Product Summary

The LM2576S-5.0 is a 3A step-down voltage regulator that provides 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 avail-able 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 LM2576S-5.0 series offers a high-efficiency replacement for popular three-terminal linear regulators.

Parametrics

LM2576S-5.0 absolute maximum ratings: (1)Maximum Supply Voltage: 45V; (2)ON /OFF Pin Input Voltage : -0.3V≤V≤+ Vin; (3)Output Voltage to Ground(Steady State) :-1V; (4)Power Dissipation : Internally Limited; (5)Storage Temperature Range :-65°C to +150°C; (6)Maximum Junction Temperature 150°C; (7)Minimum ESD Rating(C = 100 pF, R = 1.5 kΩ):2kV ; (8)Lead Temperature(Soldering, 10 Seconds) :260°C.

Features

LM2576S-5.0 features: (1)3.3V, 5V, 12V, 15V, and adjustable output versions; (2)Adjustable version output voltage range,1.23V to 37V (57V for HV version) ± 4% max over line and load conditions; (3)Guaranteed 3A output current; (4)Wide input voltage range, 40V up to 60V for HV version; (5)Requires only 4 external components; (6)52 kHz fixed frequency internal oscillator; (7)TTL shutdown capability, low power standby mode; (8)High efficiency; (9)Uses readily available standard inductors; (10)Thermal shutdown and current limit protection; (11)P+ Product Enhancement tested.

Diagrams

LM2576S-5.0 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM2576S-5.0
LM2576S-5.0

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-315: $1.21
315-540: $1.06
540-1035: $0.85
1035-2520: $0.80
LM2576S-5.0/NOPB
LM2576S-5.0/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers 3A STEP-DOWN VLTG REG

Data Sheet

0-1: $1.70
1-25: $1.36
25-100: $1.24
100-250: $1.12