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LTC3835IDHC-1-TR PDF预览

LTC3835IDHC-1-TR

更新时间: 2024-01-06 01:16:43
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
28页 294K
描述
Low IQ Synchronous Step-Down Controller

LTC3835IDHC-1-TR 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:DFN包装说明:HVSON, SOLCC16,.12,20
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.11Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:36 V
最小输入电压:4 V标称输入电压:12 V
JESD-30 代码:R-PDSO-N16JESD-609代码:e3
长度:5 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:3 A封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC16,.12,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):250认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:580 kHz技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 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 mmBase Number Matches:1

LTC3835IDHC-1-TR 数据手册

 浏览型号LTC3835IDHC-1-TR的Datasheet PDF文件第2页浏览型号LTC3835IDHC-1-TR的Datasheet PDF文件第3页浏览型号LTC3835IDHC-1-TR的Datasheet PDF文件第4页浏览型号LTC3835IDHC-1-TR的Datasheet PDF文件第5页浏览型号LTC3835IDHC-1-TR的Datasheet PDF文件第6页浏览型号LTC3835IDHC-1-TR的Datasheet PDF文件第7页 
LTC3835-1  
Low I Synchronous  
Q
Step-Down Controller  
FEATURES  
DESCRIPTION  
The LTC®3835-1 is a high performance step-down switch-  
ingregulatorcontrollerthatdrivesanallN-channelsynchro-  
nous power MOSFET stage. A constant-frequency current  
mode architecture allows a phase-lockable frequency of  
up to 650kHz.  
n
Wide Output Voltage Range: 0.8V ≤ V  
≤ 10V  
OUT  
n
Low Operating I : 80μA  
Q
OPTI-LOOP® Compensation Minimizes C  
1ꢀ Output Voltage Accuracy  
n
OUT  
n
n
n
n
n
n
n
n
n
n
Wide V Range: 4V to 36V Operation  
IN  
Phase-Lockable Fixed Frequency 140kHz to 650kHz  
Dual N-Channel MOSFET Synchronous Drive  
Very Low Dropout Operation: 99% Duty Cycle  
Adjustable Output Voltage Soft-Start or Tracking  
Output Current Foldback Limiting  
The 80μA no-load quiescent current extends operating  
life in battery powered systems. OPTI-LOOP compensa-  
tion allows the transient response to be optimized over  
a wide range of output capacitance and ESR values. The  
LTC3835-1featuresaprecision0.8Vreferenceandapower  
good output indicator. The 4V to 36V input supply range  
encompasses a wide range of battery chemistries.  
Output Overvoltage Protection  
Low Shutdown I : 10μA  
Selectable Continuous, Pulse-Skipping or  
Burst Mode® Operation at Light Loads  
Small 16-Lead Narrow SSOP or 3mm × 5mm  
DFN Package  
Q
The TRACK/SS pin ramps the output voltage during start-  
up.CurrentfoldbacklimitsMOSFETheatdissipationduring  
short-circuit conditions.  
n
Comparison of LTC3835 and LTC3835-1  
CLKOUT/  
APPLICATIONS  
PART #  
PHASMD  
EXTV  
PGOOD  
PACKAGES  
CC  
n
Automotive Systems  
LTC3835  
LTC3835-1  
YES  
YES  
NO  
YES  
FE20/4 × 5 QFN  
GN16/3 × 5 DFN  
n
Telecom Systems  
NO  
NO  
n
Battery-Operated Digital Devices  
L, LT, LTC, LTM, Burst Mode, and OPTI-LOOP are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 5408150, 5481178, 5705919, 5929620, 6304066,  
6498466, 6580258, 6611131.  
n
Distributed DC Power Systems  
TYPICAL APPLICATION  
High Efficiency Step-Down Converter  
Efficiency and Power Loss  
V
IN  
vs Load Current  
PLLLPF  
V
IN  
4V TO 36V  
100000  
10000  
1000  
100  
100  
90  
10μF  
RUN  
TG  
0.01μF  
V
= 12V; V  
OUT  
= 3.3V  
EFFICIENCY  
IN  
0.22μF  
TRACK/SS  
80  
BOOST  
SW  
3.3μH  
V
3.3V  
5A  
0.012Ω  
OUT  
I
TH  
70  
330pF  
LTC3835-1  
60  
50  
100pF  
33k  
150μF  
SGND  
PLLIN/MODE  
INTV  
CC  
40  
30  
20  
10  
0
POWER LOSS  
10  
4.7μF  
20k  
V
FB  
BG  
1
+
SENSE  
SENSE  
62.5k  
0.1  
PGND  
0.001 0.01 0.1  
1
10 100 1000 10000  
LOAD CURRENT (mA)  
38351 TA01b  
38351 TA01  
38351fc  
1

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