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LM3100MHX PDF预览

LM3100MHX

更新时间: 2024-02-17 14:34:20
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
15页 1066K
描述
SIMPLE SWITCHER㈢ Synchronous 1MHz 1.5A Step-Down Voltage Regulator

LM3100MHX 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:HSSOP, TSSOP20,.25针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.88其他特性:ALSO HAS ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.8V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:HYSTERETIC CURRENT MODE最大输入电压:36 V
最小输入电压:4.5 V标称输入电压:18 V
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:6.5 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:1.9 A最大输出电压:7 V
最小输出电压:0.8 V标称输出电压:6 V
封装主体材料:PLASTIC/EPOXY封装代码:HSSOP
封装等效代码:TSSOP20,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.1 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:1000 kHz
技术:MOS温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm

LM3100MHX 数据手册

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February 2006  
LM3100  
SIMPLE SWITCHER® Synchronous 1MHz 1.5A  
Step-Down Voltage Regulator  
General Description  
Features  
n Input voltage range 4.5V - 36V  
n 1.5A output current  
n 0.8V, 1.5% reference  
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 VCC under-voltage lockout, thermal shutdown and  
gate drive under-voltage lockout. The part is available in a  
thermally enhanced eTSSOP-20 package  
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  
© 2006 National Semiconductor Corporation  
DS201747  
www.national.com  

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