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LTC3409EDD#TR PDF预览

LTC3409EDD#TR

更新时间: 2024-02-06 05:10:38
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
20页 210K
描述
LTC3409 - 600mA Low VIN Buck Regulator in 3mm x 3mm DFN; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C

LTC3409EDD#TR 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVSON,
针数:8Reach Compliance Code:compliant
风险等级:5.17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:5.5 V最小输入电压:1.6 V
标称输入电压:2.2 VJESD-30 代码:S-PDSO-N8
JESD-609代码:e3长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:1.3 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):250认证状态:Not Qualified
座面最大高度:0.8 mm表面贴装:YES
切换器配置:BUCK最大切换频率:3000 kHz
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

LTC3409EDD#TR 数据手册

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LTC3602  
2.5A, 10V, Monolithic  
Synchronous Step-Down  
Regulator  
FEATURES  
DESCRIPTION  
TheLTC®3602isahighefficiency,monolithicsynchronous,  
step-downDC/DCconverterutilizingaconstant-frequency,  
currentmodearchitecture.Itoperatesfromaninputvoltage  
range of 4.5V to 10V and provides an adjustable regulated  
output voltage from 0.6V to 9.5V while delivering up to  
2.5A of output current. The internal synchronous power  
switch with 65mΩ on-resistance increases efficiency  
and eliminates the need for an external Schottky diode.  
The switching frequency can either be set by an external  
resistororsynchronizedtoanexternalclock. OPTI-LOOP®  
compensationallowsthetransientresponsetobeoptimized  
over a wide range of loads and output capacitors.  
n
Wide Input Voltage Range: 4.5V to 10V  
n
2.5A Output Current  
n
Low R  
Internal Switches: 65mΩ and 90mΩ  
DS(ON)  
n
n
n
n
n
n
n
n
n
Programmable Frequency: 300kHz to 3MHz  
Low Quiescent Current: 75μA  
0.6V 1ꢀ Reference Allows Low Output Voltage  
99ꢀ Maximum Duty Cycle  
Adjustable Burst Mode® Clamp  
Synchronizable to External Clock  
Power Good Output Voltage Monitor  
Overtemperature Protection  
Available in 16-Lead Exposed TSSOP and  
4mm × 4mm QFN Packages  
The LTC3602 can be configured for either Burst Mode op-  
erationorforcedcontinuousoperation.Forcedcontinuous  
operation reduces noise and RF interference, while Burst  
Mode operation provides the high efficiency at light loads.  
In Burst Mode operation, external control of the burst  
clamp level allows the output voltage ripple to be adjusted  
according to the requirements of the application.  
APPLICATIONS  
n
Point-of-Load Supplies  
n
Portable Instruments  
n
Server Backplane Power  
Battery-Powered Devices  
n
, LT, LTC, LTM, Burst Mode and OPTI-LOOP are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
3.3V, 2.5A, 1MHz Step-Down Regulator  
Efficiency and Power Loss vs Load Current  
100  
95  
90  
85  
80  
75  
70  
65  
60  
10000  
1000  
100  
10  
V
IN  
V
= 7V  
IN  
4.5V TO 10V  
EFFICIENCY  
22μF  
1μF  
PV  
INTV  
IN  
CC  
RUN  
BOOST  
POWER LOSS  
0.22μF  
2.2μH  
R
T
V
3.3V  
2.5A  
OUT  
105k  
PGOOD  
TRACK/SS  
SW  
LTC3602  
100μF  
4.32k  
1nF  
I
PGND  
TH  
1
10  
SYNC/MODE  
V
FB  
0.01  
0.1  
1
475k  
22pF  
LOAD CURRENT (A)  
3602 TA01b  
105k  
3602 TA01  
3602fb  
1

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