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LTC3832-1ES8 PDF预览

LTC3832-1ES8

更新时间： 2024-02-07 08:56:01
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
24页 317K
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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LTC3832-1ES8 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：SOP,
针数：8Reach Compliance Code：compliant
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-G8
JESD-609代码：e3长度：4.9025 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：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：3.899 mm

LTC3832-1ES8 数据手册

 浏览型号LTC3832-1ES8的Datasheet PDF文件第2页浏览型号LTC3832-1ES8的Datasheet PDF文件第3页浏览型号LTC3832-1ES8的Datasheet PDF文件第4页浏览型号LTC3832-1ES8的Datasheet PDF文件第5页浏览型号LTC3832-1ES8的Datasheet PDF文件第6页浏览型号LTC3832-1ES8的Datasheet PDF文件第7页 
LTC3832/LTC3832-1  
High Power Step-Down  
Synchronous DC/DC Controllers  
for Low Voltage Operation  
U
FEATURES  
DESCRIPTIO  
The LTC®3832/LTC3832-1 are high power, high effi-  
ciency switching regulator controllers optimized for  
3.3V-5V to 0.6V-3.xV step-down applications. A preci-  
sion internal reference and feedback system provide  
±1% output regulation over temperature, load current  
andlinevoltagevariations. TheLTC3832/LTC3832-1use  
a synchronous switching architecture with N-channel  
MOSFETs. Additionally, the chip senses output current  
through the drain-source resistance of the upper  
N-channelMOSFET, providinganadjustablecurrentlimit  
without a current sense resistor.  
■
VOUT as Low as 0.6V  
■
High Power Switching Regulator Controller  
for 3.3V-5V to 0.6V-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 2.5V Output (LTC3832)  
■
Programmable Fixed Frequency Operation: 100kHz to  
The LTC3832/LTC3832-1 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.The300kHz  
free-running clock frequency can be externally adjusted or  
synchronizedwithanexternalsignalfrom100kHzto500kHz.  
In shutdown mode, the LTC3832 supply current drops to  
<10µA.TheLTC3832-1istheSO-8versionwithoutcurrent  
limit, frequency adjustment and shutdown functions.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
500kHz  
■
External Clock Synchronization  
■
Soft-Start  
■
Low Shutdown Current: <10µA  
■
Overtemperature Protection  
■
Available in SO-8 and SSOP-16 Packages  
U
APPLICATIO S  
■
CPU Power Supplies  
■
Multiple Logic Supply Generator  
■
Distributed Power Applications  
High Efficiency Power Conversion  
■
U
TYPICAL APPLICATIO  
V
IN  
Efficiency  
4.7µF  
3V TO 7V  
5.1Ω  
100  
+
V
= 2.5V  
OUT  
MBR0520T1  
90  
0.1µF  
LTC3832-1  
SS  
V
/PV  
CC  
CC2  
0.01µF  
V
= 1V  
80  
70  
OUT  
Si9426DY  
Si9426DY  
COMP  
GND  
FB  
G1  
L1  
3.2µH  
0.1µF  
15k  
V
1V  
9A  
OUT  
PV  
CC1  
G2  
60  
50  
40  
6.49k  
+
C
OUT  
270µF  
2V  
3832 F01  
4.32k  
680pF  
V
= 3.3V  
IN  
L1: SUMIDA CDEP105-3R2MC-88  
: PANASONIC EEFUEOD271R  
0
1
2
3
4
5
6
7
8
9
10  
C
OUT  
LOAD CURRENT (A)  
3832 F01b  
Figure 1. High Efficiency 3.3V to 1V Power Converter  
sn3832 3832fs  
1
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中文翻译

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