参数资料
型号: LM2575MX-3.3/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO24
封装: SO-24
文件页数: 24/40页
文件大小: 917K
代理商: LM2575MX-3.3/NOPB
National P/N LM2575 - SIMPLE SWITCHER 1A Step-Down Voltage Regulator
shutdown for full protection under fault conditions.
Features
q
3.3V, 5V, 12V, 15V, and adjustable output versions
q
Adjustable version output voltage range, 1.23V to 37V (57V for HV version) ±4% max over line and
load conditions
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Guaranteed 1A output current
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Wide input voltage range, 40V up to 60V for HV version
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Requires only 4 external components
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52 kHz fixed frequency internal oscillator
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TTL shutdown capability, low power standby mode
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High efficiency
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Uses readily available standard inductors
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Thermal shutdown and current limit protection
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P+ Product Enhancement tested
Applications
q
Simple high-efficiency step-down (buck) regulator
q
Efficient pre-regualtor for linear regulators
q
On-card switching regulators
q
Positive to negative converter (Buck-Boost)
Design Tools
Title
Size in Kbytes Date
View Online Download
Receive via
Email
SimpleSwitcher DC-DC
Converters Design Software
10 Kbytes
12-Jun-
2002
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Application Notes
Title
Size in Kbytes Date
View Online Download Receive via Email
AN-1061: AN-1061 Power
Conversion in Line-Powered
Equipment
142 Kbytes
5-Jan-97 View Online
AN-1229: Application Note 1229
SIMPLE SWITCHER PCB Layout
Guidelines
229 Kbytes
29-Jul-02 View Online
AN-776: Application Note 776 20
Watt Simple Switcher Forward
Converter
387 Kbytes
1-May-98 View Online
If you have trouble printing or viewing PDF file(s), see Printing Problems.
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2575.html (5 of 6) [Aug-09-2002 12:18:39 PM]
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相关代理商/技术参数
参数描述
LM2575MX-5.0 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
LM2575MX-5.0 NOPB 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 4V to 40V 24-Pin SOIC W T/R 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 4V to 40V 24-Pin SOIC T/R
LM2575MX-5.0/NOPB 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
LM2575MX-ADJ 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
LM2575MX-ADJ/NOPB 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT