| (NSID) | Top View | Type | Pins | MSL Rating | Peak Reflow | RoHS Status |
CAD Symbols | Models | Package Marking Format |
|---|---|---|---|---|---|---|---|---|---|
| LM2575M-5.0/NOPB LM2575M-5.0 |
 |
SOIC WIDE | 24 | 3 3 |
260 260 |
Detail | Download | N/A |
NSUZXYTTE# LM2575M -5.0 P+ |
| LM2575M-ADJ/NOPB LM2575M-ADJ |
|
SOIC WIDE | 24 | 3 3 |
260 260 |
Detail | Download | N/A |
NSUZXYTTE# LM2575M -ADJ P+ |
| LM2575MX-5.0/NOPB LM2575MX-5.0 |
|
SOIC WIDE | 24 | 3 3 |
260 260 |
Detail | Download | N/A |
NSUZXYTTE# LM2575M -5.0 P+ |
| LM2575MX-ADJ/NOPB LM2575MX-ADJ |
|
SOIC WIDE | 24 | 3 3 |
260 260 |
Detail | Download | N/A |
NSUZXYTTE# LM2575M -ADJ P+ |
| LM2575N-5.0/NOPB LM2575N-5.0 |
 |
MDIP | 16 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYYTTE# LM2575N -5.0 P+ |
| LM2575N-ADJ/NOPB LM2575N-ADJ |
|
MDIP | 16 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYYTTE# LM2575N -ADJ P+ |
| LM2575S-12/NOPB LM2575S-12 |
 |
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -12 P+ |
| LM2575S-15/NOPB LM2575S-15 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -15 P+ |
| LM2575S-3.3/NOPB LM2575S-3.3 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -3.3 P+ |
| LM2575S-5.0/NOPB LM2575S-5.0 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -5.0 P+ |
| LM2575S-ADJ/NOPB LM2575S-ADJ |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -ADJ P+ |
| LM2575SX-12/NOPB LM2575SX-12 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -12 P+ |
| LM2575SX-15/NOPB LM2575SX-15 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -15 P+ |
| LM2575SX-3.3/NOPB LM2575SX-3.3 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -3.3 P+ |
| LM2575SX-5.0/NOPB LM2575SX-5.0 |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -5.0 P+ |
| LM2575SX-ADJ/NOPB LM2575SX-ADJ |
|
TO-263 | 5 | 3 3 |
245 235 |
Detail | Download | N/A |
NSUZXYTTE# LM2575S -ADJ P+ |
| LM2575T-12/NOPB LM2575T-12 |
 |
TO-220 | 5 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LM2575T -12 P+ |
| LM2575T-15/NOPB LM2575T-15 |
|
TO-220 | 5 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LM2575T -15 P+ |
| LM2575T-3.3/NOPB LM2575T-3.3 |
|
TO-220 | 5 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LM2575T -3.3 P+ |
| LM2575T-5.0/NOPB LM2575T-5.0 |
|
TO-220 | 5 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LM2575T -5.0 P+ |
| LM2575T-ADJ/NOPB LM2575T-ADJ |
|
TO-220 | 5 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LM2575T -ADJ P+ |
PDF
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 ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
| • | Simple high-efficiency step-down (buck) regulator |
| • | Efficient pre-regulator for linear regulators |
| • | On-card switching regulators |
| • | Positive to negative converter (Buck-Boost) |
| • | 3.3V, 5V, 12V, 15V, and adjustable output versions |
| • | Adjustable version output voltage range, 1.23V to 37V (57V for HV version) ±4% max over line and load conditions |
| • | Guaranteed 1A output current |
| • | Wide input voltage range, 40V up to 60V for HV version |
| • | Requires only 4 external components |
| • | 52 kHz fixed frequency internal oscillator |
| • | TTL shutdown capability, low power standby mode |
| • | High efficiency |
| • | Uses readily available standard inductors |
| • | Thermal shutdown and current limit protection |
| • | P |
Diagrams
Typical Application
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Connection Diagram
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Typical Performance  |
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