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LTC3633EUFD#TRPBF

更新时间： 2024-11-23 19:44:19
品牌 Logo 应用领域
凌特 - Linear 开关
页数 文件大小 规格书
28页 398K
描述
LTC3633 - Dual Channel 3A, 15V Monolithic Synchronous Step-Down Regulator; Package: QFN; Pins: 28; Temperature Range: -40°C to 85°C

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LTC3633EUFD#TRPBF 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, LCC28,.16X.2,20
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.46其他特性：ALSO OPERATES AS LDO REGULATOR
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
最大输入电压：15 V最小输入电压：3.6 V
标称输入电压：12 VJESD-30 代码：R-PQCC-N28
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：28最高工作温度：85 °C
最低工作温度：最大输出电流：4.5 A
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC28,.16X.2,20封装形状：RECTANGULAR
封装形式：CHIP CARRIER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：BUCK最大切换频率：4600 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：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

LTC3633EUFD#TRPBF 数据手册

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LTC3633  
Dual Channel 3A, 15V  
Monolithic Synchronous  
Step-Down Regulator  
FEATURES  
DESCRIPTION  
TheLTC®3633isahighefficiency,dual-channelmonolithic  
synchronous buck regulator using a controlled on-time,  
current mode architecture, with phase lockable switching  
frequency. The two channels can run 180° out of phase,  
which relaxes the requirements for input and output ca-  
pacitance.Theoperatingsupplyvoltagerangeisfrom3.6V  
to 15V, making it suitable for dual cell lithium-ion batteries  
as well as point of load power supply applications from  
a 12V or 5V supply.  
n
3.6V to 15V Input Voltage Range  
n
3A Output Current per Channel  
n
Up to 95% Efficiency  
n
Low Duty Cycle Operation: 5% at 2.25MHz  
n
Selectable 0°/180° Phase Shift Between Channels  
n
Adjustable Switching Frequency: 500kHz to 4MHz  
n
External Frequency Synchronization  
n
Current Mode Operation for Excellent Line and  
Load Transient Response  
n
0.6V Reference Allows Low Output Voltages  
Theoperatingfrequencyisprogrammableandsynchroniz-  
able from 500kHz to 4MHz with an external resistor. The  
high frequency capability allows the use of small surface  
mount inductors and capacitors. The unique constant  
frequency/controlled on-time architecture is ideal for high  
step-downratioapplicationsthatoperateathighfrequency  
whiledemandingfasttransientresponse.Aninternalphase  
lock loop servos the on-timeofthe internalone-shottimer  
to match the frequency of the internal clock or an applied  
external clock.  
User Selectable Burst Mode® Operation or Forced  
n
Continuous Operation  
n
Output Voltage Tracking and Soft-Start Capability  
n
Short-Circuit Protected  
n
Overvoltage Input and Overtemperature Protection  
n
Low Power 2.5V Linear Regulator Output  
Power Good Status Outputs  
n
n
Available in (4mm × 5mm) QFN-28 and 28-Lead  
TSSOP Packages  
The LTC3633 can select between forced continuous mode  
and high efficiency Burst Mode operation.  
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks  
of Linear Technology Corporation. All other trademarks are the property of their respective  
owners. Protected by U.S. Patents including 5481178, 5847554, 6580258, 6304066, 6476589,  
6774611.  
APPLICATIONS  
n
Distributed Power Systems  
Battery Powered Instruments  
n
n
Point of Load Power Supplies  
TYPICAL APPLICATION  
V
IN  
12V  
Efficiency vs Load Current  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
10  
47µF  
x2  
V
V
IN1  
IN2  
Burst Mode  
OPERATION  
RUN1  
RUN2  
INTV  
CC  
ITH1  
ITH2  
RT  
2.2µF  
LTC3633  
MODE/SYNC  
PHMODE  
V2P5  
TRACKSS1  
PGOOD1  
BOOST1  
1
TRACKSS2  
PGOOD2  
BOOST2  
0.1  
0.01  
0.001  
0.1µF  
0.1µF  
1.5µH  
1µH  
V
V
V
V
= 5V  
OUT2  
5V AT 3A  
OUT1  
3.3V AT 3A  
OUT  
OUT  
SW2  
SW1  
V
IN  
= 12V  
= 3.3V  
V
V
ON2  
ON1  
1
10  
100  
1000  
10000  
V
V
FB1  
FB2  
LOAD CURRENT (mA)  
SGND PGND  
73.2k  
45.3k  
3633 TA01b  
10k  
10k  
22µF  
22µF  
3633 TA01a  
3633fd  
1
For more information www.linear.com/LTC3633  
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LTC3633EUFD#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3633EUFD#PBF Linear

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