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LTC3425EUH#TR PDF预览

LTC3425EUH#TR

更新时间: 2024-09-24 19:44:55
品牌 Logo 应用领域
凌特 - Linear 开关
页数 文件大小 规格书
24页 305K
描述
LTC3425 - 5A, 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter; Package: QFN; Pins: 32; Temperature Range: -40°C to 85°C

LTC3425EUH#TR 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:QFN包装说明:VQCCN, LCC32,.2SQ,20
针数:32Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.18模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:4.5 V最小输入电压:0.5 V
标称输入电压:1.2 VJESD-30 代码:S-PQCC-N32
JESD-609代码:e0长度:5 mm
湿度敏感等级:1功能数量:1
端子数量:32最高工作温度:70 °C
最低工作温度:最大输出电流:7 A
标称输出电压:5.25 V封装主体材料:PLASTIC/EPOXY
封装代码:VQCCN封装等效代码:LCC32,.2SQ,20
封装形状:SQUARE封装形式:CHIP CARRIER, VERY THIN PROFILE
峰值回流温度(摄氏度):255认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Other Analog ICs
表面贴装:YES切换器配置:PHASE-SHIFT
最大切换频率:2000 kHz技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
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:40
宽度:5 mmBase Number Matches:1

LTC3425EUH#TR 数据手册

 浏览型号LTC3425EUH#TR的Datasheet PDF文件第2页浏览型号LTC3425EUH#TR的Datasheet PDF文件第3页浏览型号LTC3425EUH#TR的Datasheet PDF文件第4页浏览型号LTC3425EUH#TR的Datasheet PDF文件第5页浏览型号LTC3425EUH#TR的Datasheet PDF文件第6页浏览型号LTC3425EUH#TR的Datasheet PDF文件第7页 
LTC3425  
5A, 8MHz, 4-Phase  
Synchronous Step-Up  
DC/DC Converter  
U
FEATURES  
DESCRIPTIO  
High Efficiency: Up to 95%  
The LTC®3425 is a synchronous, 4-phase boost converter  
with output disconnect capable of operation below 1V  
input. It includes four N-channel MOSFET switches and  
four P-channel synchronous rectifiers for an effective  
RDS(ON) of 0.045and 0.05, respectively. 4-phase  
operation greatly reduces peak inductor currents, and  
capacitor ripple current, and increases effective switching  
frequency, minimizing inductor and capacitor sizes. True  
output disconnect eliminates inrush current and allows  
zero load current in shutdown. External Schottky diodes  
arenotrequiredinmostapplications(VOUT <4.3V).Power  
saving Burst Mode operation can be user controlled or left  
in automatic mode.  
Up to 3A Continuous Output Current  
4-Phase Operation for Low Output Ripple  
and Tiny Solution Size  
Output Disconnect and Inrush Current Limiting  
Very Low Quiescent Current: 12µA  
0.5V to 4.5V Input Range  
2.4V to 5.25V Adjustable Output Voltage  
Adjustable Current Limit  
Adjustable, Fixed Frequency Operation from  
100kHz to 2MHz per Phase  
Synchronizable Oscillator with Sync Output  
Internal Synchronous Rectifiers  
Manual or Automatic Burst Mode® Operation  
Other features include 1µA shutdown current, program-  
mable frequency with sync in and out, programmable  
soft-start, antiringing control, thermal shutdown, adjust-  
able current limit, reference output and power good  
comparator.  
Power Good Comparator  
<1µA Shutdown Current  
Antiringing Control  
5mm × 5mm Thermally Enhanced QFN Package  
U
APPLICATIO S  
The LTC3425 is available in a small, thermally enhanced  
32-pin QFN package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Burst Mode is a registered trademark of Linear Technology Corporation.  
Handheld Computers  
Point-of-Load Regulators  
3.3V to 5V Conversion  
U
TYPICAL APPLICATIO  
V
IN  
2V TO 3V  
2.2µF  
2.7µH 2.7µH 2.7µH 2.7µH  
100  
90  
V
SWA  
SWB  
LTC3425  
GNDB  
SWC  
SWD  
IN  
V
V
V
V
V
OUTS  
OUTA  
OUTB  
OUTC  
SHDN  
OFF ON  
80  
Burst Mode FIXED  
REFOUT  
CCM  
OPERATION FREQUENCY  
MODE  
70  
60  
50  
40  
30  
20  
10  
0
V
3.3V  
2A  
OUT  
OUTD  
4.7µF  
×4  
REFEN  
SYNCIN  
BURST  
1M  
10k  
22pF  
FB  
COMP  
SS  
SYNCOUT  
PGOOD  
V
V
= 2.4V  
IN  
OUT  
0.01µF  
R
T
590k  
330pF  
= 3.3V  
f = 1MHz/PHASE  
I
LIM  
SGND  
15k  
75k  
L = 2.7µH  
33k  
GNDA  
GNDC GNDD  
0.1  
1
10  
100  
1000  
10000  
0.01µF  
20k  
LOAD CURRENT (mA)  
3425 TA01  
3425 TA02  
C
C
: TAIYO YUDEN JMK107BJ225MA  
OUT  
L1-L4: TDK RLF5018T-2R7M1R8  
IN  
: TAIYO YUDEN JMK212BJ475MG (×4)  
3425f  
1

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