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The LM2575/6 series switching regulators are monolithic integrated circuits designed for use in "buck"or "buck/ boost"regulator applications requiring accurate output voltages over combined variations of line,load and temperature.This unique series greatly simplifies switching power supply design.The LM2575 has a maximum output current of 1A and the LM2576 is rated for 3A.
The LM2575/6 series miniconverters include a switching regulator and compensation network all within the same package.Just add a choke,catch diode and two capacitors to obtain an efficient DC-to-DC converter. The current limit and thermal shutdown features of the LM2575/6 series fully protect the device against overstress conditions.
The LM2575/6 series offers an alternative to popular 3 terminal linear regulators by providing higher efficiency with reduced heatsink size.In many applications a heat sink will not be required.
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Chinese manufacturing processes have undergone years of iteration, resulting in mature and reliable technologies. Many international corporations opt for production outsourcing in China. As an electronic components manufacturer in China, our products can fully replace those of major international brands in 99% of applications without the need for testing verification. Our products boast high consistency in quality, reasonable pricing, ample inventory, flexible supply, short lead times, and professional after-sales service.
Description
The LM2575/6 series switching regulators are monolithic integrated circuits designed for use in "buck"or "buck/ boost"regulator applications requiring accurate output voltages over combined variations of line,load and temperature.This unique series greatly simplifies switching power supply design.The LM2575 has a maximum output current of 1A and the LM2576 is rated for 3A.The LM2575/6 series miniconverters include a switching regulator and compensation network all within the same package.Just add a choke,catch diode and two capacitors to obtain an efficient DC-to-DC converter. The current limit and thermal shutdown features of the LM2575/6 series fully protect the device against overstress conditions.The LM2575/6 series offers an alternative to popular 3 terminal linear regulators by providing higher efficiency with reduced heatsink size.In many applications a heat sink will not be required.
Features
●Pin for pin replacement for National's LM2575/6 series
●DC-to-DC buck or buck/boost converter requiring only 4 support components
●Fixed or adjustable voltages
●Preset output voltages of 3.3V,5V and 12V
●Wide output voltage range,1.23V to 35V
●82%typical efficiency @5V out
●Wide input voltage range,4Vto 40V
●Inhibit/enable control pin
●Industrial temperature range
●T0-220 and TO-263 packages
Applications
●Micro controller power supplies
●Medical equipment
●Industrial power supplies
●Instrumentation power supplies
| File Name | Title | Description |
|---|---|---|
| LM2576S-ADJ.PDF | LM2576S-ADJ | - |
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The LM2596/LM2596HV is a PWM DC-DC buck regulator with a fixed frequency of 150 kHz.It features a 3A output current capability, high efficiency, low ripple, and excellent linearity in both line and load regulation. The chip uses PWM modulation, allowing the duty cycle to be adjusted linearly in the range of 0-100%. The LM2596/LM2596HV integrates a fixed-frequency oscillator and a frequency compensation module, making it very easy to use with minimal external components. Additionally, it includes several built-in protection features, such as enable with hysteresis, over-temperature protection, over-current protection, and latch-off over-current protection. In the event of secondary over-current protection,the chip automatically reduces the operating frequency from 150 kHz to 50 kHz.
LM2596SX/LM2596HV is a fixed frequency PWM DCDCvoltage stabilizing power converter with fixed frequency of 150KHz. With the 3A output current driving ability, it has characteristics such as high efficiency, low ripple wave, high linear adjustment rate and load regulation. With the PWM modulation mode, the chip can adjust the linear ranges of the duty ratio of 0-100%. LM2596SX/LM2596HV has a built-in fixed frequency oscillator and a frequency compensation module, with simple use, and only a small number of external components and parts are needed. In addition, the chip has built-in functions such as enabling, over-temperature protection, over-current protection and stimulation over current protection with the hysteresis function. In condition of secondary over-current protection, the built-in downconversion function can reduce the working frequency from 150KHz to 50KHz.
