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LT1173CN8 PDF预览

LT1173CN8

更新时间: 2024-11-19 22:34:19
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
16页 322K
描述
Micropower DC/DC Converter Adjustable and Fixed 5V, 12V

LT1173CN8 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:DIP包装说明:DIP, DIP8,.3
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.97模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE FREQUENCY MODULATION
最大输入电压:30 V最小输入电压:2 V
JESD-30 代码:R-PDIP-T8JESD-609代码:e0
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:最大输出电流:1.5 A
标称输出电压:1.245 V封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP8,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:3.937 mm子类别:Switching Regulator or Controllers
表面贴装:NO切换器配置:SINGLE
最大切换频率:23 kHz技术:BIPOLAR
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mm

LT1173CN8 数据手册

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LT1173  
Micropower  
DC/DC Converter  
Adjustable and Fixed 5V, 12V  
U
EATURE  
S
DESCRIPTIO  
F
Operates at Supply Voltages From 2.0V to 30V  
Consumes Only 110µA Supply Current  
Works in Step-Up or Step-Down Mode  
Only Three External Components Required  
Low Battery Detector Comparator On-Chip  
User-Adjustable Current Limit  
Internal 1A Power Switch  
Fixed or Adjustable Output Voltage Versions  
Space Saving 8-Pin MiniDIP or SO8 Package  
The LT1173 is a versatile micropower DC-DC converter.  
The device requires only three external components to  
deliver a fixed output of 5V or 12V. Supply voltage ranges  
from2.0Vto12Vin step-upmodeandto30Vinstep-down  
mode. The LT1173 functions equally well in step-up, step-  
down or inverting applications.  
The LT1173 consumes just 110µA supply current at  
standby, making it ideal for applications where low quies-  
cent current is important. The device can deliver 5V at  
80mA from a 3V input in step-up mode or 5V at 200mA  
from a 12V input in step-down mode.  
O U  
PPLICATI  
S
A
Flash Memory Vpp Generators  
3V to 5V, 5V to 12V Converters  
9V to 5V, 12V to 5V Converters  
LCD Bias Generators  
Peripherals and Add-On Cards  
Battery Backup Supplies  
Laptop and Palmtop Computers  
Cellular Telephones  
Portable Instruments  
Switch current limit can be programmed with a single  
resistor. An auxiliary gain block can be configured as a low  
battery detector, linear post regulator, under voltage lock-  
out circuit or error amplifier.  
For input sources of less than 2V, use the LT1073.  
and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.  
U
O
TYPICAL APPLICATI S  
Logic Controlled Flash Memory VPP Generator  
VPP Output  
L1*  
100µH  
1N5818  
12V  
100mA  
5V  
IN  
47Ω  
VOUT  
5V/DIV  
I
V
IN  
SW1  
LIM  
1.07M†  
0V  
SANYO  
+
+
LT1173  
OS-CON  
10µF  
µ
100  
F
FB  
SW2  
PROGRAM  
5V/DIV  
GND  
124k†  
5ms/DIV  
1173 TA02  
1N4148  
PROGRAM  
LT1173 • TA01  
*L1 = GOWANDA GA20-103K  
COILTRONICS CTX100-4  
EFFICIENCY = 81%  
= 1% METAL FILM  
NO OVERSHOOT  
1

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