Product Summary

The LM2575S-5.0 regulator is a 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. These devices are 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 is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2575S-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

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 sec.): 260℃.

Features

Features: (1)3.3V, 5V, 12V, 15V, and adjustable output versions; (2)Adjustable versiooutput voltage range, 1.23V to 37V (57V for HV version) ±4% max over line and load conditions; (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 shutdowcapability, low power standby mode; (8)High efficiency; (9)Uses readily available standard inductors; (10)Thermal shutdowand current limit protection; (11)P+ Product Enhancement tested.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM2575S-5.0
LM2575S-5.0

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-360: $1.18
360-540: $1.05
540-1035: $0.89
1035-2520: $0.84
LM2575S-5.0/NOPB
LM2575S-5.0/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers 1A STEP-DOWN VLTG REG

Data Sheet

0-1: $1.62
1-25: $1.30
25-100: $1.17
100-250: $1.04