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LM2574N-5G

Description
5.0V
CategoryPower/power management    The power supply circuit   
File Size246KB,26 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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LM2574N-5G Overview

5.0V

LM2574N-5G Parametric

Parameter NameAttribute value
Brand NameON Semiconductor
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerON Semiconductor
Parts packaging codeDIP
package instructionDIP, DIP8,.3
Contacts8
Manufacturer packaging code626-05
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time10 weeks
Samacsys DescriptionON SEMICONDUCTOR - LM2574N-5G - Buck (Step Down) Switching Regulator, Fixed, 4.7V-40V In, 5V And 0.5A Out, 63 kHz, DIP-8
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Maximum input voltage40 V
Minimum input voltage7 V
Nominal input voltage12 V
JESD-30 codeR-PDIP-T8
JESD-609 codee3
length9.78 mm
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current1.8 A
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP8,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height4.45 mm
surface mountNO
Switch configurationBUCK
Maximum switching frequency63 kHz
technologyBIPOLAR
Temperature levelAUTOMOTIVE
Terminal surfaceMatte Tin (Sn) - annealed
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width7.62 mm
LM2574, NCV2574
0.5 A, Adjustable Output
Voltage, Step-Down
Switching Regulator
The LM2574 series of regulators are monolithic integrated circuits
ideally suited for easy and convenient design of a step−down
switching regulator (buck converter). All circuits of this series are
capable of driving a 0.5 A load with excellent line and load regulation.
These devices are available in fixed output voltages of 3.3 V, 5.0 V,
12 V, 15 V, and an adjustable output version.
These regulators were designed to minimize the number of external
components to simplify the power supply design. Standard series of
inductors optimized for use with the LM2574 are offered by several
different inductor manufacturers.
Since the LM2574 converter is a switch−mode power supply, its
efficiency is significantly higher in comparison with popular
three−terminal linear regulators, especially with higher input voltages.
In most cases, the power dissipated by the LM2574 regulator is so low,
that the copper traces on the printed circuit board are normally the only
heatsink needed and no additional heatsinking is required.
The LM2574 features include a guaranteed
±4%
tolerance on output
voltage within specified input voltages and output load conditions, and
±10%
on the oscillator frequency (±2% over 0°C to +125°C). External
shutdown is included, featuring 60
mA
(typical) standby current. The
output switch includes cycle−by−cycle current limiting, as well as
thermal shutdown for full protection under fault conditions.
Features
www.onsemi.com
16
1
SO−16 WB
DW SUFFIX
CASE 751G
8
1
PDIP−8
N SUFFIX
CASE 626
PIN CONNECTIONS
3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
Adjustable Version Output Voltage Range, 1.23 to 37 V
±4%
max
over Line and Load Conditions
Guaranteed 0.5 A Output Current
Wide Input Voltage Range: 4.75 to 40 V
Requires Only 4 External Components
52 kHz Fixed Frequency Internal Oscillator
TTL Shutdown Capability, Low Power Standby Mode
High Efficiency
Uses Readily Available Standard Inductors
Thermal Shutdown and Current Limit Protection
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Pb−Free Packages are Available*
Simple and High−Efficiency Step−Down (Buck) Regulators
Efficient Pre−regulator for Linear Regulators
On−Card Switching Regulators
Positive to Negative Converters (Buck−Boost)
Negative Step−Up Converters
Power Supply for Battery Chargers
*
*
FB
Sig Gnd
ON/OFF
Pwr Gnd
*
*
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
*
*
Output
*
V
in
*
*
*
(Top View)
FB
Sig Gnd
ON/OFF
Pwr Gnd
1
2
3
4
8
7
6
5
*
Output
*
V
in
(Top View)
* No internal connection, but should be soldered to
*
PC board for best heat transfer.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 24 of this data sheet.
Applications
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 24 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2015
1
January, 2015 − Rev. 9
Publication Order Number:
LM2574/D

LM2574N-5G Related Products

LM2574N-5G LM2574N-12G
Description 5.0V Output current: 500mA Switching operating frequency: 52kHz Output type: Fixed Number of output voltage channels: 1 Function type: Step-Up, Step-Down, Step-Up/Step-Down Output configuration: Positive or Negative
Brand Name ON Semiconductor ON Semiconductor
Is it lead-free? Lead free Lead free
Is it Rohs certified? conform to conform to
Maker ON Semiconductor ON Semiconductor
Parts packaging code DIP DIP
package instruction DIP, DIP8,.3 DIP, DIP8,.3
Contacts 8 8
Manufacturer packaging code 626-05 626-05
Reach Compliance Code compliant compliant
ECCN code EAR99 EAR99
Factory Lead Time 10 weeks 1 week
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