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LT3483

更新时间: 2024-01-18 02:52:43
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
8页 151K
描述
Inverting Micropower DC/DC Converter with Schottky in ThinSOT Package

LT3483 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:DFN包装说明:HVSON, SOLCC8,.08,20
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.38模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制技术:CONSTANT OFF TIME最大输入电压:16 V
最小输入电压:2.5 V标称输入电压:3.6 V
JESD-30 代码:S-PDSO-N8JESD-609代码:e3
长度:2 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:0.23 A标称输出电压:-38 V
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC8,.08,20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):260
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:BOOST技术:BIPOLAR
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.45 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:2 mmBase Number Matches:1

LT3483 数据手册

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LT3483  
Inverting Micropower  
DC/DC Converter with  
Schottky in ThinSOT Package  
U
FEATURES  
DESCRIPTIO  
The LT®3483 is a micropower inverting DC/DC converter  
with integrated Schottky and one resistor feedback. The  
smallpackagesize, highlevelofintegrationanduseoftiny  
surface mount components yield a solution size as small  
as 40mm2. The device features a quiescent current of only  
40µA at no load, which further reduces to 0.1µA in  
shutdown.Acurrentlimited,fixedoff-timecontrolscheme  
conserves operating current, resulting in high efficiency  
over a broad range of load current. A precisely trimmed  
10µA feedback current enables one resistor feedback and  
virtually eliminates feedback loading of the output. The  
40V switch enables voltage outputs up to –38V to be  
generated without the use of costly transformers. The  
LT3483’s low 300ns off-time permits the use of tiny low  
profile inductors and capacitors to minimize footprint and  
cost in space-conscious portable applications.  
Internal 40V Schottky Diode  
One Resistor Feedback (Other Resistor Inside)  
Internal 40V, 200mA Power Switch  
Generates Regulated Negative Outputs to –38V  
Low Quiescent Current:  
40µA in Active Mode  
<1µA in Shutdown Mode  
Low VCESAT Switch: 200mV at 150mA  
Wide Input Range: 2.5V to 16V  
Uses Small Surface Mount Components  
Output Short-Circuit Protected  
Available in a 6-Lead SOT-23 Package  
U
APPLICATIO S  
LCD Bias  
Handheld Computers  
Battery Backup  
The LT3483 is available in the low profile (1mm) SOT-23  
(ThinSOTTM) package.  
Digital Cameras  
OLED Bias  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
Patent pending.  
U
TYPICAL APPLICATIO  
Efficiency and Power Loss  
3.6V to –8V DC/DC Converter  
75  
70  
65  
60  
1000  
100  
10  
V
= 3.6V  
IN  
0.22µF  
10µH  
V
IN  
3.6V  
EFFICIENCY  
10  
SW  
V
OUT  
V
IN  
D
–8V  
25mA  
LT3483  
SHDN  
GND  
4.7µF  
5pF  
806k  
POWER  
LOSS  
FB  
2.2µF  
1
3483 TA01a  
55  
0.1  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
3483 TA01b  
3483f  
1

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