Product Training Modules Powering FPGAs with SIMPLE SWITCHER® LMZ3 Power Modules
Video File Wide VIN Power Design with LMZ3 SIMPLE SWITCHER Power Module
SIMPLE SWITCHER® Power Modules with High Power Density
SIMPLE SWITCHER Synchronous Regulator Family Overview
Layout Tips for Radiated EMI Reduction in Your Designs
Thermal Design Made Simple
Loop Compensation Made SIMPLE
WEBENCH PCB Export for Synchronous SIMPLE SWITCHER Devices
Featured Product Create your power design now with TI’s WEBENCH® Designer
Power Management
PCN Assembly/Origin GFAB to FFAB 22/Mar/2017
Manufacturer Product Page LM2576HVT-5.0/NOPB Specifications
EDA / CAD Models ? Download from Ultra Librarian
Online Catalog Buck (Step-Down) IC

Categories Integrated Circuits (ICs)
PMIC - Voltage Regulators - DC DC Switching Regulators
Manufacturer Texas Instruments
Series SIMPLE SWITCHER®
Packaging ? Tube ?
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) -
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case TO-220-5
Supplier Device Package TO-220-5
Base Part Number LM2576

Product Training Modules Powering FPGAs with SIMPLE SWITCHER® LMZ3 Power Modules
Video File Wide VIN Power Design with LMZ3 SIMPLE SWITCHER Power Module
SIMPLE SWITCHER® Power Modules with High Power Density
SIMPLE SWITCHER Synchronous Regulator Family Overview
Layout Tips for Radiated EMI Reduction in Your Designs
Thermal Design Made Simple
Loop Compensation Made SIMPLE
WEBENCH PCB Export for Synchronous SIMPLE SWITCHER Devices
Featured Product Create your power design now with TI’s WEBENCH® Designer
Power Management
PCN Assembly/Origin GFAB to FFAB 22/Mar/2017
Manufacturer Product Page LM2576HVT-5.0/NOPB Specifications
EDA / CAD Models ? Download from Ultra Librarian
Online Catalog Buck (Step-Down) IC

Description
The LM2576 series of regulators are monolithic
integrated circuits that provide all the active functions
for a step-down (buck) switching regulator, capable of
driving 3-A load with excellent line and load
regulation. These devices are available in fixed output
voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable
output version.
Requiring a minimum number of external
components, these regulators are simple to use and
include fault protection and a fixed-frequency
oscillator.
The LM2576 series offers a high-efficiency
replacement for popular three-terminal linear
regulators. It substantially reduces the size of the
heat sink, and in some cases no heat sink is
required.
A standard series of inductors optimized for use with
the LM2576 are available from several different
manufacturers. This feature greatly simplifies the
design of switch-mode power supplies.
Other features include a 4% tolerance on output
voltage within specified input voltages and output
load conditions, and 10% on the oscillator
frequency. External shutdown is included, featuring
50-μA (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as
thermal shutdown for full protection under fault
conditions.

Categories Integrated Circuits (ICs)
PMIC - Voltage Regulators - DC DC Switching Regulators
Manufacturer Texas Instruments
Series SIMPLE SWITCHER®
Packaging ? Tube ?
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) -
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case TO-220-5 Formed Leads
Supplier Device Package TO-220-5
Base Part Number LM2576

Description
The LM2576 series of regulators are monolithic
integrated circuits that provide all the active functions
for a step-down (buck) switching regulator, capable of
driving 3-A load with excellent line and load
regulation. These devices are available in fixed output
voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable
output version.
Requiring a minimum number of external
components, these regulators are simple to use and
include fault protection and a fixed-frequency
oscillator.
The LM2576 series offers a high-efficiency
replacement for popular three-terminal linear
regulators. It substantially reduces the size of the
heat sink, and in some cases no heat sink is
required.
A standard series of inductors optimized for use with
the LM2576 are available from several different
manufacturers. This feature greatly simplifies the
design of switch-mode power supplies.
Other features include a 4% tolerance on output
voltage within specified input voltages and output
load conditions, and 10% on the oscillator
frequency. External shutdown is included, featuring
50-μA (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as
thermal shutdown for full protection under fault
conditions.

Product Training Modules Powering FPGAs with SIMPLE SWITCHER® LMZ3 Power Modules
Video File Wide VIN Power Design with LMZ3 SIMPLE SWITCHER Power Module
SIMPLE SWITCHER® Power Modules with High Power Density
SIMPLE SWITCHER Synchronous Regulator Family Overview
Layout Tips for Radiated EMI Reduction in Your Designs
Thermal Design Made Simple
Loop Compensation Made SIMPLE
WEBENCH PCB Export for Synchronous SIMPLE SWITCHER Devices
Featured Product Create your power design now with TI’s WEBENCH® Designer
Power Management
PCN Assembly/Origin GFAB to FFAB 22/Mar/2017
Manufacturer Product Page LM2576HVT-5.0/LF02 Specifications

Categories Integrated Circuits (ICs)
PMIC - Voltage Regulators - DC DC Switching Regulators
Manufacturer Texas Instruments
Series SIMPLE SWITCHER®
Packaging ? Tube ?
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) -
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case TO-220-5 Formed Leads
Supplier Device Package TO-220-5
Base Part Number LM2576
Features
1• 3.3-V, 5-V, 12-V, 15-V, and Adjustable Output
Versions
• Adjustable Version Output Voltage Range,1.23 V
to 37 V (57 V for HV Version) 4% Maximum Over
Line and Load Conditions
• Specified 3-A Output Current
• Wide Input Voltage Range: 40 V Up to 60 V for
HV Version
• 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

Categories Integrated Circuits (ICs)
PMIC - Voltage Regulators - DC DC Switching Regulators
Manufacturer Texas Instruments
Series SIMPLE SWITCHER®
Packaging ? Tube ?
Part Status Not For New Designs
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) -
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case TO-220-5
Supplier Device Package TO-220-5
Base Part Number LM2576

Description
The LM2576 series of regulators are monolithic
integrated circuits that provide all the active functions
for a step-down (buck) switching regulator, capable of
driving 3-A load with excellent line and load
regulation. These devices are available in fixed output
voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable
output version.
Requiring a minimum number of external
components, these regulators are simple to use and
include fault protection and a fixed-frequency
oscillator.
The LM2576 series offers a high-efficiency
replacement for popular three-terminal linear
regulators. It substantially reduces the size of the
heat sink, and in some cases no heat sink is
required.
A standard series of inductors optimized for use with
the LM2576 are available from several different
manufacturers. This feature greatly simplifies the
design of switch-mode power supplies.
Other features include a 4% tolerance on output
voltage within specified input voltages and output
load conditions, and 10% on the oscillator
frequency. External shutdown is included, featuring
50-μA (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as
thermal shutdown for full protection under fault
conditions.

Categories Integrated Circuits (ICs)
PMIC - Voltage Regulators - DC DC Switching Regulators
Manufacturer Texas Instruments
Series SIMPLE SWITCHER®
Packaging Tube
Part Status Not For New Designs
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) -
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case TO-220-5 Formed Leads
Supplier Device Package TO-220-5
Base Part Number LM2576

Features
1• 3.3-V, 5-V, 12-V, 15-V, and Adjustable Output
Versions
• Adjustable Version Output Voltage Range,1.23 V
to 37 V (57 V for HV Version) 4% Maximum Over
Line and Load Conditions
• Specified 3-A Output Current
• Wide Input Voltage Range: 40 V Up to 60 V for
HV Version
• 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