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LM2595S-12 Datasheet(PDF) 1 Page - Texas Instruments

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Part # LM2595S-12
Description  SIMPLE SWITCHER Power Converter 150-kHz 1-A Step-Down Voltage Regulator
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM2595S-12 Datasheet(HTML) 1 Page - Texas Instruments

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM2595
SNVS122C – MAY 1999 – REVISED MAY 2016
LM2595 SIMPLE SWITCHER® Power Converter 150-kHz 1-A Step-Down Voltage Regulator
1
1 Features
1
3.3-V, 5-V, 12-V, and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.2 V
to 37 V ±4% Maximum Over Line and Load
Conditions
Available in TO-220 and TO-263 Surface-Mount
Packages
Ensured 1-A Output Load Current
Input Voltage Range Up to 40 V
Requires Only 4 External Components
Excellent Line and Load Regulation Specifications
150-kHz Fixed-Frequency Internal Oscillator
TTL Shutdown Capability
Low Power Standby Mode, IQ, Typically 85 μA
High Efficiency
Uses Readily Available Standard Inductors
Thermal Shutdown and Current-Limit Protection
2 Applications
Simple High-Efficiency Step-Down (Buck)
Regulator
Efficient Preregulator for Linear Regulators
On-Card Switching Regulators
Positive-to-Negative Converter
3 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 1-A load with excellent line and load
regulation. These devices are available in fixed output
voltages of 3.3 V, 5 V, 12 V, 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-pin TO-220 package with several different
lead bend options, and a 5-pin TO-263 surface-mount
package. Typically, for output voltages less than
12 V, and ambient temperatures less than 50°C, no
heat sink is required.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM2595
TO-263 (5)
10.16 mm × 8.42 mm
TO-220 (5)
14.986 mm × 10.16 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
(Fixed Output Voltage Versions)


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