Voltage Regulator LM2576HVR-ADJ

60V, 3.0A, 52kHz, STEP-DOWN SWITCHING REGULATOR

FEATURES:
– Adjustable Version Output Voltage Range, 1.23V to 52V ±4%
– Max over Line and Load conditions
– Guaranteed Output Current of 3A
– Fixed Output Voltages : 3.3V, 5.0V, 12V and 15V
– Wide Input Voltage Range 60V
– 52 kHz Fixed Frequency Oscillator
– TTL Shutdown Capability, Low Power Standby Mode
– Requires only 4 External Components
– High Efficiency
– Use Readily Available Standard Inductors
– Available in TO-220, TO-263 and SOP-8PP Packages
– Thermal Shutdown and Current Limit Protection
– Moisture Sensitivity Level 3 for SMD Packages

DESCRIPTION:

• The LM2576HV 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, 5.0V, 12V, 15V and adjustable output versions.
  Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency
  oscillator.
• The LM2576HV 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 LM2576HV are available from several different manufacturers. This feature greatly simplifies the
  design of switch-mode power supplies. Other features include a guaranteed ±4% tolerance on output voltage within specified input voltages and output load
  conditions, and ±10% on the oscillator frequency.
• External shutdown is included, featuring 50µA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal
  shutdown for full protection under fault conditions.