Lm2576T 12V 3A Ic Reg

The LM2576 series of regulato 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 veion. Requiring a minimum number of external components, these regulato are simple to use and include fault protection and a fixed-frequency oscillator. The LM2576 series offe a high-efficiency replacement for popular three-terminal linear regulato. It substantially reduces the size of the heat sink, and in some cases no heat sink is required. A standard series of inducto optimized for use with the LM2576 are available from several different manufacture. 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.

Specifications:



Output Voltage: 12v

Adjustable Veion Output Voltage Range,1.23 V to 37 V (57 V for HV Veion) ±4% Maximum Over Line and Load Conditions

Specified 3-A Output Current

Wide Input Voltage Range: 40 V Up to 60 V for HV Veion

Requires Only 4 External Components

52-kHz Fixed-Frequency Internal Oscillator

TTL-Shutdown Capability, Low-Power Standby Mode

High Efficiency

Uses Readily Available Standard Inducto

Thermal Shutdown and Current Limit Protection



Datasheet

Package Include:



1 x LM2576T IC









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