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LT3493EDCB-3 PDF预览

LT3493EDCB-3

更新时间: 2024-09-12 05:43:31
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
20页 393K
描述
1.2A, 750kHz Step-Down Switching Regulator in 2mm × 3mm DFN

LT3493EDCB-3 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:DFN包装说明:HVSON,
针数:6Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.22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:6.8 V
标称输入电压:12 VJESD-30 代码:R-PDSO-N6
JESD-609代码:e0长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:6最高工作温度:85 °C
最低工作温度:最大输出电流:2.2 A
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):235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:815 kHz
温度等级:OTHER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:DUAL处于峰值回流温度下的最长时间:20
宽度:2 mmBase Number Matches:1

LT3493EDCB-3 数据手册

 浏览型号LT3493EDCB-3的Datasheet PDF文件第2页浏览型号LT3493EDCB-3的Datasheet PDF文件第3页浏览型号LT3493EDCB-3的Datasheet PDF文件第4页浏览型号LT3493EDCB-3的Datasheet PDF文件第5页浏览型号LT3493EDCB-3的Datasheet PDF文件第6页浏览型号LT3493EDCB-3的Datasheet PDF文件第7页 
LT3493-3  
1.2A, 750kHz Step-Down  
Switching Regulator in  
2mm × 3mm DFN  
U
FEATURES  
DESCRIPTIO  
The LT®3493-3 is a current mode PWM step-down DC/DC  
converter with an internal 1.75A power switch. The wide  
operatinginputrangeof6.8Vto36V(40Vmaximum)makes  
the LT3493-3 ideal for regulating power from a wide vari-  
ety of sources, including unregulated wall transformers,  
24V industrial supplies and automotive batteries. Its high  
operating frequency allows the use of tiny, low cost induc-  
tors and ceramic capacitors, resulting in low, predictable  
output ripple.  
Wide Input Range: 6.8V to 36V Operating,  
40V Maximum  
1.2A Output Current  
Fixed Frequency Operation: 750kHz  
Output Adjustable Down to 780mV  
Short-Circuit Robust  
Uses Tiny Capacitors and Inductors  
Soft-Start  
Internally Compensated  
Low Shutdown Current: <2µA  
Low VCESAT Switch: 330mV at 1A  
Thermally Enhanced, Low Profile 2mm × 3mm  
DFN-6 Package  
Cycle-by-cycle current limit provides protection against  
shorted outputs and soft-start eliminates input current  
surge during start-up. The low current (<2µA) shutdown  
mode provides output disconnect, enabling easy power  
management in battery-powered systems.  
U
APPLICATIO S  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Automotive Battery Regulation  
Industrial Control Supplies  
Wall Transformer Regulation  
Distributed Supply Regulation  
Battery-Powered Equipment  
U
TYPICAL APPLICATIO  
Efficiency  
3.3V Step-Down Converter  
90  
V
OUT  
3.3V  
V
IN  
85  
80  
75  
70  
65  
60  
55  
50  
V
BOOST  
LT3493-3  
IN  
6.8V TO 36V  
1.2A, V > 12V  
1.1A, V > 8V  
IN  
IN  
0.1µF  
10µH  
SW  
ON OFF  
SHDN  
32.4k  
10k  
22pF  
GND  
FB  
10µF  
1µF  
3493-3 TA01a  
V
V
= 12V  
IN  
OUT  
= 3.3V  
L = 10µH  
0.8  
LOAD CURRENT (A)  
1.0  
0
0.2  
0.4  
0.6  
1.2  
3493-3 TA01b  
3493-3f  
1

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