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LTC3633AEUFD#TRPBF PDF预览

LTC3633AEUFD#TRPBF

更新时间： 2024-11-09 20:07:11
品牌 Logo 应用领域
凌特 - Linear 开关
页数 文件大小 规格书
30页 406K
描述
LTC3633A/LTC3633A-1 - Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator; Package: QFN; Pins: 28; Temperature Range: -40°C to 85°C

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LTC3633AEUFD#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：7.5其他特性：ALSO OPERATES IN SUPPLY VOLTAGE 3.6 TO 20 VOLT; BUCK SWITCHING CONFIGURATION ALSO AVAILABLE
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：20 V最小输入电压：1.5 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
标称输出电压：3.3 V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, 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：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：30
宽度：4 mmBase Number Matches：1

LTC3633AEUFD#TRPBF 数据手册

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LTC3633A/LTC3633A-1  
Dual Channel 3A, 20V  
Monolithic Synchronous  
Step-Down Regulator  
FEATURES  
DESCRIPTION  
TheLTC®3633Aisahighefficiency,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 to  
relaxtherequirementsforinputandoutputcapacitance.The  
operatingsupplyvoltagerangeisfrom3.6Vto20V, making  
it suitable for lithium-ion battery stacks as well as point of  
load power supply applications from a 12V or 5V supply.  
n
3.6V to 20V 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  
Theoperatingfrequencyisprogrammablefrom500kHzto  
4MHz with an external resistor and may be synchronized  
to an external clock signal. The high frequency capabil-  
ity allows the use of small surface mount inductors and  
capacitors. The unique constant frequency/controlled on-  
time architecture is ideal for high step-down ratio applica-  
tions that operate at high frequency while demanding fast  
transient response. An internal phase locked loop servos  
the on-time of the internal one-shot timer to match the  
frequencyoftheinternalclockoranappliedexternalclock.  
n
0.6V Reference Allows Low Output Voltages  
User Selectable Burst Mode® Operation or Forced  
n
Continuous Mode Operation  
n
Output Voltage Tracking and Soft-Start Capability  
n
Short-Circuit Protected  
n
Overvoltage Input and Overtemperature Protection  
n
Power Good Status Outputs  
LTC3633: 16V Absolute Maximum V  
n
IN  
IN  
n
LTC3633A: 20V Absolute Maximum V , Pin Compatible  
with LTC3633  
Low Profile (4mm × 5mm) QFN-28 and 28-Lead  
TSSOP Packages  
n
TheLTC3633Acanselectbetweenforcedcontinuousmode  
and high efficiency Burst Mode operation. The LTC3633A  
and LTC3633A-1 differ in their output voltage sense range  
(refer to Table 1 in the Operation section for a description  
of the entire LTC3633A product family).  
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  
n
Battery Powered Instruments  
n
Point of Load Power Supplies  
TYPICAL APPLICATION  
Efficiency vs Load Current  
V
IN  
6V TO 20V  
100  
47µF  
x2  
Burst Mode  
OPERATION  
V
V
IN1  
IN2  
RUN1  
RUN2  
INTV  
CC  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
ITH1  
ITH2  
RT  
2.2µF  
LTC3633A  
MODE/SYNC  
PHMODE  
V2P5  
TRACKSS2  
PGOOD2  
BOOST2  
TRACKSS1  
PGOOD1  
BOOST1  
1.5µH  
1µH  
0.1µF  
0.1µF  
V
V
OUT1  
V
OUT  
V
OUT  
= 5V  
= 3.3V  
OUT2  
5V AT 3A  
SW2  
SW1  
3.3V AT 3A  
V
IN  
= 12V  
V
V
V
ON1  
ON2  
FB2  
0.001  
0.01  
0.1  
1
10  
V
FB1  
SGND PGND  
LOAD CURRENT (A)  
73.2k  
45.3k  
10k  
22µF  
10k  
22µF  
3633a TA01b  
3633a TA01a  
3633a1fb  
For more information www.linear.com/LTC3633A  
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LTC3633AEUFD#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3633AEUFD#PBF Linear

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