參數(shù)資料
型號(hào)： 5962-9650401QEA
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, CDIP16
封裝： CERAMIC, DIP-16
文件頁(yè)數(shù)： 26/33頁(yè)
文件大?。?/td> 1016K
代理商： 5962-9650401QEA
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
q
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
q
Guaranteed 1A output load current
q
Input voltage range up to 40V
q
Requires only 4 external components
q
Excellent line and load regulation specifications
q
150 kHz fixed frequency internal oscillator
q
TTL shutdown capability
q
Low power standby mode, IQ typically 85 A
q
High efficiency
q
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-3.3-QML 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, CDIP16
LM2595-5.0MDC 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2595-5.0MWC 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2595-3.3MDC 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
LM2595J-5.0-QML 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, CDIP16
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