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LTC3785EUF#PBF PDF预览

LTC3785EUF#PBF

更新时间： 2024-09-15 13:09:51
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 420K
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LTC3785EUF#PBF 数据手册

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LTM4609  
36V , 34V High Efficiency  
IN  
OUT  
Buck-Boost DC/DC  
µModule Regulator  
Features  
Description  
n
Single Inductor Architecture Allows V Above,  
The LTM®4609 is a high efficiency switching mode buck-  
boost power supply. Included in the package are the  
switchingcontroller,powerFETsandsupportcomponents.  
Operating over an input voltage range of 4.5V to 36V, the  
LTM4609 supports an output voltage range of 0.8V to  
34V, set by a resistor. This high efficiency design delivers  
up to 4A continuous current in boost mode (10A in buck  
mode). Only the inductor, sense resistor, bulk input and  
output capacitors are needed to finish the design.  
IN  
Below or Equal to V  
OUT  
n
n
n
n
n
n
n
n
n
n
n
Wide V Range: 4.5V to 36V  
IN  
OUT  
Wide V  
OUT  
Range: 0.8V to 34V  
I
: 4A DC (10A DC in Buck Mode)  
Up to 98% Efficiency  
Current Mode Control  
Power Good Output Signal  
Phase-Lockable Fixed Frequency: 200kHz to 400kHz  
Ultrafast Transient Response  
Current Foldback Protection  
Output Overvoltage Protection  
Thelowprofilepackageenablesutilizationofunusedspace  
on the bottom of PC boards for high density point of load  
regulation. The high switching frequency and current  
mode architecture enable a very fast transient response  
to line and load changes without sacrificing stability. The  
LTM4609 can be frequency synchronized with an external  
clock to reduce undesirable frequency harmonics.  
RoHS Compliant with Pb-Free Finish:  
Gold Finish LGA (e4) or SAC 305 BGA (e1)  
Small Surface Mount Footprint, Low Profile  
(15mm × 15mm × 2.82mm) LGA and  
(15mm × 15mm × 3.42mm) BGA Packages  
n
Faultprotectionfeaturesincludeovervoltageandfoldback  
current protection. The DC/DC µModule® regulator is  
offered in small thermally enhanced 15mm × 15mm ×  
2.82mm LGA and 15mm × 15mm × 3.42mm BGA pack-  
ages. TheLTM4609isRoHScompliantwithPb-freefinish.  
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode and PolyPhase are  
applications  
n
Telecom, Servers and Networking Equipment  
n
Industrial and Automotive Equipment  
n
High Power Battery-Operated Devices  
registered trademarks and No R  
is a trademark of Linear Technology Corporation. All other  
SENSE  
trademarks are the property of their respective owners.  
typical application  
Efficiency and Power Loss  
vs Input Voltage  
30V/2A Buck-Boost DC/DC µModule Regulator with 6.5V to 36V Input  
V
IN  
99  
98  
97  
96  
95  
94  
93  
92  
91  
6
5
4
3
2
1
0
CLOCK SYNC  
6.5V TO 36V  
10µF  
50V  
V
30V  
2A  
OUT  
V
PLLIN  
IN  
V
OUT  
+
10µF  
50V  
330µF  
50V  
FCB  
ON/OFF  
RUN  
LTM4609  
5.6µH  
SW1  
SW2  
R
SENSE  
+
SENSE  
R2  
0.1µF  
15mΩ  
×2  
–
SS  
SENSE  
EFFICIENCY  
POWER LOSS  
SGND  
V
FB  
PGND  
2.74k  
24  
(V)  
28  
36  
8
12  
16  
20  
V
32  
IN  
4609 TA01a  
4609 TA01b  
4609fc  
1
1234567...28

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LTC3785EUF#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3785IUF#PBF Linear

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