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LTC3835IUFD#PBF PDF预览

LTC3835IUFD#PBF

更新时间: 2024-09-28 19:59:19
品牌 Logo 应用领域
凌特 - Linear 开关输出元件
页数 文件大小 规格书
28页 303K
描述
LTC3835 - Low IQ Synchronous Step-Down Controller; Package: QFN; Pins: 20; Temperature Range: -40°C to 85°C

LTC3835IUFD#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:QFN包装说明:HVQCCN, LCC20,.16X.2,20
针数:20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.35其他特性:ALSO HAS ADJUSTABLE OUTPUT VOLTAGE FROM 0.8V TO 10V
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-PQCC-N20JESD-609代码:e3
长度:5 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:3 A标称输出电压:5.25 V
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装等效代码:LCC20,.16X.2,20封装形状:RECTANGULAR
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
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:QUAD
处于峰值回流温度下的最长时间:30宽度:4 mm
Base Number Matches:1

LTC3835IUFD#PBF 数据手册

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LTC3835  
Low I Synchronous  
Q
Step-Down Controller  
FEATURES  
DESCRIPTION  
TheLTC®3835isahighperformancestep-downswitching  
regulator controller that drives an all N-channel synchro-  
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  
IN  
n
Low Operating Quiescent Current: 80μA  
OPTI-LOOP® Compensation Minimizes C  
n
OUT  
n
1ꢀ Output Voltage Accuracy  
n
Wide V Range: 4V to 36V Operation  
IN  
n
Phase-Lockable Fixed Frequency 140kHz to 650kHz  
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 features a precision 0.8V reference and a power  
good output indicator. The 4V to 36V input supply range  
encompasses a wide range of battery chemistries.  
n
Dual N-Channel MOSFET Synchronous Drive  
n
Very Low Dropout Operation: 99% Duty Cycle  
n
Adjustable Output Voltage Soft-Start or Tracking  
n
Output Current Foldback Limiting  
n
Power Good Output Voltage Monitor  
Clock Output for PolyPhase® Applications  
n
n
Output Overvoltage Protection  
Low Shutdown I : 10μA  
n
The TRACK/SS pin ramps the output voltage during start-  
up.CurrentfoldbacklimitsMOSFETheatdissipationduring  
short-circuit conditions.  
Q
n
n
Internal LDO Powers Gate Drive from V or V  
IN  
OUT  
Selectable Continuous, Pulse-Skipping or  
Burst Mode® Operation at Light Loads  
Comparison of LTC3835 and LTC3835-1  
CLKOUT/  
n
Small 20-Lead TSSOP or 4mm × 5mm QFN Package  
PART #  
PHASMD  
EXTV  
PGOOD  
PACKAGES  
FE20/4 × 5 QFN  
GN16/3 × 5 DFN  
CC  
LTC3835  
LTC3835-1  
YES  
YES  
NO  
YES  
APPLICATIONS  
NO  
NO  
n
Automotive Systems  
n
Telecom Systems  
L, LT, LTC, LTM, Burst Mode, PolyPhase 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
Battery-Operated Digital Devices  
Distributed DC Power Systems  
n
TYPICAL APPLICATION  
Efficiency and Power Loss  
vs Load Current  
High Efficiency Synchronous Step-Down Converter  
CLKOUT  
V
IN  
V
IN  
4V TO  
36V  
100000  
10000  
1000  
100  
100  
90  
PLLLPF  
RUN  
EFFICIENCY  
= 12V; V = 3.3V  
10μF  
TG  
V
IN  
OUT  
0.01μF  
0.22μF  
PGOOD  
TRACK/SS  
80  
BOOST  
SW  
70  
3.3μH  
V
0.012Ω  
OUT  
I
TH  
3.3V  
5A  
330pF  
33k  
60  
50  
LTC3835  
100pF  
150μF  
40  
30  
20  
10  
0
SGND  
INTV  
EXTV  
CC  
CC  
POWER LOSS  
10  
4.7μF  
20k  
PLLIN/MODE  
V
BG  
FB  
1
SENSE  
62.5k  
+
0.1  
SENSE  
PGND  
0.001 0.01 0.1  
1
10 100 1000 10000  
LOAD CURRENT (mA)  
3835 TA01b  
3835 TA01  
3835fc  
1

LTC3835IUFD#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3835IUFD#TRPBF Linear

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LTC3835 - Low IQ Synchronous Step-Down Controller; Package: QFN; Pins: 20; Temperature Ran

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