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LM2590HV Datasheet(PDF) 1 Page - Texas Instruments

Part # LM2590HV
Description  SIMPLE SWITCHER Power Converter
Download  35 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM2590HV Datasheet(HTML) 1 Page - Texas Instruments

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+
330 µF
CIN
CSS
0.1 µF
0.1 µF
CDELAY
LM2590HV
± 5.0
+VIN
1
3
7
Flag
10
+12V
Unregulated
DC Input
Error Flag
Shutdown/Soft - start
SD /SS
5 Delay
4 Gnd
2
6
Output
33 µH
+
D1
1N5824
Feedback
+5.0V
Regulated
Output
1A Load
COUT
220 µF
Copyright © 2016, Texas Instruments Incorporated
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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.
LM2590HV
SNVS084C – DECEMBER 2001 – REVISED JULY 2016
LM2590HV SIMPLE SWITCHER® Power Converter 150-kHz, 1-A Step-Down Voltage
Regulator
1
1 Features
1
3.3-V, 5-V, and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.2 V
to 57 V ±4% Max Over Line and Load Conditions
Ensured 1-A Output Load Current
Available in 7-Pin TO-220 and TO-263 (Surface-
Mount) Package
Input Voltage Range Up To 60 V
150-kHz Fixed Frequency Internal Oscillator
Shutdown and Soft-start
Out Of Regulation Error Flag
Error Flag Delay
Low Power Standby Mode, IQ: 90 µA (Typical)
High Efficiency
Thermal Shutdown And Current Limit Protection
2 Applications
Simple High-Efficiency Step-Down (Buck)
Regulators
Efficient Preregulator For Linear Regulators
On-Card Switching Regulators
Positive-To-Negative Converters
3 Description
The LM2590HV 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, and an adjustable output
version.
This series of switching regulators is similar to the
LM2591HV with additional supervisory and control
features.
Requiring
a
minimum
number
of
external
components, these regulators are simple to use and
include internal frequency compensation, improved
line and load specifications, fixed-frequency oscillator,
Shutdown/Soft-start, output error flag and flag delay.
The LM2590HV 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 7-pin
TO-220 package with several different lead bend
options, and a 7-pin TO-263 surface-mount package.
Other features include an ensured ±4% tolerance on
output voltage under all conditions of input voltage
and output load conditions, and ±15% on the
oscillator frequency. External shutdown is included,
featuring
90-µA
standby
current
(typical).
Self
protection features include a two stage current limit
for the output switch and an over temperature
shutdown
for
complete
protection
under
fault
conditions.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM2590HV
TO-220 (7)
14.99 mm × 10.16 mm
TO-263 (7)
10.10 mm × 8.89 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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