Product Summary

The LM2576T-ADJ is a simple switche 3A step-down voltage regulator. The LM2576T-ADJ regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation. The LM2576T-ADJ is available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. Requiring a minimum number of external components, the regulator LM2576T-ADJ is simple to use and include internal frequency compensation and a fixed-frequency oscillator.

Parametrics

LM2576T-ADJ 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℃ to +150℃; (6)Maximum Junction Temperature: 150℃; (7)Minimum ESD Rating(C = 100 pF, R = 1.5 kΩ): 2kV; (8)Lead Temperature(Soldering, 10 Seconds): 260℃.

Features

LM2576T-ADJ features: (1)Guaranteed 3A output current; (2)Wide input voltage range, 40V up to 60V for HV version; (3)Requires only 4 external components; (4)52 kHz fixed frequency internal oscillator; (5)TTL shutdowcapability, low power standby mode; (6)High efficiency; (7)Uses readily available standard inductors; (8)Thermal shutdowand current limit protection; (9)P+ Product Enhancement tested.

Diagrams

LM2576T-ADJ typical application

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM2576T-ADJ
LM2576T-ADJ

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
LM2576T-ADJ/LB02
LM2576T-ADJ/LB02

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-315: $1.12
315-540: $1.00
540-1035: $0.85
1035-2520: $0.80
LM2576T-ADJ/NOPB
LM2576T-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
LM2576T-ADJ/LF03
LM2576T-ADJ/LF03

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-1: $1.70
1-25: $1.36
25-100: $1.24
100-250: $1.12
LM2576T-ADJ/LF02
LM2576T-ADJ/LF02

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-315: $1.12
315-540: $1.00
540-1035: $0.85
1035-2520: $0.80
LM2576T-ADJ/LB03
LM2576T-ADJ/LB03

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-315: $1.12
315-540: $1.00
540-1035: $0.85
1035-2520: $0.80
LM2576T-ADJG
LM2576T-ADJG

ON Semiconductor

Switching Converters, Regulators & Controllers 3A 1.23-37V ADJ Buck PWM

Data Sheet

0-1: $1.11
1-25: $0.99
25-100: $0.79
100-500: $0.69