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LM2575HV Product Folder

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Generic P/N 2575HV

General
Description

Package
& Models

Samples
& Pricing

Reliability
Metrics

Application
Notes

WEBENCH Live Simulation!

LM2575HV Webench™ Custom Design/Analyze/Build It
4.8 <=	V in Lower V	<=	V in Upper V	<= 60.0
V out	1.2 <=		V	<= 57.0
I out			A	<= 1.00
Ambient Temperature			°C	<= 100
What is Webench?

Parametric Table

Temperature Min (deg C)	-40
Temperature Max (deg C)	125
Multiple Output Capability	No
On/Off Pin	Yes
Error Flag	No
InputMin Voltage (Volt)	4
InputMax Voltage (Volt)	60
Output Current (mA)	1000
Output Voltage (Volt)	12, 15, 5, 3.30
Adjustable Output	No, Yes
Output Range	Undefined, 1.23V-57V
Switching Frequency (Hz)	52000
Adj Switch Frequency	No
Sync Pin	No
Efficiency (%)	88, 77, 75
Flyback	No
Inverting	Yes
Step-Up	No
Step-Down	Yes
RegType	Switching Regulator

-

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM1575 LM2575 LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator	643 Kbytes	20-Nov-01	View Online	Download	Receive via Email
LM1575 LM2575 LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator (JAPANESE)	820 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM2575HVM-12

