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參數資料
| 型號： | LM3100 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | SIMPLE SWITCHER㈢ Synchronous 1MHz 1.5A Step-Down Voltage Regulator |
| 中文描述： | 的SIMPLE SWITCHER㈢1MHz的1.5A的同步降壓穩壓器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 1073K |
| 代理商： | LM3100 |
LM3100
SIMPLE SWITCHER
Synchronous 1MHz 1.5A
Step-Down Voltage Regulator
General Description
The LM3100 Synchronously Rectified Buck Converter fea-
tures all functions needed to implement a highly efficient,
cost effective buck regulator capable of supplying 1.5A to
loads with voltages as low as 0.8V. Dual 40V N-Channel
synchronous MOSFET switches allow for low external com-
ponent thus reducing complexity and minimizing board
space. The LM3100 is designed to work exceptionally well
with ceramic and other very low ESR output capacitors. The
Constant ON-Time (COT) regulation scheme requires no
loop compensation, results in fast load transient response,
and simplifies circuit implementation. Through the use of a
unique design the regulator does not rely on output capacitor
ESR for stability, as do most other COT regulators. The
operating frequency remains nearly constant with line and
load variations due to the inverse relationship between the
input voltage and the on-time. The oprating frequency can
be externally programmed up to 1MHz. Protection features
include V
under-voltage lockout, thermal shutdown and
gate drive under-voltage lockout. The part is available in a
thermally enhanced eTSSOP-20 package
Features
n
Input voltage range 4.5V - 36V
n
1.5A output current
n
0.8V,
±
1.5% reference
n
Integrated 40V, dual N-Channel buck synchronous
switches
n
Low component count and small solution size
n
No loop compensation required
n
Ultra-fast transient response
n
Stable with ceramic and other low ESR capacitors
n
Programmable switching frequency up to 1MHz
n
Max. duty cycle limited during start-up
n
Valley current limit
n
Precision Internal Reference for adjustable output
voltage down to 0.8V
n
Thermal shutdown
n
Thermally enhanced eTSSOP-20 package
Typical Applications
n
5VDC, 12VDC, 24VDC, 12VAC, and 24VAC systems
n
Embedded Systems
n
Industrial Controls
n
Automotive Telematics and Body Electronics
n
Point of Load Regulators
n
Storage Systems
n
Broadband Infrastructure
n
Direct Conversion from 2/3/4 Cell Lithium Batteries
Systems
Typical Application
20174702
SIMPLE SWITCHER
is a registered trademark of National Semiconductor Corporation
February 2006
L
S
2006 National Semiconductor Corporation
DS201747
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM3100_07 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ Synchronous 1MHz 1.5A Step-Down Voltage Regulator |
| LM31-00000F-001PG | 功能描述:液位傳感器 0-1psig 0.5-4.5V RoHS:否 制造商:Honeywell 連接方法:3 Pin Connector 電流額定值:60 mA 輸出類型:NPN 端口類型: 壓力范圍:0 bar to 25 bar 描述/功能:Fiber Optics and Liquid Level Sensor |
| LM31-00000F-002PG | 制造商:Measurement Specialties Inc 功能描述:SENSOR 2PSIG 1/2NPT .5-4.5V 12" |
| LM31-00000F-005PG | 功能描述:液位傳感器 0-5psig 0.5-4.5V RoHS:否 制造商:Honeywell 連接方法:3 Pin Connector 電流額定值:60 mA 輸出類型:NPN 端口類型: 壓力范圍:0 bar to 25 bar 描述/功能:Fiber Optics and Liquid Level Sensor |
| LM31-00000F-015PG | 功能描述:Pressure Sensor 15 PSI (103.42 kPa) Vented Gauge Male - 1/2" (12.7mm) NPT 0.5 V ~ 4.5 V Cylinder 制造商:te connectivity measurement specialties 系列:- 零件狀態:有效 壓力類型:排氣式壓力計 工作壓力:15 PSI（103.42 kPa） 輸出類型:模擬電壓 輸出:0.5 V ~ 4.5 V 精度:±1% 電壓 - 電源:4.75 V ~ 5.25 V 端口尺寸:公型 - 1/2"（12.7mm） NPT 端口樣式:有螺紋 特性:放大輸出，溫度補償 端子類型:電纜/引線 最高壓力:45 PSI（310.26 kPa） 工作溫度:-20°C ~ 70°C 封裝/外殼:圓柱型 供應商器件封裝:- 標準包裝:1 |
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