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LT3150CGN PDF预览

LT3150CGN

更新时间: 2024-11-21 22:46:51
品牌 Logo 应用领域
凌特 - Linear 稳压器控制器
页数 文件大小 规格书
20页 256K
描述
Fast Transient Response, Low Input Voltage, Very Low Dropout Linear Regulator Controller

LT3150CGN 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP, SSOP16,.25
针数:16Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.2模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:10 V最小输入电压:1.1 V
标称输入电压:1.5 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e0长度:4.8895 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:70 °C
最低工作温度:最大输出电流:0.8 A
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):235
认证状态:Not Qualified座面最大高度:1.727 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:SINGLE最大切换频率:1900 kHz
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3.899 mmBase Number Matches:1

LT3150CGN 数据手册

 浏览型号LT3150CGN的Datasheet PDF文件第2页浏览型号LT3150CGN的Datasheet PDF文件第3页浏览型号LT3150CGN的Datasheet PDF文件第4页浏览型号LT3150CGN的Datasheet PDF文件第5页浏览型号LT3150CGN的Datasheet PDF文件第6页浏览型号LT3150CGN的Datasheet PDF文件第7页 
LT3150  
Fast Transient Response,  
Low Input Voltage, Very Low Dropout  
Linear Regulator Controller  
U
FEATURES  
DESCRIPTIO  
TheLT®3150drivesalowcostexternalN-channelMOSFET  
as a source follower to produce a fast transient response,  
very low dropout voltage linear regulator. Selection of the  
N-channelMOSFETRDS(ON) allowsdropoutvoltagesbelow  
300mV for low VIN to low VOUT applications.  
Fast Transient Response Optimized with  
Ceramic Output Capacitors  
FET RDS(ON) Defines Dropout Voltage  
±1% Reference Tolerance Over Temperature  
Multifunction LDO Shutdown Pin with Latchoff  
Fixed Frequency 1.4MHz Boost Converter Generates  
MOSFET Gate Drive  
The LT3150 includes a fixed frequency boost regulator  
that generates gate drive for the N-channel MOSFET. The  
internally compensated current mode PWM architecture  
combined with the 1.4MHz switching frequency permits  
the use of tiny, low cost capacitors and inductors.  
Internally Compensated Boost Converter Uses Tiny  
Capacitors and Inductor  
Independent Boost Converter Shutdown Control  
Permits LDO Output Voltage Supply Sequencing  
16-Lead SSOP Package  
The LT3150’s transient load performance is optimized  
with ceramic output capacitors. A precision 1.21V refer-  
ence accommodates low voltage supplies.  
U
APPLICATIO S  
Protection includes a high side current limit amplifier that  
activates a fault timer circuit. A multifunction shutdown  
pin provides either current limit time-out with latchoff,  
overvoltageprotectionorthermalshutdown. Independent  
shutdown control of the boost converter provides on/off  
and sequencing control of the LDO output voltage.  
Microprocessor, ASIC and I/O Supplies  
Very Low Dropout Input-to-Output Conversion  
Logic Termination Supplies  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
1.8V to 1.5V, 4A Very Low Dropout Linear Regulator  
(Typical Dropout Voltage = 65mV at IOUT = 4A)  
Transient Response for  
0.1A to 4A Output Load Step  
MBR0520L  
+
L1  
C1  
4.7µF  
6.19k  
1%  
LT3150  
10µH  
5.1Ω  
50mV/DIV  
V
FB1  
SW  
V
IN1  
IN2  
1.37k  
1%  
SHDN2 SHDN1  
SWGND  
GND  
V
IN  
I
I
POS  
1.8V  
C
IN  
+
NEG  
220µF  
2.5V  
×2  
2A/DIV  
Si4410  
GND  
GATE  
FB2  
COMP  
V
1.5V  
4A  
OUT  
243Ω  
1%  
2.2µF ×10  
1.5k  
X5R CERAMIC  
0805 CASE  
3150 TA02  
20µs/DIV  
6800pF  
50pF  
1020Ω  
1%  
C
: PANASONIC SP SERIES EEFUE0E221R 20%  
IN  
C1: AVX TAJA475M020R 20V 20%  
L1: MURATA LQH32CN100K11 OR SUMIDA CDRH3D16100  
3150 TA01  
3150f  
1

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