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Texas Instruments LM2576xx Series SIMPLE SWITCHER® 3-A Step-Down Voltage Regulator, Part #LM2576T-5.0 NOPB | Regulator | DEX

Texas Instruments LM2576xx Series SIMPLE SWITCHER® 3-A Step-Down Voltage Regulator, Part #LM2576T-5.0 NOPB | Regulator | DEX

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Texas Instruments LM2576xx Series SIMPLE SWITCHER® 3-A Step-Down Voltage Regulator, Part #LM2576T-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-μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

 

TEX:LM2576T-5.0 NOPB 

LM2576T-5.0 NOPB 

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