LM2576T-ADJ

Output Power :
Input Voltage :
Operating Temperature Range :
Output Current : 3 A
Packaging : Tube
Mounting Style : Through Hole
Package / Case : TO-220
Output Voltage : 1.23 V to 37 V
Switching Frequency : 47 KHz to 58 KHz


Description

The LM2576T-ADJ is one member of the LM2576 series.The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A 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.

Features of the LM2576T-ADJ are:(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 3A 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.Requiring a minimum number of external components,these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.The LM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some cases no heat sink is required.

The absolute maximum ratings of the LM2576T-ADJ can be summarized as:(1)output voltage to ground (steady state):-1v; (2)power dissipation:internally limited; (3)storage temperature range:-65 to +150; (4)maximum junction temperature 150; (5)lead temperature(soldering, 10 seconds) 260.All switching regulators have two basic modes of operation:continuous and discontinuous. The difference between the two types relates to the inductor current, whether it is flowing continuously, or if it drops to zero for a period of time in the normal switching cycle. Each mode has distinctively different operating characteristics, which can affect the regulator performance and requirements.The LM2576T-ADJ (or any of the SIMPLE SWITCHER family) can be used for both continuous and discontinuous modes of operation.

Parameters:

Technical/Catalog Information	LM2576T-ADJ
Vendor	ON Semiconductor
Category	Integrated Circuits (ICs)
Type	Step-Down (Buck)
Number of Outputs	1
Voltage - Input	7 ~ 40 V
Voltage - Output	1.23 ~ 37 V
Current - Output	3A
Power - Output	-
Package / Case	TO-220-5 (Straight Leads)
Packaging	Tube
Internal Switch(s)	Yes
Synchronous	No
Rds (On)	-
Operating Temperature	-40°C ~ 125°C
Frequency - Switching	52kHz
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	LM2576T ADJ LM2576TADJ LM2576T ADJOS ND LM2576TADJOSND LM2576T-ADJOS