RoHS Compliance Information	Size in Kbytes	Date
LM22675 1A SIMPLE SWITCHER®, Step-Down Voltage Regulator with Precision Enable	530 Kbytes	24-Nov-08	Download
LM22675 1A SIMPLE SWITCHER®, Step-Down Voltage Regulator with Precision Enable (Japanese)	893 Kbytes

Part Number

Package

Factory Lead Time

Models

Samples & Electronic Orders

Budgetary Pricing

Std Pack Size

Package Marking Format

Type

Pins

Spec.

MSL Rating

Peak Reflow

RoHS Report

CAD Symbols

Weeks

Qty

Qty

$US each

LM22672EVAL

Evaluation Board for LM22672 & LM22675, 1A SIMPLE SWITCHER regulators with Adj Vout, Adj Freq or Freq Synch, Precision Enable & Soft start

Full production

N/A

1+

$24.00

1

-

8 weeks

N/A

LM22675MR-5.0

PSOP

8

NOPB

3

260

RoHS

N/A

Full production

N/A

1K+

$1.68

rail of 95

NSXYTT L22675 5.0

8 weeks

N/A

LM22675MR-ADJ

PSOP

8

NOPB

3

260

RoHS

N/A

Full production

N/A

1K+

$1.68

rail of 95

NSXYTT L22675 ADJ

8 weeks

N/A

LM22675MRE-5.0

PSOP

8

NOPB

3

260

RoHS

N/A

Full production

N/A

1K+

$1.68

reel of 250

NSXYTT L22675 5.0

8 weeks

N/A

LM22675MRE-ADJ

PSOP

8

NOPB

3

260

RoHS

N/A

Full production

N/A

1K+

$1.68

reel of 250

NSXYTT L22675 ADJ

8 weeks

N/A

LM22675MRX-5.0

PSOP

8

NOPB

3

260

RoHS

N/A

Full production

N/A

1K+

$1.68

reel of 2500

NSXYTT L22675 5.0

12 weeks

N/A

LM22675MRX-ADJ

PSOP

8

NOPB

3

260

RoHS

N/A

Full production

N/A

1K+

$1.68

reel of 2500

NSXYTT L22675 ADJ

12 weeks

N/A

General Description

The LM22675 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 1A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance N-channel MOSFET. The series consists of a fixed 5V output and an adjustable version.

The SIMPLE SWITCHER ® concept provides for an easy to use complete design using a minimum number of external components and National’s WEBENCH ® design tool. National’s WEBENCH ® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in. The switching clock frequency is provided by an internal fixed frequency oscillator which operates at 500 kHz. The LM22675 series also has built in thermal shutdown, current limiting and an enable control input that can power down the regulator to a low 25 µA quiescent current standby condition.

Reliability Metrics

Design Tools

Title	Size in Kbytes	Date
"Downloadable LM2267x, LM22680 Quick Start Simple Switcher Component Calculator"	1413 Kbytes	12-Jan-2009	View

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

Application Notes

Title	Size in Kbytes	Date
AN-1930: Application Note 1930 SIMPLE SWITCHER® Regulators Take Over Automotive Applications	85 Kbytes	7-Jan-09	Download
AN-1889: Application Note 1889 How to Measure the Loop Transfer Function of Power Supplies	612 Kbytes	14-Oct-08	Download

More Application Notes

Title	Size in Kbytes	Date
AN-1888: Application Note 1888 LM22670 Evaluation Board Inverting Topology and Application Notes	1020 Kbytes	9-Jul-09	Download
AN-1888 (Japanese): Application Note 1888 LM22670 Evaluation Board Inverting Topology and Application Notes	566 Kbytes
AN-1895: Application Note 1895 LM22671 Evaluation Board	249 Kbytes	14-Oct-08	Download
AN-1896: Application Note 1896 LM22672 Evaluation Board	258 Kbytes	14-Oct-08	Download
AN-1891: Application Note 1891 LM22679 Evaluation Board	232 Kbytes	14-Oct-08	Download
AN-1894: Application Note 1894 LM22673 Evaluation Board	255 Kbytes	14-Oct-08	Download
AN-1892: Application Note 1892 LM22677 Evaluation Board	237 Kbytes	14-Oct-08	Download
AN-1892 (Japanese): Application Note 1892 LM22677 Evaluation Board	287 Kbytes
AN-1885: Application Note 1885 LM22670 Evaluation Board	499 Kbytes	14-Oct-08	Download