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LM2591HVS-5.0 Folha de dados(PDF) 1 Page - Texas Instruments

Nome de Peças LM2591HVS-5.0
Descrição Electrónicos  LM2591HV SIMPLE SWITCHER Power onverter 150 kHz 1A Step-Down Voltage
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Página de início  http://www.ti.com
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LM2591HVS-5.0 Folha de dados(HTML) 1 Page - Texas Instruments

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LM2591HV
www.ti.com
SNVS074D – MAY 2001 – REVISED APRIL 2013
LM2591HV SIMPLE SWITCHER®Power Converter 150 kHz 1A Step-Down Voltage
Regulator
Check for Samples: LM2591HV
1
FEATURES
DESCRIPTION
The LM2591HV series of regulators are monolithic
23
3.3V, 5V, and Adjustable Output Versions
integrated circuits that provide all the active functions
Adjustable Version Output Voltage Range,
for a step-down (buck) switching regulator, capable of
1.2V to 57V ±4% Max Over Line and Load
driving a 1A load with excellent line and load
Conditions
regulation. These devices are available in fixed output
voltages of 3.3V, 5V, and an adjustable output
Specified 1A Output Load Current
version.
Available in 5-Pin Package
This series of switching regulators is similar to the
Input Voltage Range Up to 60V
LM2590HV, but without some of the supervisory and
150 kHz Fixed Frequency Internal Oscillator
performance features of the latter.
On/Off Control
Requiring
a
minimum
number
of
external
Low Power Standby Mode, IQ Typically 90 μA
components, these regulators are simple to use and
High Efficiency
include internal frequency compensation†, improved
line and load specifications and a fixed-frequency
Thermal Shutdown and Current Limit
oscillator.
Protection
The LM2591HV operates at a switching frequency of
APPLICATIONS
150 kHz thus allowing smaller sized filter components
than what would be needed with lower frequency
Simple High-Efficiency Step-Down (Buck)
switching regulators. Available in a standard 5-lead
Regulator
package with several different lead bend options, and
Efficient Pre-Regulator for Linear Regulators
a 5-lead Surface mount package.
On-Card Switching Regulators
Other features include a specified ±4% tolerance on
Positive to Negative Converter
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 over temperature
shutdown
for
complete
protection
under
fault
conditions.
† Patent Number 5,382,918.
Typical Application
(Fixed Output Voltage Versions)
Figure 1.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
SIMPLE SWITCHER is a registered trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2001–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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