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LM2590HV-AQ-Q1 Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce LM2590HV-AQ-Q1
Description  SIMPLE SWITCHER Power Converter Step-Down Voltage Regulator
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM2590HV-AQ-Q1 Fiches technique(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.
LM2590HV-AQ-Q1
SNOSAC0C – MAY 2004 – REVISED JULY 2016
LM2590HV-AQ-Q1 SIMPLE SWITCHER® Power Converter 150-kHz, 1-A, Step-Down Voltage
Regulator With Features
1
1 Features
1
Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following:
Device Temperature Grade 1: –40°C to
+125°C Ambient Operating Temperature
Device HBM ESD Classification Level 2
Device MM ESD Classification Level M3
3.3-V, 5-V, and Adjustable Output Versions
Adjustable Version Output Voltage Range: 1.2 V
to 57 V ±4% Maximum Over Line and Load
Conditions
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 Typically 90 μA
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
(1)
Patent Number 5,382,918.
3 Description
The LM2590HV-AQ-Q1 regulator is a monolithic
integrated
circuit
which
provides
all
the
active
functions for a step-down (buck) switching regulator,
and is capable of driving a 1-A load with excellent line
and
load
regulation.
The
LM2590HV-AQ-Q1
is
available in fixed output voltages of 3.3 V, 5 V, as
well as an adjustable output version.
The LM2590HV-AQ-Q1 switching regulator is similar
to the LM2591HV with additional supervisory and
performance features.
Requiring
a
minimum
number
of
external
components, these regulators are simple to use and
include internal frequency compensation (1), improved
line and load specifications, fixed-frequency oscillator,
shutdown or soft start, output error flag, and flag
delay.
The LM2590HV-AQ-Q1 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 a ±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
typically
90-μA
standby
current.
Self-protection
features include a two stage current limit for the
output switch and an overtemperature shutdown for
complete protection under fault conditions.
Device Information (a)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM2590HV-AQ-
Q1
DDPAK/TO-263 (7)
10.10 mm × 8.89 mm
TO-220 (5)
14.986 mm × 10.16 mm
(a) 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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