Texas Instruments LM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator, Part #LM2576SX-5.0 NOPB | Regulator | DEX

Texas Instruments LM2576xx Series SIMPLE SWITCHER 3-A Step-Down Voltage Regulator, Part #LM2576SX-5.0 NOPB | Regulator | DEX features: 3.3-V, 5-V, 12-V, 15-V, and adjustable output versions Adjustable version output voltage range,1.23 V to 37 V (57 V for HV version) 4% maximum over line and load conditions Specified 3-A output current Wide input voltage range: 40 V Up to 60 V for HV version Requires only four external components 52-kHz fixed-frequency internal oscillator TTL-shutdown capability, low-power standby mode High efficiency Uses readily available standard inductors

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 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 version.Requiring a minimum number of external components, these regulators are simple to use and include fault protection 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. A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers. 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-A (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions. The new product, LMR33630, offers reduced BOM cost, higher efficiency, and an 85% reduction in solution size among many other features. The LM76003 requires very few external components and has a pinout designed for simple, optimum PCB layout for EMI and thermal performance.

TEX:LM2576SX-5.0 NOPB

LM2576SX-5.0 NOPB