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LT3680IDD-PBF PDF预览

LT3680IDD-PBF

更新时间: 2024-02-24 02:45:24
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
24页 301K
描述
36V, 3.5A, 2.4MHz Step-Down Switching Regulator with 75μA Quiescent Current

LT3680IDD-PBF 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:MSOP-10
针数:10Reach Compliance Code:compliant
风险等级:5.13其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 0.79V TO 30V
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:36 V
最小输入电压:3.6 V标称输入电压:10 V
JESD-30 代码:S-PDSO-G10JESD-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:125 °C最低工作温度:-40 °C
最大输出电流:6 A封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP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
表面贴装:YES切换器配置:BUCK
最大切换频率:2700 kHz温度等级:AUTOMOTIVE
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 mm
Base Number Matches:1

LT3680IDD-PBF 数据手册

 浏览型号LT3680IDD-PBF的Datasheet PDF文件第2页浏览型号LT3680IDD-PBF的Datasheet PDF文件第3页浏览型号LT3680IDD-PBF的Datasheet PDF文件第4页浏览型号LT3680IDD-PBF的Datasheet PDF文件第5页浏览型号LT3680IDD-PBF的Datasheet PDF文件第6页浏览型号LT3680IDD-PBF的Datasheet PDF文件第7页 
LT3680  
36V, 3.5A, 2.4MHz  
Step-Down Switching Regulator  
with 75µA Quiescent Current  
FEATURES  
DESCRIPTION  
The LT®3680 is an adjustable frequency (200kHz to  
2.4MHz)monolithicbuckswitchingregulatorthataccepts  
Wide Input Voltage Range: 3.6V to 36V  
3.5A Maximum Output Current  
Low Ripple (<15mV ) Burst Mode® Operation:  
input voltages up to 36V. A high efficiency 95m 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. Low ripple Burst Mode operation  
maintains high efficiency at low output currents while  
keeping output ripple below 15mV in a typical application.  
In addition, the LT3680 can further enhance low output  
current efficiency by drawing bias current from the output  
P-P  
IN  
I = 75μA at 12V to 3.3V  
Q
OUT  
Adjustable Switching Frequency: 200kHz to 2.4MHz  
Low Shutdown Current: I < 1μA  
Integrated Boost Diode  
Synchronizable Between 250kHz to 2MHz  
Power Good Flag  
Q
Saturating Switch Design: 95m On-Resistance  
0.790V Feedback Reference Voltage  
Output Voltage: 0.79V to 30V  
Thermal Protection  
Soft-Start Capability  
Small 10-Pin Thermally Enhanced MSOP and  
(3mm × 3mm) DFN Packages  
when V  
is above 3V. Shutdown reduces input supply  
OUT  
current to less than 1μA while a resistor and capacitor on  
the RUN/SS pin provide a controlled output voltage ramp  
(soft-start). A power good flag signals when V  
reaches  
OUT  
91% of the programmed output voltage. The LT3680 is  
available in 10-Pin MSOP and 3mm × 3mm DFN packages  
with exposed pads for low thermal resistance.  
APPLICATIONS  
Automotive Battery Regulation  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
Burst Mode is a registered trademark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Power for Portable Products  
Distributed Supply Regulation  
Industrial Supplies  
Wall Transformer Regulation  
TYPICAL APPLICATION  
5V Step-Down Converter  
Efficiency  
V
OUT  
100  
90  
80  
70  
60  
50  
V
IN  
5V  
6.3V TO 36V  
3.5A  
V
= 12V  
IN  
V
BD  
IN  
RUN/SS  
BOOST  
OFF ON  
V
= 34V  
IN  
V
= 24V  
IN  
0.47μF  
4.7μH  
536k  
15k  
V
C
SW  
LT3680  
GND  
10μF  
RT  
680pF  
PG  
V
= 5V  
OUT  
63.4k  
L = 4.7μH  
SYNC  
FB  
f = 600kHz  
100k  
47μF  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
OUTPUT CURRENT (A)  
3680 G01  
3680 TA01a  
3680fa  
1

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