LM2575HVT-15 P+
3.3V, 5V, 12V, 15V, and Adjustable Output
integrated circuits that provide all the active functions Versions for a step-down (buck) switching regulator, capable of
? Adjustable Version Output Voltage Range, driving a 1A load with excellent line and load
? 1.23V to 37V (57V for HV Version) ?4% regulation. These devices are available in fixed output
Max Over voltages of 3.3V, 5V, 12V, 15V, and an adjustable
output version. ? Line and Load Conditions
? Specified 1A Output Current Requiring a minimum number of external
components, these regulators are simple to use and ? Wide Input Voltage Range, 40V up to 60V for include internal frequency compensation and a fixed- HV Version frequency oscillator.
? Requires Only 4 External Components
The LM2575 series offers a high-efficiency
? 52 kHz Fixed Frequency Internal Oscillator replacement for popular three-terminal linear
? TTL Shutdown Capability, Low Power Standby regulators. It substantially reduces the size of the
Mode heat sink, and in many cases no heat sink is
required. ? High Efficiency
? Uses Readily Available Standard Inductors A standard series of inductors optimized for use with
the LM2575 are available from several different ? Thermal Shutdown and Current Limit manufacturers. This feature greatly simplifies the Protection design of switch-mode power supplies.
? P
Product Enhancement Tested
LM2575HVT-5.0 P+
The LM2575 series offers a high-efficiency
? 52 kHz Fixed Frequency Internal Oscillator replacement for popular three-terminal linear
? TTL Shutdown Capability, Low Power Standby regulators. It substantially reduces the size of the
Mode heat sink, and in many cases no heat sink is
required. ? High Efficiency
? Uses Readily Available Standard Inductors A standard series of inductors optimized for use with
the LM2575 are available from several different ? Thermal Shutdown and Current Limit manufacturers. This feature greatly simplifies the Protection design of switch-mode power supplies.
? P
Product Enhancement Tested
Other features include a specified ?4% tolerance on
output voltage within specified input voltages and APPLICATIONS output load conditions, and ?10% on the oscillator
? Simple High-Efficiency Step-Down (Buck) frequency. External shutdown is included, featuring
Regulator 50 ?A (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as ? Efficient Pre-Regulator for Linear Regulators
thermal shutdown for full protection under fault
? On-Card Switching Regulators conditions.
LM2575T
The LM2575 series offers a high-efficiency
? 52 kHz Fixed Frequency Internal Oscillator replacement for popular three-terminal linear
? TTL Shutdown Capability, Low Power Standby regulators. It substantially reduces the size of the
Mode heat sink, and in many cases no heat sink is
required. ? High Efficiency
? Uses Readily Available Standard Inductors A standard series of inductors optimized for use with
the LM2575 are available from several different ? Thermal Shutdown and Current Limit manufacturers. This feature greatly simplifies the Protection design of switch-mode power supplies.
? P
Product Enhancement Tested
Other features include a specified ?4% tolerance on
output voltage within specified input voltages and APPLICATIONS output load conditions, and ?10% on the oscillator
? Simple High-Efficiency Step-Down (Buck) frequency. External shutdown is included, featuring
Regulator 50 ?A (typical) standby current. The output switch
includes cycle-by-cycle current limiting, as well as ? Efficient Pre-Regulator for Linear Regulators
thermal shutdown for full protection under fault
? On-Card Switching Regulators conditions.
LM2575T-5.0
The LM2575 series of regulators are monolithic ? 3.3V, 5V, 12V, 15V, and Adjustable Output
integrated circuits that provide all the active functions Versions for a step-down (buck) switching regulator, capable of
? Adjustable Version Output Voltage Range, driving a 1A load with excellent line and load
? 1.23V to 37V (57V for HV Version) ?4% regulation. These devices are available in fixed output
Max Over voltages of 3.3V, 5V, 12V, 15V, and an adjustable
output version.
LM2577T-ADJ P+
Requires Few External Components
circuits that provide all of the power and control
? NPN Output Switches 3.0A, can Stand off 65V functions for step-up (boost), flyback, and forward
? Wide Input Voltage Range: 3.5V to 40V converter switching regulators. The device is
available in three different output voltage versions: ? Current-mode Operation for Improved
Transient Response, Line Regulation, 12V, 15V, and adjustable. and
Current Limit Requiring a minimum number of external
? 52 kHz Internal Oscillator components, these regulators are cost effective, and
simple to use. Listed in this data sheet are a family of ? Soft-start Function Reduces In-rush Current standard inductors and flyback transformers designed During Start-up to work with these switching regulators.
? Output Switch Protected by Current Limit,
Included on the chip is a 3.0A NPN switch and its Under-voltage Lockout, and Thermal associated protection circuitry, consisting of current Shutdown
LM2586S-ADJ
The LM2586 series of regulators are monolithic
integrated circuits specifically designed for flyback,
step-up (boost), and forward converter applications.
The device is available in 4 different output voltage
versions: 3.3 V, 5 V, 12 V, and adjustable.
Requiring a minimum number of external
components, these regulators are cost effective, and
simple to use. Included in the datasheet are typical
circuits of boost and flyback regulators. Also listed
are selector guides for diodes and capacitors and a
family of standard inductors and flyback transformers
designed to work with these switching regulator
LM2588SADJ
The LM2588 series of regulators are monolithic
integrated circuits specifically designed for flyback,
step-up (boost), and forward converter applications.
The device is available in 4 different output voltage
versions: 3.3 V, 5 V, 12 V, and adjustable.
Requiring a minimum number of external
components, these regulators are cost effective, and
simple to use. Included in this data sheet are typical
circuits of boost and flyback regulators. Also listed
are selector guides for diodes and capacitors and a
family of standard inductors and flyback transformers
designed to work with these switching regulators.
LM258D
These circuits consist of two independent, highgain, internally frequency-compensated op amps,
specifically designed to operate from a single
power supply over a wide range of voltages. The
low-power supply drain is independent of the
magnitude of the power supply voltage.
Application areas include transducer amplifiers,
DC gain blocks and all the conventional op amp
circuits, which can now be more easily
implemented in single power supply systems. For
example, these circuits can be directly supplied
with the standard 5 V, which is used in logic
systems and will easily provide the required
interface electronics with no additional power
supply.
LM2596S 3.3 Volts fixed Voltage Converter (TO-263)
The LM2596S 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 Ampere load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.
Requiring a minimum number of externalcomponents, these regulators are simple to use andinclude internal frequency compensation, and a fixed frequency oscillator.
LM2596S 5 Volts fixed Voltage Converter (TO-263)
The LM2596 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 Ampere load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed frequency oscillator.
LM2596S Adjustable Voltage Converter (TO-263)
The LM2596S 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 Ampere load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed frequency oscillator.
