參數(shù)資料
型號(hào)： LM2577SX-15/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 6 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5
封裝： TO-263, 5 PIN
文件頁(yè)數(shù)： 22/34頁(yè)
文件大?。?/td> 1008K
代理商： LM2577SX-15/NOPB
National P/N LM1577 - SIMPLE SWITCHER Step-Up Voltage Regulator
LM1577K-ADJ
MW8
Full production
N/A
wafer
jar
of
N/A
-
General Description
The LM1577/LM2577 are monolithic integrated circuits that provide all of the power and control functions for
step-up (boost), flyback, and forward converter switching regulators. The device is available in three
different output voltage versions: 12V, 15V, and adjustable.
Requiring a minimum number of external components, these regulators are cost effective, and simple to use.
Listed in this data sheet are a family of standard inductors and flyback transformers designed to work with
these switching regulators.
Included on the chip is a 3.0A NPN switch and its associated protection circuitry, consisting of current and
thermal limiting, and undervoltage lockout. Other features include a 52 kHz fixed-frequency oscillator that
requires no external components, a soft start mode to reduce in-rush current during start-up, and current
mode control for improved rejection of input voltage and output load transients.
Features
q
Requires few external components
q
NPN output switches 3.0A, can stand off 65V
q
Wide input voltage range: 3.5V to 40V
q
Current-mode operation for improved transient response, line regulation, and current limit
q
52 kHz internal oscillator
q
Soft-start function reduces in-rush current during start-up
q
Output switch protected by current limit, under-voltage lockout, and thermal shutdown
Applications
q
Simple boost regulator
q
Flyback and forward regulators
q
Multiple-output regulator
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.
[Information as of 5-Aug-2002]
Search
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM1577.html (2 of 3) [Aug-09-2002 12:20:01 PM]
相關(guān)PDF資料
PDF描述
LM2578N 0.75 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDIP8
LM2591HVADJMWC 3 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2592HVADJMWC 4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2593HV3.3MWC 4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2593HV5.0MDC 4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2577SX-ADJ 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2577SX-ADJ/NOPB 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2577T-12 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2577T12 制造商:Texas Instruments 功能描述:SWITCHING REG 3A 12V 2577 TO2205
LM2577T-12/LB03 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*