LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM2575HVMX-5.0/NOPB LM2575HVMX-5.0		SOIC WIDE	24	3 3	260 260	Detail	N/A	N/A	NSUZXYTTE# LM2575HVM -5.0 P+
LM2575HVN-5.0/NOPB LM2575HVN-5.0		MDIP	16	1 1	NA NA	Detail	N/A	N/A	NSUZXYYTTE# LM2575HVN -5.0 P+
LM2575HVN-ADJ/NOPB LM2575HVN-ADJ		MDIP	16	1 1	NA NA	Detail	N/A	N/A	NSUZXYYTTE# LM2575HVN -ADJ P+
LM2575HVS-12/NOPB LM2575HVS-12		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -12 P+
LM2575HVS-15/NOPB LM2575HVS-15		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -15 P+
LM2575HVS-3.3/NOPB LM2575HVS-3.3		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -3.3 P+
LM2575HVS-5.0/NOPB LM2575HVS-5.0		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -5.0 P+
LM2575HVS-ADJ/NOPB LM2575HVS-ADJ		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -ADJ P+
LM2575HVSX-15/NOPB LM2575HVSX-15		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -15 P+
LM2575HVSX-3.3/NOPB LM2575HVSX-3.3		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -3.3 P+
LM2575HVSX-5.0/NOPB LM2575HVSX-5.0		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -5.0 P+
LM2575HVSX-ADJ/NOPB LM2575HVSX-ADJ		TO-263	5	3 3	245 235	Detail	N/A	N/A	NSUZXYTTE# LM2575HVS -ADJ P+
LM2575HVT-12/NOPB LM2575HVT-12		TO-220	5	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM2575HVT -12 P+
LM2575HVT-15/NOPB LM2575HVT-15		TO-220	5	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM2575HVT -15 P+
LM2575HVT-3.3/NOPB LM2575HVT-3.3		TO-220	5	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM2575HVT -3.3 P+
LM2575HVT-5.0/NOPB LM2575HVT-5.0		TO-220	5	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM2575HVT -5.0 P+
LM2575HVT-ADJ/NOPB LM2575HVT-ADJ		TO-220	5	1 1	NA NA	Detail	N/A	N/A	NSUZXYTTE# LM2575HVT -ADJ P+

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Description

The LM2575 series of regulators are 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. 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, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series 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 LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a guaranteed ¡À4% tolerance on output voltage within specified input voltages and output load conditions, and ¡À10% on the oscillator frequency. External shutdown is included, featuring 50 ¦ÌA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

Applications

Diagrams

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance *click for larger image