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参数资料
| 型号： | LT1173CS8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST INV ADJ 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 50 V |
| 输入电压： | 2 V ~ 30 V |
| 频率 - 开关： | 23kHz |
| 电流 - 输出： | 400mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
LT1173
Micropower
DC/DC Converter
Adjustable and Fixed 5V, 12V
FEATURE S
D ESCRIPTIO
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Operates at Supply Voltages From 2.0V to 30V
Consumes Only 110 μ A 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
from 2.0V to 12V in step-up mode and to 30V in step-down
mode. The LT1173 functions equally well in step-up, step-
down or inverting applications.
The LT1173 consumes just 110 μ A supply current at
standby, making it ideal for applications where low quies-
cent current is important. The device can deliver 5V at
A PPLICATI
S
80mA from a 3V input in step-up mode or 5V at 200mA
from a 12V input in step-down mode.
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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.
TYPICAL A PPLICATI
S
Logic Controlled Flash Memory VPP Generator
VPP Output
5V IN
47 ?
L1*
100 μ H
1N5818
12V
100mA
V OUT
5V/DIV
I LIM
V IN
10 μ F
+
LT1173
SW1
1.07M ?
+
SANYO
OS-CON
100 μ F
0V
GND
FB
SW2
124k ?
PROGRAM
5V/DIV
5ms/DIV
1173 TA02
1N4148
PROGRAM
LT1173 ? TA01
*L1 = GOWANDA GA20-103K
COILTRONICS CTX100-4
EFFICIENCY = 81%
? = 1% METAL FILM
NO OVERSHOOT
1
相关PDF资料 |
PDF描述 |
|---|---|
| LT1111CS8-5#TRPBF | IC REG BUCK BST INV 5V .4A 8SOIC |
| LT1111CS8-5#TR | IC REG BUCK BST INV 5V .4A 8SOIC |
| MAX6869UK22D2L+T | IC MPU SUPERVISOR SOT23-5 |
| MAX6869UK23D1S+T | IC MPU SUPERVISOR SOT23-5 |
| MAX6869UK22D6S+T | IC MPU SUPERVISOR SOT23-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT11743 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:High Efficiency Step-Down Switching Regulator Controllers |
| LT1175 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
| LT1175_05 | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA Negative Low Dropout Micropower Regulator |
| LT1175_10 | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA Negative Low Dropout Micropower Regulator |
| LT1175-5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Precision Micropower RMS-to-DC Converter |
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