LM2576SX-ADJ / NOPB Simple Switcher® 3a Step Down Voltage Regulator
Signal Schottky Diode
FEATURES
►3.3V, 5V, 12V, 15V, and Adjustable Output Versions .
►Adjustable Version Output Voltage Range,1.23V to 37V (57V for HV
Version) ±4% Max Over Line and Load Conditions .
►Specified 3A Output Current .
►Wide Input Voltage Range, 40V Up to 60V 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.
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 3A load with excellent line
and load regulation. These devices are available in fixed output
voltages of 3.3V, 5V, 12V, 15V, 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.
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.
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