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LTC3417AIFE-2#TRPBF PDF预览

LTC3417AIFE-2#TRPBF

更新时间： 2024-09-25 21:11:51
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
20页 336K
描述
LTC3417A-2 - Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator; Package: TSSOP; Pins: 20; Temperature Range: -40°C to 85°C

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LTC3417AIFE-2#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP, TSSOP20,.25
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.16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 V
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：6.5 mm湿度敏感等级：1
功能数量：1端子数量：20
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.2 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：4000 kHz
技术：CMOS温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：4.4 mm
Base Number Matches：1

LTC3417AIFE-2#TRPBF 数据手册

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LTC3417A-2  
Dual Synchronous  
1.5A/1A 4MHz  
Step-Down DC/DC Regulator  
FEATURES  
DESCRIPTION  
The LTC®3417A-2 is a dual constant frequency, synchro-  
nous step-down DC/DC converter. Intended for medium  
power applications, it operates from a 2.25V to 5.5V input  
voltagerangeandhasaconstantprogrammableswitching  
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
High Efficiency: Up to 95%  
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  
Low Ripple (<35mV ) BurstMode® Operation  
n
P-P  
R
power switches provide high efficiency without  
I : 125μA in Sleep  
DS(ON)  
Q
n
the need for external Schottky diodes.  
Low R  
Internal Switches  
DS(ON)  
n
n
n
Short-Circuit Protected  
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.  
Out-of-phase operation produces lower RMS current on  
V : 2.25V to 5.5V  
IN  
Current Mode Operation for Excellent Line and Load  
Transient Response  
n
n
n
n
Ultralow Shutdown Current: I < 1μA  
Q
Low Dropout Operation: 100% Duty Cycle  
Power Good Ouput  
Phase Pin Selects 2nd Channel Phase Relationship  
with Respect to 1st Channel  
V and thus lower stress on the input capacitor.  
IN  
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  
100μA. In shutdown, the device draws <1μA.  
n
n
Internal Soft-Start with Individual Run Pin Control  
Available in Small Thermally Enhanced  
(5mm × 3mm) DFN and 20-Lead TSSOP Packages  
APPLICATIONS  
L, LT, LTC, LTM and Burst Mode are registered 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.  
n
GPS/Navigation Systems  
n
Automotive Instrumentation  
n
PC Cards  
n
Industrial Power Supplies  
n
General Purpose Point of Load DC/DC  
VOUT2 Efficiency  
TYPICAL APPLICATION  
(Burst Mode Operation)  
100  
95  
90  
85  
80  
75  
70  
10  
V
IN  
2.5V TO 5.5V  
REFER TO FIGURE 4  
10μF  
V
IN  
EFFICIENCY  
1
FREQ  
SW1  
1.5μH  
2.2μH  
V
V
2.5V  
1A  
OUT1  
1.8V  
1.5A  
OUT2  
SW2  
0.1  
22pF  
22pF  
RUN2  
V
IN  
RUN1  
V
IN  
LTC3417A-2  
0.01  
0.001  
0.0001  
511k  
412k  
866k  
412k  
V
FB2  
V
FB1  
POWER LOSS  
47μF  
22μF  
V
V
= 3.6V  
OUT  
FREQ = 1MHz  
I
IN  
I
TH2  
TH1  
= 2.5V  
5.9k  
2200pF  
2.87k  
GND  
0.001  
0.01  
0.1  
1
6800pF  
LOAD CURRENT (A)  
3417A-2 TA01  
3417A-2 TA01a  
3417a2fa  
1
1234567...20

中文翻译

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LTC3417AIFE-2#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3417AEFE-2#TRPBF Linear

类似代替

 LTC3417A-2 - Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator; Package: TSSOP; Pins
LTC3417AEFE-2#PBF Linear

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