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LTC3731IG#PBF PDF预览

LTC3731IG#PBF

更新时间: 2024-11-13 13:00:27
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
16页 201K
描述
LTC3731 - 3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller; Package: SSOP; Pins: 24; Temperature Range: -40°C to 85°C

LTC3731IG#PBF 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP, SSOP36,.3
针数:24Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.42Is Samacsys:N
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:32 V
最小输入电压:4.5 V标称输入电压:5 V
JESD-30 代码:R-PDSO-G36JESD-609代码:e3
长度:12.8 mm湿度敏感等级:1
功能数量:1端子数量:36
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:5 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP36,.3
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:2 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:750 kHz技术:CMOS
温度等级:INDUSTRIAL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:5.3 mmBase Number Matches:1

LTC3731IG#PBF 数据手册

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LT3782  
2-Phase Step-Up  
DC/DC Controller  
U
DESCRIPTIO  
FEATURES  
2-Phase Operation Reduces Required Input and  
The LT®3782 is a current mode two phase step-up DC/DC  
converter controller. Its high switching frequency (up to  
500kHz) and 2-phase operation reduce system filtering  
capacitance and inductance requirements.  
Output Capacitance  
Programmable Switching Frequency:  
150kHz to 500kHz  
6V to 40V Input Range  
10V Gate Drive with VCC 13V  
High Current Gate Drive (4A)  
With 10V gate drive (VCC 13V) and 4A peak drive current,  
the LT3782 can drive most industrial grade high power  
MOSFETs with high efficiency. For synchronous applica-  
tions, the LT3782 provides synchronous gate signals with  
programmable falling edge delay to avoid cross conduc-  
tion when using external MOSFET drivers. Other features  
include programmable undervoltage lockout, soft-start,  
current limit, duty cycle clamp (50% or higher) and slope  
compensation.  
Programmable Soft-Start and Current Limit  
Programmable Slope Compensation for  
High Noise Immunity  
MOSFET Gate Signals with Programmable  
Falling Edge Delay for External Synchronous  
Drivers  
Programmable Undervoltage Lockout  
The LT3782 is available in a thermally enhanced 28-lead  
SSOP package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents including 6144194.  
Programmable Duty Cycle Clamp (50% or Higher)  
Thermally EnhanUced 28-Lead SSOP Package  
APPLICATIO S  
Industrial Equipment  
Telecom Infrastructure  
Interleaved Isolated Power Supply  
U
TYPICAL APPLICATIO  
50V 4A Boost Converter  
V
V
IN  
10V TO 36V  
OUT  
50V, 4A  
L1  
L2  
C
D1  
OUT1  
Efficiency and Power Loss  
vs Load Current  
V
GBIAS1  
CC  
10µF  
50V  
2x  
30BQ060  
1µF  
R6  
+
GBIAS2  
GBIAS  
C3  
2µF  
825k  
D2  
97  
95  
93  
91  
89  
87  
85  
18  
15  
12  
9
+
C
OUT2  
220µF  
C
30BQ060  
IN  
V
IN  
= 24V  
RUN  
M1  
EFFICIENCY  
10µF  
50V  
2x  
BGATE1  
Si7852dp  
2x  
R8  
274k  
V
IN  
= 12V  
R
LT3782  
S1  
0.004  
V
R
V
IN  
= 12V  
EE1  
SLOPE  
59k  
M2  
Si7852dp  
2x  
SLOPE  
DELAY  
DCL  
BGATE2  
V
IN  
= 24V  
6
L1, L2: PB2020.223  
, C : X7R, TDK  
C
R
IN OUT1  
FREQ  
80k  
R
POWER LOSS  
S2  
0.004Ω  
3
R
SET  
V
EE2  
+
10Ω  
10Ω  
10nF  
0
SS  
0
1
2
3
4
5
SENSE1  
SENSE1  
0.1µF  
I
(A)  
OUT  
10nF  
3782 TA01b  
R
F1  
475k  
V
C
+
13k  
6.8nF  
SENSE2  
SENSE2  
100pF  
R
F2  
24.9k  
FB  
GND  
3782 TA01  
3782fa  
1

LTC3731IG#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3731IG#TRPBF Linear

完全替代

LTC3731 - 3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller; Package: SSOP;

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