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LTC1929CG-PG#TRPBF PDF预览

LTC1929CG-PG#TRPBF

更新时间： 2024-01-07 16:18:37
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
32页 379K
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中文翻译

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LTC1929CG-PG#TRPBF 数据手册

 浏览型号LTC1929CG-PG#TRPBF的Datasheet PDF文件第2页浏览型号LTC1929CG-PG#TRPBF的Datasheet PDF文件第3页浏览型号LTC1929CG-PG#TRPBF的Datasheet PDF文件第4页浏览型号LTC1929CG-PG#TRPBF的Datasheet PDF文件第5页浏览型号LTC1929CG-PG#TRPBF的Datasheet PDF文件第6页浏览型号LTC1929CG-PG#TRPBF的Datasheet PDF文件第7页 
LTC1735  
High Efficiency  
Synchronous Step-Down  
Switching Regulator  
U
FEATURES  
DESCRIPTIO  
The LTC®1735 is a synchronous step-down switching  
regulator controller that drives external N-channel power  
MOSFETs using a fixed frequency architecture. Burst  
ModeTM operation provides high efficiency at low load  
currents. The precision 0.8V reference is compatible with  
future generation microprocessors. OPTI-LOOP compen-  
sation allows the transient response to be optimized over  
a wide range of output capacitance and ESR values.  
■
Synchronizable/Programmable Fixed Frequency  
OPTI-LOOPTM Compensation Minimizes COUT  
■
■
±1% Output Voltage Accuracy  
■
■
■
■
■
■
Dual N-Channel MOSFET Synchronous Drive  
Wide VIN Range: 4V to 36V Operation  
VOUT Range: 0.8V to 6V  
Internal Current Foldback  
Output Overvoltage Crowbar Protection  
Latched Short-Circuit Shutdown Timer  
with Defeat Option  
The operating frequency (synchronizable up to 500kHz) is  
set by an external capacitor allowing maximum flexibility  
in optimizing efficiency. A forced continuous control pin  
reduces noise and RF interference and can assist second-  
ary winding regulation by disabling Burst Mode operation  
when the main output is lightly loaded.  
■
■
■
■
■
■
■
Very Low Dropout Operation: 99% Duty Cycle  
Forced Continuous Control Pin  
Optional Programmable Soft-Start  
Remote Output Voltage Sense  
Power Good Output (LTC1735F Only)  
Logic Controlled Micropower Shutdown: IQ < 25µA  
LTC1435 Pin Compatible with  
Protection features include internal foldback current lim-  
iting, output overvoltage crowbar and optional short-  
circuit shutdown. Soft-start is provided by an external  
capacitor that can be used to properly sequence supplies.  
The operating current level is user-programmable via an  
external current sense resistor. Wide input supply range  
allows operation from 4V to 30V (36V maximum).  
Minor Component Changes  
■
Available in 16-Lead Narrow SSOP, SO Packages and  
20-Lead TSSOP Package (LTC1735F Only)  
U
APPLICATIO S  
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Burst Mode and OPTI-LOOP are trademarks of Linear Technology Corporation.  
Notebook and Palmtop Computers, PDAs  
■
Cellular Telephones and Wireless Modems  
■
DC Power Distribution Systems  
U
TYPICAL APPLICATIO  
V
IN  
5V TO 24V  
C
OSC  
C
IN  
C
SS  
0.1µF  
M1  
FDS6680A  
22µF  
C
TG  
OSC  
C
50V  
B
47pF  
0.22µF  
RUN/SS  
C
C
: PANASONIC EEFUEOG181R  
OUT  
: MARCON THCR70E1H226ZT  
IN  
BOOST  
SW  
L1: PANASONIC ETQP6F2R0HFA  
I
TH  
C
C
R
: IRC LRF2010-01-R005J  
SENSE  
330pF  
C
33k  
C
R
C2  
LTC1735  
L1  
2µH  
R
SENSE  
100pF  
D
B
CMDSH-3  
V
0.005Ω  
OUT  
SGND  
V
IN  
1.6V  
R2  
20k  
1%  
100pF  
9A  
V
INTV  
CC  
OSENSE  
C
OUT  
+
180µF  
4V  
+
4.7µF  
D1  
MBRS340T3  
R1  
20k  
1%  
M2  
FDS6680A  
–
SENSE  
SENSE  
BG  
×4  
SP  
1000pF  
+
PGND  
1735 F01  
Figure 1. High Efficiency Step-Down Converter  
1735fc  
1
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中文翻译

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LTC1929CG-PG#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1929IG-PG Linear

类似代替

 2-Phase, High Efficiency,Synchronous Step-Down Switching Regulators
LTC1929CG-PG Linear

功能相似

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