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LT3684EMSE#PBF PDF预览

LT3684EMSE#PBF

更新时间: 2024-02-05 04:13:38
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
24页 314K
描述
LT3684 - 36V, 2A, 2.8MHz Step-Down Switching Regulator; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

LT3684EMSE#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:MSOP包装说明:HTSSOP, TSSOP10,.19,20
针数:10Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:2.98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:34 V最小输入电压:3.6 V
标称输入电压:10 VJESD-30 代码:S-PDSO-G10
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:10最高工作温度:85 °C
最低工作温度:最大输出电流:4 A
封装主体材料:PLASTIC/EPOXY封装代码:HTSSOP
封装等效代码:TSSOP10,.19,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.1 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:3300 kHz
温度等级:OTHER端子面层:Matte Tin (Sn)
端子形式:GULL WING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:30
宽度:3 mmBase Number Matches:1

LT3684EMSE#PBF 数据手册

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LT3684  
36V, 2A, 2.8MHz Step-Down  
Switching Regulator  
FEATURES  
DESCRIPTION  
TheLT®3684isanadjustablefrequency(300kHzto2.8MHz)  
monolithic buck switching regulator that accepts input  
voltages up to 34V (36V maximum). A high efficiency  
0.18Ω switch is included on the die along with a boost  
Schottky diode and the necessary oscillator, control and  
logic circuitry. Current mode topology is used for fast  
transient response and good loop stability. The LT3684’s  
high operating frequency allows the use of small, low cost  
inductors and ceramic capacitors resulting in low output  
ripple while keeping total solution size to a minimum.  
The low current shutdown mode reduces input supply  
current to less than 1µA while a resistor and capacitor on  
the RUN/SS pin provide a controlled output voltage ramp  
Wide Input Range: 3.6V to 34V Operating,  
36V Maximum  
2A Maximum Output Current  
Adjustable Switching Frequency: 300kHz to 2.8MHz  
Low Shutdown Current: I < 1µA  
Integrated Boost Diode  
Power Good Flag  
Saturating Switch Design: 0.18Ω On-Resistance  
1.265V Feedback Reference Voltage  
Output Voltage: 1.265V to 20V  
Soft-Start Capability  
Small 10-Pin Thermally Enhanced MSOP and  
(3mm × 3mm) DFN Packages  
Q
(soft-start). A power good flag signals when V  
reaches  
OUT  
APPLICATIONS  
90% of the programmed output voltage. The LT3684 is  
available in 10-Pin MSOP and 3mm × 3mm DFN packages  
with Exposed Pads for low thermal resistance.  
Automotive Battery Regulation  
Power for Portable Products  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Distributed Supply Regulation  
Industrial Supplies  
Wall Transformer Regulation  
TYPICAL APPLICATION  
3.3V Step-Down Converter  
Efficiency  
V
IN  
V
3.3V  
2A  
90  
80  
OUT  
4.5V TO  
34V  
V
BD  
IN  
RUN/SS  
BOOST  
OFF ON  
16.2k  
0.47µF  
4.7µH  
70  
60  
V
SW  
C
4.7µF  
LT3684  
GND  
RT  
PG  
330pF  
BIAS  
FB  
50  
40  
30  
324k  
60.4k  
V
V
= 12V  
IN  
OUT  
= 3.3V  
200k  
22µF  
L = 4.7µH  
f = 800kHz  
3684 TA01  
0
0.5  
1
1.5  
2
LOAD CURRENT (A)  
3684 TA01b  
3684f  
1

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