Product Summary

The LM2576T-5.0 is a 3Amp step-down voltage regulator. It 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 device features a 5V out-put capable of driving a 3A load with excellent line and load regulation. The applications of the LM2576T-5.0 include: (1)Simple high-efficiency step-down (buck) regulator; (2)Efficient pre-regulator for linear regulators; (3)On-card switching regulators; (4)Positive to Negative converter (Inverting, Buck-Boost); (5)Isolated Flyback Converter using minimum number of external components; (6)Negative Boost Converter.

Parametrics

LM2576T-5.0 absolute maximum ratings: (1)Maximum Supply Voltage: 45V; (2)ON/OFF Pin Input Voltage: -0.3V ≤ V ≤ +40V; (3)Output Voltage to Ground (Steady State): -1V; (4)Storage Temperature Range: -65℃ to + 150℃; (5)Minimum ESD Rating (C = 100 pF, R = 1.5 kΩ): 2KV; (6)Lead Temperature (Soldering, 10 Seconds): 260℃; (7)Maximum Junction Temperature: 150℃.

Features

LM2576T-5.0 features: (1)5V output, ±3% max over line and load conditions; (2)Guaranteed 3A output current; (3)Wide input voltage range, 7V to 40V; (4)Requires only 4 external components; (5)52 kHz fixed frequency internal oscillator; (6)Low power standby mode, IQ typically <200 jxA; (7)80% Efficiency; (8)Uses readily available standard inductors; (9)Thermal shutdown and current limit protection; (10)100% electrical thermal limit bum-in.

Diagrams

LM2576T-5.0 typical application

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM2576T-5.0
LM2576T-5.0

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-1: $1.82
1-25: $1.48
25-100: $1.33
100-250: $1.21
LM2576T-5.0/LB03
LM2576T-5.0/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-5.0/NOPB
LM2576T-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
LM2576T-5.0/LF03
LM2576T-5.0/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-5.0/LF02
LM2576T-5.0/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