Product Summary

The LM2576S-ADJ is a 3A step-down voltage regulator. It is monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A loadwith 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.; (2)The LM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators.

Parametrics

LM2576S-ADJ absolute maximum ratings: (1)LM2576 45V; (2)LM2576HV 63V; (3)ON /OFF Pin Input Voltage -0.3V ≤ V ≤ +VIN; (4)Output Voltage to Ground(Steady State) 1V; (5)Power Dissipation Internally Limited; (6)Storage Temperature Range -65°C to +150°C; (7)Maximum Junction Temperature 150°C.

Features

LM2576S-ADJ 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-ADJ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM2576S-ADJ
LM2576S-ADJ
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-45: $1.48
45-135: $1.33
135-270: $1.21
270-540: $1.06
LM2576S-ADJ/NOPB
LM2576S-ADJ/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