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LTC3417AEDHC#PBF PDF预览

LTC3417AEDHC#PBF

更新时间: 2024-09-24 19:50:11
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
22页 310K
描述
LTC3417A - Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator; Package: DFN; Pins: 16; Temperature Range: -40°C to 85°C

LTC3417AEDHC#PBF 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:2.89其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 5V
模拟集成电路 - 其他类型:DUAL SWITCHING CONTROLLER控制模式:CURRENT-MODE
最大输入电压:5.5 V最小输入电压:2.25 V
标称输入电压:3.6 VJESD-30 代码:R-PDSO-N16
JESD-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:最大输出电流:2.5 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):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:PHASE-SHIFT最大切换频率:4000 kHz
技术:CMOS温度等级:OTHER
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:30宽度:3 mm
Base Number Matches:1

LTC3417AEDHC#PBF 数据手册

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LTC3417A  
Dual Synchronous  
1.5A/1A 4MHz Step-Down  
DC/DC Regulator  
FeaTures  
DescripTion  
n
High Efficiency: Up to 95%  
TheLTC®3417Aisadualconstantfrequency,synchronous  
step-down DC/DC converter. Intended for medium power  
applications, it operates from a 2.25V to 5.5V input volt-  
age range and has a constant programmable switching  
frequency, allowing the use of tiny, low cost capacitors  
and inductors 2mm or less in height. Each output voltage  
is adjustable from 0.8V to 5V. Internal, synchronous, low  
n
1.5A/1A Guaranteed Minimum Output Current  
n
Synchronizable to External Clock  
n
No Schottky Diodes Required  
n
Programmable Frequency Operation: 1.5MHz or  
Adjustable From 0.6MHz to 4MHz  
n
Low R  
Internal Switches  
DS(ON)  
Short-Circuit Protected  
n
n
n
R
power switches provide high efficiency without  
DS(ON)  
V : 2.25V to 5.5V  
IN  
the need for external Schottky diodes.  
Current Mode Operation for Excellent Line and Load  
A user selectable mode input allows the user to trade  
off ripple voltage for light load efficiency. Burst Mode®  
operation provides high efficiency at light loads, while  
Pulse Skip mode provides low ripple noise at light loads.  
A phase mode pin allows the second channel to operate  
in-phase or 180° out-of-phase with respect to channel 1.  
Transient Response  
n
n
n
n
n
125µA Quiescent Current in Sleep Mode  
Ultralow Shutdown Current: I < 1µA  
Q
Low Dropout Operation: 100% Duty Cycle  
Power Good Output  
Phase Pin Selects 2nd Channel Phase Relationship  
with Respect to 1st Channel  
Out-of-phaseoperationproduceslowerRMScurrentonV  
and thus a lower RMS derating on the input capacitor.  
IN  
n
n
Internal Soft-Start with Individual Run Pin Control  
Available in Small Thermally Enhanced  
(5mm × 3mm) DFN and 20-Lead TSSOP Packages  
To further maximize battery life, the P-channel MOSFETs  
are turned on continuously in dropout (100% duty cycle)  
and both channels draw a total quiescent current of only  
125µA. In shutdown, the device draws <1µA.  
L, LT, LTC, LTM and Burst Mode are registered trademarks and Hot Swap and ThinSOT are  
trademarks of Linear Technology Corporation. All other trademarks are the property of their  
respective owners. Protected by U.S. Patents including 5481178, 6580258, 6304066, 6127815,  
6498466, 6611131, 6144194.  
applicaTions  
n
GPS/Navigation  
n
Digital Cameras  
n
PC Cards  
Wireless and DSL Modems  
General Purpose Point of Load DC/DC  
n
n
OUT2 Efficiency  
Typical applicaTion  
(Burst Mode Operation)  
V
IN  
2.5V TO 5.5V  
100  
95  
90  
85  
80  
75  
70  
10  
REFER TO FIGURE 4  
10µF  
V
IN  
EFFICIENCY  
FREQ  
SW1  
1
1.5µH  
2.2µH  
IN  
V
V
2.5V  
1A  
OUT1  
1.8V  
1.5A  
OUT2  
SW2  
22pF  
22pF  
RUN2  
V
IN  
V
RUN1  
0.1  
LTC3417A  
511k  
412k  
866k  
412k  
V
V
FB1  
FB2  
0.01  
0.001  
0.0001  
POWER LOSS  
47µF  
22µF  
I
I
TH2  
TH1  
V
V
= 3.6V  
= 2.5V  
IN  
OUT  
5.9k  
2200pF  
2.87k  
6800pF  
GND  
FREQ = 1MHz  
0.1  
LOAD CURRENT (A)  
0.001  
0.01  
1
3417 TA01  
3417 TA01a  
3417afc  
1

LTC3417AEDHC#PBF 替代型号

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