Product Summary

The LM2576T-5.0 is a Step-Down Voltage Regulator. The LM2576T-5.0 provides all the active funtions for a step-down switching regulator. The LM2576T-5.0 features an output voltage which is adjustable from 1.23V to 37V and is capable of driving a 3A load with excellent line and load regulation. The LM2576T-5.0 offers a high efficiency replacement for popular three-terminal adjustable linear regulators. The LM2576T-5.0 substantially reduces the size of the heat sink and in many cases no heat sink is required. Applications include simple high-efficiency step-down regulator, efficient pre-regulator for linear regulators, on-card switching regulators, positive to negative convert, isolated flyback converter using minimum number of external components and negetive boost converter.

Parametrics

LM2576T-5.0 absolute maximum ratings: (1)maximum supply voltage: 45V; (2) on/off pin input voltage:- 0.3V~40V; (3)output voltage to ground: -1V; (4) power dissipation: internally limited; (5)storage temperature range: 65℃~150℃; (6)lead temperature: 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 4 external components; (5)52kHz fixed frequency internal oscillator; (6)low power standby mode; (7) 80% efficency; (8) uses readily available standard inductors; (9)thermal shutdown and current limit protection; (10)100% electrical thermal limit burn-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