LM2596SX/LM2596HV is a fixed frequency PWM DCDCvoltage stabilizing power converter with fixed frequency of 150KHz. With the 3A output current driving ability, it has characteristics such as high efficiency, low ripple wave, high linear adjustment rate and load regulation. With the PWM modulation mode, the chip can adjust the linear ranges of the duty ratio of 0-100%. LM2596SX/LM2596HV has a built-in fixed frequency oscillator and a frequency compensation module, with simple use, and only a small number of external components and parts are needed. In addition, the chip has built-in functions such as enabling, over-temperature protection, over-current protection and stimulation over current protection with the hysteresis function. In condition of secondary over-current protection, the built-in downconversion function can reduce the working frequency from 150KHz to 50KHz.
LM2596/LM2596HV is a fixed frequency PWM DCDC voltage stabilizing power converter with fixed frequency of 150KHz. With the 3A output current driving ability, it has characteristics such as high efficiency, low ripple wave, high linear adjustment rate and load regulation.With the PWM modulation mode,the chip can adjust the linear ranges of the duty ratio of 0-100%. LM2596/LM2596HV has a built-in fixed frequency oscillator and a frequency compensation module, with simple use, and only a small number of external components and parts are needed. In addition, the chip has built-in functions such as enabling, over-temperature protection, over-current protection and stimulation over-current protection with the hysteresis function. In condition of secondary over-current protection, the built-in down-conversion function can reduce the working frequency from 150KHz to 50KHz.
LM2596/LM2596HV is a fixed frequency PWM DC-DC voltage stabilizing power converter with fixed frequency of 150KHz. With the 3A output current driving ability, it has characteristics such as high efficiency, low ripple wave, high linear adjustment rate and load regulation. With the PWM modulation mode, the chip can adjust the linear ranges of the duty ratio of 0-100%. LM2596/LM2596HV has a built-in fixed frequency oscillator and a frequency compensation module, with simple use, and only a small number of external components and parts are needed. In addition, the chip has built-in functions such as enabling, over-temperature protection, over-current protection and stimulation over-current protection with the hysteresis function. In condition of secondary over-cumrent protection, the built-in down-conversion function can reduce the working frequency from 150KHz to 50KHz.
LM2596/LM2596HV is a fixed frequency PWM DCDC voltage stabilizing power converter with fixed frequency of 150KHz. With the 3A output current driving ability, it has characteristics such as high efficiency, low ripple wave, high linear adjustment rate and load regulation. With the PWM modulation mode, the chip can adjust the linear ranges of the duty ratio of 0-100%. LM2596/LM2596HV has a built-in fixed frequency oscillator and a frequency compensation module, withsimple use, and only a small number of external components and parts are needed. In addition, the chip has built-in functions such as enabling, over-temperature protection, over-current protection and stimulation over-current protection with the hysteresis function. In condition of secondary over-current protection, the built-in down-conversion function can reduce the working frequency from 150KHz to 50KHz.
The LM2575/6 series switching regulators are monolithic integrated circuits designed for use in "buck”or"buck/boost”regulator applications requiring accurate output voltages over combined variations of line, load and temperature. This unique series greatly simplifies switching power supply design.The LM2575 has a maximum output current of 1A and the LM2576 is rated for 3A. The LM2575/6 series miniconverters include a switching regulator and compensation network all within the same package.Just add a choke, catch diode and two capacitors to obtain an efficient DC-to-Dc converter. The current limit and thermal shutdown features of the LM2575/6 series fully protect the device against overstress conditions. The LM2575/6 series offers an alternative to popular 3 terminal linear regulators by providing higher efficiency with reduced heatsink size. In many applications a heat sink will not be required.
The LM2575/6 series switching regulators are monolithic integrated circuits designed for use in "buck" or "buck/boost" regulator applications requiring accurate output voltages over combined variations of line, load and temperature. This unique series greatly simplifies switching power supply design.The LM2575 has a maximum output cumrent of 1A and the LM2576 is rated for 3A. The LM2575/6 series miniconverters include a switching regulator and compensation network all within the same package. Just add a choke, catch diode and two capacitors to obtain an efficient DC-to-DC converter. The current limit and thermal shutdown features of the LM2575/6 series fully protect the device against overstress conditions. The LM2575/6 series offers an alternative to popular 3 terminal linear regulators by providing higher efficiency with reduced heatsink size.In many applications a heat sink will not be required.