24

Full production

N/A

N/A

1K+

$2.42

rail
of
30

NSUZXYTT
LM2575HVM
-12 P+

6-8 weeks

20000

LM2575HVM-15

24

Full production

N/A

N/A

1K+

$2.42

rail
of
30

NSUZXYTT
LM2575HVM
-15 P+

6-8 weeks

20000

LM2575HVM-5.0

24

Full production

N/A

N/A

1K+

$2.42

rail
of
30

NSUZXYTT
LM2575HVM
-5.0 P+

8-10 weeks

20000

LM2575HVM-ADJ

24

Full production

N/A

N/A

1K+

$2.42

rail
of
30

NSUZXYTT
LM2575HVM
-ADJ P+

8-10 weeks

20000

LM2575HVMX-12

24

Full production

N/A

N/A

1K+

$2.42

reel
of
1000

NSUZXYTT
LM2575HVM
-12 P+

6-8 weeks

20000

LM2575HVMX-15

24

Full production

N/A

N/A

1K+

$2.42

reel
of
1000

NSUZXYTT
LM2575HVM
-15 P+

6-8 weeks

20000

LM2575HVMX-5.0

24

Full production

N/A

N/A

1K+

$2.42

reel
of
1000

NSUZXYTT
LM2575HVM
-5.0 P+

8-10 weeks

20000

LM2575HVMX-ADJ

24

Full production

N/A

N/A

1K+

$2.42

reel
of
1000

NSUZXYTT
LM2575HVM
-ADJ P+

8-10 weeks

20000

LM2575HVN-12

16

Full production

N/A

N/A

1K+

$2.42

rail
of
20

NSUZXYYTT
LM2575HVN
-12 P+

6-8 weeks

20000

LM2575HVN-15

16

Full production

N/A

N/A

1K+

$2.42

rail
of
20

NSUZXYYTT
LM2575HVN
-15 P+

6-8 weeks

20000

LM2575HVN-5.0

16

Full production

N/A

N/A

1K+

$2.42

rail
of
20

NSUZXYYTT
LM2575HVN
-5.0 P+

8-10 weeks

20000

LM2575HVN-ADJ

16

Full production

N/A

N/A

1K+

$2.42

rail
of
20

NSUZXYYTT
LM2575HVN
-ADJ P+

8-10 weeks

20000

LM2575HVT-12

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVT
-12 P+

7-9 weeks

20000

LM2575HVT-15

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVT
-15 P+

8-10 weeks

50000

LM2575HVT-3.3

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVT
-3.3 P+

6-8 weeks

20000

LM2575HVT-5.0

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVT
-5.0 P+

8-10 weeks

20000

LM2575HVT-ADJ

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVT
-ADJ P+

8-10 weeks

50000

LM2575HVS-12

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVS
-12 P+

13-15 weeks

20000

LM2575HVS-15

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVS
-15 P+

13-15 weeks

50000

LM2575HVS-3.3

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVS
-3.3 P+

13-15 weeks

20000

LM2575HVS-5.0

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVS
-5.0 P+

13-15 weeks

20000

LM2575HVS-ADJ

5

Full production

N/A

N/A

1K+

$2.42

rail
of
45

NSUZXYTT
LM2575HVS
-ADJ P+

13-15 weeks

50000

LM2575HVSX-12

5

Full production

N/A

N/A

1K+

$2.42

reel
of
500

NSUZXYTT
LM2575HVS
-12 P+

13-15 weeks

20000

LM2575HVSX-15

5

Full production

N/A

N/A

1K+

$2.42

reel
of
500

NSUZXYTT
LM2575HVS
-15 P+

13-15 weeks

50000

LM2575HVSX-3.3

5

Full production

N/A

N/A

1K+

$2.42

reel
of
500

NSUZXYTT
LM2575HVS
-3.3 P+

13-15 weeks

20000

LM2575HVSX-5.0

5

Full production

N/A

N/A

1K+

$2.42

reel
of
500

NSUZXYTT
LM2575HVS
-5.0 P+

13-15 weeks

20000

LM2575HVSX-ADJ

5

Full production

N/A

N/A

1K+

$2.42

reel
of
500

NSUZXYTT
LM2575HVS
-ADJ P+

13-15 weeks

50000

LM2575HV3.3 MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM2575HVADJ MDC

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM2575HV3.3 MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LM2575HVADJ MWC

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

General 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.

Features

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⁺ Product Enhancement tested

Applications

Simple high-efficiency step-down (buck) regulator
Efficient pre-regualtor for linear regulators
On-card switching regulators
Positive to negative converter (Buck-Boost)

Reliability Metrics

Part Number	Process	Early Failure Rate - Rejects	Sample Size (EFR)	PPM *	Rel. Rejects	Device Hours	Long Term Failure Rates (FITS)	MTTF
LM2575HV3.3 MDC	SLM	0	35000	0	0	1500000	3	424108012
LM2575HV3.3 MWC	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVADJ MDC	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVADJ MWC	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVM-12	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVM-15	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVM-5.0	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVM-ADJ	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVMX-12	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVMX-15	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVMX-5.0	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVMX-ADJ	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVN-12	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVN-15	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVN-5.0	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVN-ADJ	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVS-12	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVS-15	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVS-3.3	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVS-5.0	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVS-ADJ	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVSX-12	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVSX-15	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVSX-3.3	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVSX-5.0	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVSX-ADJ	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVT-12	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVT-15	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVT-3.3	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVT-5.0	SLM	0	35000	0	0	1500000	3	424108012
LM2575HVT-ADJ	SLM	0	35000	0	0	1500000	3	424108012

For more information on Reliablitity Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
AN-1061: Application Note 1061 Power Conversion in Line-Powered Equipment	188 Kbytes	1-Oct-02	View Online	Download	Receive via Email
AN-1149: Application Note 1149 Layout Guidelines for Switching Power Supplies	113 Kbytes	26-Sep-02	View Online	Download	Receive via Email
AN-1229: Application Note 1229 SIMPLE SWITCHER PCB Layout Guidelines	229 Kbytes	1-Oct-02	View Online	Download	Receive via Email
AN-1246: Application Note 1246 Stresses in Wide Input DC-DC Converters	272 Kbytes	26-Sep-02	View Online	Download	Receive via Email
AN-556: Application Note 556 Introduction to Power Supplies	159 Kbytes	25-Sep-02	View Online	Download	Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 15-Jan-2004]