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LTC3703EG-5#TRPBF

更新时间： 2024-11-05 13:09:47
品牌 Logo 应用领域
凌特 - Linear 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
32页 444K
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LTC3703EG-5#TRPBF 数据手册

 浏览型号LTC3703EG-5#TRPBF的Datasheet PDF文件第2页浏览型号LTC3703EG-5#TRPBF的Datasheet PDF文件第3页浏览型号LTC3703EG-5#TRPBF的Datasheet PDF文件第4页浏览型号LTC3703EG-5#TRPBF的Datasheet PDF文件第5页浏览型号LTC3703EG-5#TRPBF的Datasheet PDF文件第6页浏览型号LTC3703EG-5#TRPBF的Datasheet PDF文件第7页 
LTC3703-5  
60V Synchronous  
Switching Regulator Controller  
U
FEATURES  
DESCRIPTIO  
The LTC®3703-5 is a synchronous step-down switching  
regulator controller that can directly step-down voltages  
fromupto60V,makingitidealfortelecomandautomotive  
applications. The LTC3703-5 drives external logic level  
N-channel MOSFETs using a constant frequency (up to  
■
High Voltage Operation: Up to 60V  
■
Large 1  
Ω Gate Drivers (with 5V Supply)  
■
■
■
■
■
No Current Sense Resistor Required  
Step-Up or Step-Down DC/DC Converter  
Dual N-Channel MOSFET Synchronous Drive  
Excellent Transient Response and DC Line Regulation  
Programmable Constant Frequency: 100kHz to  
600kHz  
600kHz), voltage mode architecture.  
A precise internal reference provides 1% DC accuracy. A  
high bandwidth error amplifier and patented* line feed  
forward compensation provide very fast line and load  
transient response. Strong 1Ω gate drivers allow the  
LTC3703-5 to drive multiple MOSFETs for higher current  
applications. The operating frequency is user program-  
mable from 100kHz to 600kHz and can also be synchro-  
nized to an external clock for noise-sensitive applications.  
Current limit is programmable with an external resistor  
and utilizes the voltage drop across the synchronous  
MOSFET to eliminate the need for a current sense resistor.  
For applications requiring up to 100V operation, refer to  
the LTC3703 data sheet.  
■
■
■
■
■
■
■
■
±1% Reference Accuracy  
Synchronizable up to 600kHz  
Selectable Pulse Skip Mode Operation  
Low Shutdown Current: 25µA Typ  
Programmable Current Limit  
Undervoltage Lockout  
Programmable Soft-Start  
16-Pin Narrow SUSOP and 28-Pin SSOP Packages  
APPLICATIO S  
■
48V Telecom and Base Station Power Supplies  
Networking Equipment, Servers  
Automotive and Industrial Control  
■
PARAMETER  
LTC3703-5  
LTC3703  
■
Maximum V  
60V  
100V  
IN  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
*U.S. Patent Numbers: 5408150, 5055767, 6677210, 5847554, 5481178, 6304066, 6580258;  
Others Pending.  
MOSFET Gate Drive  
4.5V to 15V  
3.7V  
9.3V to 15V  
8.7V  
+
V
V
UV  
CC  
CC  
–
UV  
3.1V  
6.2V  
U
TYPICAL APPLICATIO  
High Efficiency High Voltage Step-Down Converter  
V
CC  
5V  
Efficiency vs Load Current  
+
V
IN  
100  
95  
90  
85  
80  
22µF  
6V TO 60V  
MMDL770T1  
MODE/SYNC  
V
IN  
V
IN  
= 12V  
+
V
IN  
= 24V  
22µF  
×2  
30k  
FSET  
BOOST  
TG  
Si7850DP  
10k  
COMP  
V
IN  
= 42V  
0.1µF  
1000pF  
LTC3703-5  
470pF  
12k  
8µH  
FB  
I
SW  
V
5V  
5A  
OUT  
21.5k  
1%  
V
MAX  
CC  
10Ω  
+
270µF  
16V  
INV  
DRV  
CC  
Si7850DP  
0.1µF  
RUN/SS  
GND  
BG  
D1  
MBR1100  
10µF  
0
1
2
3
4
5
100Ω  
113k  
1%  
BGRTN  
LOAD CURRENT (A)  
1µF  
37053 TA04b  
2200pF  
37035 TA04  
37035f  
1
1234567...32

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LTC3703EG-5#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3703EG-5#PBF Linear

类似代替

 LTC3703-5 - 60V Synchronous Switching Regulator Controller; Package: SSOP; Pins: 28; Tempe

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