC3830ES#TR的Datasheet PDF文件第7页 
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 (16-Pin Version and LTC3830-1)  
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 6V  
4.7µF  
Efficiency and Power Loss vs Load Current  
5.1  
100  
90  
80  
70  
60  
50  
40  
30  
20  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
+
220µF  
10V  
0.1µF  
LTC3830-1  
MBR0520T1  
SS  
PV  
CC2  
G1  
0.01µF  
M1  
Si7806DN  
COMP  
L
0.1µF  
15k  
3.2µH  
1.8V  
9A  
GND PV  
CC1  
G2  
12.7k 1%  
M2  
Si7806DN  
+
C
FB  
B320A  
OUT  
270µF  
2V  
5.36k 1%  
3.3nF  
V
V
= 3.3V  
OUT  
IN  
3830 F01  
= 1.8V  
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-6V to 1.8V Power Converter  
3830fa  
1

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