Product Summary

The LM2575T-5.0 is a SIMPLE SWITCHER 1A Step-Down Voltage Regulator. It is the monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. The LM2575T-5.0 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 LM2575T-5.0 is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2575T-5.0 offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

Parametrics

LM2575T-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)Storage Temperature Range: -65℃ to +150℃; (5)Maximum Junction Temperature: 150℃; (6)Minimum ESD Rating (C = 100 pF, R = 1.5 kΩ): 2kV; (7)Lead Temperature (Soldering, 10 sec.): 260℃; (8)Operating Rating Temperature Range: -40℃ ≤ TJ ≤ +125℃; (9)Supply Voltage: 40V.

Features

LM2575T-5.0 features: (1)3.3V, 5V, 12V, 15V, and adjustable output version; (2)Adjustable version output voltage range, 1.23V to 37V (57V for HV version) ±4% max over line and load condition; (3)Guaranteed 1A 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

LM2575T-5.0 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM2575T-5.0
LM2575T-5.0
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1: $1.81
1-25: $1.45
25-100: $1.31
100-250: $1.16
LM2575T-5.0/LB02
LM2575T-5.0/LB02
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-405: $1.16
405-540: $1.01
540-1035: $0.84
1035-2520: $0.78
LM2575T-5.0/LB03
LM2575T-5.0/LB03
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1: $1.81
1-25: $1.45
25-100: $1.31
100-250: $1.16
LM2575T-5.0/LF03
LM2575T-5.0/LF03
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1: $1.81
1-25: $1.45
25-100: $1.31
100-250: $1.16
LM2575T-5.0/LF02
LM2575T-5.0/LF02
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-405: $1.16
405-540: $1.01
540-1035: $0.84
1035-2520: $0.78
LM2575T-5.0/LF04
LM2575T-5.0/LF04
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-405: $1.16
405-540: $1.01
540-1035: $0.84
1035-2520: $0.78
LM2575T-5.0/NOPB
LM2575T-5.0/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers 1A STEP-DOWN VLTG REG
Data Sheet
0-1: $1.47
1-25: $1.18
25-100: $1.06
100-250: $0.95
LM2575T-5.0G
LM2575T-5.0G
Other

Data Sheet
Negotiable