Product Summary

The LM2575M-5.0 is a regulator. The LM2575M-5.0 is monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. The LM2575M-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, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2575M-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. A standard series of inductors optimized for use with the LM2575M-5.0 is available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Parametrics

LM2575M-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)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

LM2575M-5.0 features: (1)3.3V, 5V, 12V, 15V, and adjustable output versions; (2)Adjustable version output 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 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

LM2575M-5.0 pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM2575M-5.0
LM2575M-5.0

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-360: $1.00
360-510: $0.88
510-1020: $0.73
1020-2520: $0.68
LM2575M-5.0/NOPB
LM2575M-5.0/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-1: $1.56
1-25: $1.25
25-100: $1.13
100-250: $1.00