參數(shù)資料
型號： LM2595-3.3MDC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
封裝： DIE
文件頁數(shù)： 26/33頁
文件大小： 1016K
代理商： LM2595-3.3MDC
National P/N LM2595 - SIMPLE SWITCHER Power Converter 150 KHz 1A Step-Down Voltage Regulator
LM2595SX-ADJ TO 263
5
Full
production
N/A
1K+
$1.6200
reel
of
500
[logo]UZ2T
LM2595S
-ADJ P+
LM2595-3.3
MDC
Full
production
N/A
tray
of
N/A
-
LM2595-5.0
MDC
Full
production
N/A
tray
of
N/A
-
LM2595-3.3
MWC
Full
production
N/A
wafer
jar
of
N/A
-
LM2595-5.0
MWC
Full
production
N/A
wafer
jar
of
N/A
-
General Description
The LM2595 series of regulators are monolithic integrated circuits that provide all the active functions for a
step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation.
These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include
internal frequency compensation, and a fixed-frequency oscillator.
The LM2595 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter
components than what would be needed with lower frequency switching regulators. Available in a standard 5-
lead TO-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package.
Typically, for output voltages less than 12V, and ambient temperatures less than 50°C, no heat sink is
required.
A standard series of inductors are available from several different manufacturers optimized for use with the
LM2595 series. This feature greatly simplifies the design of switch-mode power supplies.
Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and
output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring
typically 85 A stand-by current. Self protection features include a two stage frequency reducing current
limit for the output switch and an over temperature shutdown for complete protection under fault conditions.
Features
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3.3V, 5V, 12V, and adjustable output versions
q
Adjustable version output voltage range, 1.2V to 37V ±4% max over line and load conditions
q
Available in TO-220 and TO-263 (surface mount) packages
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Guaranteed 1A output load current
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Input voltage range up to 40V
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Requires only 4 external components
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Excellent line and load regulation specifications
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150 kHz fixed frequency internal oscillator
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TTL shutdown capability
q
Low power standby mode, IQ typically 85 A
q
High efficiency
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Uses readily available standard inductors
q
Thermal shutdown and current limit protection
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2595.html (3 of 4) [Aug-09-2002 2:28:16 PM]
相關(guān)PDF資料
PDF描述
LM2595J-5.0-QML 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, CDIP16
LM2599-5.0MWC 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2599-3.3MDC 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2599-ADJMWC 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
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LM2595DSADJG 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A BUCK SW REG 150KHZ RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2595DSADJR4G 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A BUCK SW REG 150KHZ RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2595S12 制造商:Texas Instruments 功能描述:SWITCHING REG, 1A 12V, SMD, 2595 制造商:Texas Instruments 功能描述:SWITCHING REG, 1A 12V, SMD, 2595; Primary Input Voltage:24V; No. of Outputs:1; Output Voltage:12V; Output Current:1A; Voltage Regulator Case Style:TO-263; No. of Pins:5; Operating Temperature Min:-25C; Operating Temperature ;RoHS Compliant: Yes
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