RoHS Compliance Information	Size in Kbytes	Date
LM3150 SIMPLE SWITCHER ® CONTROLLER, 42V Synchronous Step-Down	469 Kbytes	17-Oct-08	Download
LM3150 SIMPLE SWITCHER ® CONTROLLER, 42V Synchronous Step-Down (Japanese)	716 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

LM3152-3.3DEMO

LM3152 - RD-164 - Demonstration Board

Full production

N/A

1+

$19.00

1

-

N/A

N/A

LM3150MH

TSSOP EXP PAD

14

NOPB

1

260

RoHS

N/A

Full production

N/A

1K+

$2.30

rail of 94

NSUZXYTT LM3150 MH

8 weeks

N/A

LM3150MHE

TSSOP EXP PAD

14

NOPB

1

260

RoHS

N/A

Full production

N/A

1K+

$2.30

reel of 250

NSUZXYTT LM3150 MH

6 weeks

N/A

LM3150MHX

TSSOP EXP PAD

14

NOPB

1

260

RoHS

N/A

Full production

N/A

1K+

$2.30

reel of 2500

NSUZXYTT LM3150 MH

8 weeks

N/A

LM3150-250EVAL

Evaluation Board for LM3150-250 kHz - SIMPLE SWITCHER® CONTROLLER, 42V Synchronous Step-Down

Full production

N/A

1+

$29.00

1

-

8 weeks

N/A

LM3150-500EVAL

Evaluation Board for LM3150-500 kHz - SIMPLE SWITCHER® CONTROLLER, 42V Synchronous Step-Down

Full production

N/A

1+

$29.00

1

-

8 weeks

N/A

LM3150-750EVAL

Evaluation Board for LM3150-750 kHz - SIMPLE SWITCHER® CONTROLLER, 42V Synchronous Step-Down

Full production

N/A

1+

$29.00

1

-

8 weeks

N/A

General Description

The LM3150 SIMPLE SWITCHER ® Controller is an easy to use and simplified step down power controller capable of providing up to 12A of output current in a typical application. Operating with an input voltage range of 6V-42V, the LM3150 features an adjustable output voltage down to 0.6V. The switching frequency is adjustable up to 1 MHz and the synchronous architecture provides for highly efficient designs. The LM3150 controller employs a Constant On-Time (COT) architecture with a proprietary Emulated Ripple Mode (ERM) control that allows for the use of low ESR output capacitors, which reduces overall solution size and output voltage ripple. The Constant On-Time (COT) regulation architecture allows for fast transient response and requires no loop compensation, which reduces external component count and reduces design complexity.

Fault protection features such as thermal shutdown, under-voltage lockout, over-voltage protection, short-circuit protection, current limit, and output voltage pre-bias startup allow for a reliable and robust solution.

The LM3150 SIMPLE SWITCHER ® concept provides for an easy to use complete design using a minimum number of external components and National’s WEBENCH ® online design tool. WEBENCH ® provides design support for every step of the design process and includes features such as external component calculation with a new MOSFET selector, electrical simulation, thermal simulation, and Build-It boards for prototyping.

Reliability Metrics

Design Tools

Title	Size in Kbytes	Date
Downloadable LM315x Quick Start Simple Switcher Controller Component Calculator	1861 Kbytes	20-Oct-2008	View
Article - Emulated Ripple Technique Advances Hysteretic Switchmode Supplies			View

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

Application Notes

Title	Size in Kbytes	Date
AN-1900: Application Note 1900 LM3150 Evaluation Boards	626 Kbytes	14-Oct-08	Download
AN-1229: Application Note 1229 SIMPLE SWITCHER PCB Layout Guidelines	229 Kbytes	1-May-04	Download
AN-1229 (Japanese): Application Note 1229 SIMPLE SWITCHER PCB Layout Guidelines	304 Kbytes
AN-1229 (Chinese): Application Note 1229 SIMPLE SWITCHER PCB Layout Guidelines	668 Kbytes
AN-1481: Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs	574 Kbytes	27-Sep-06	Download
AN-1481 (Japanese): Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs	220 Kbytes
AN-1481 (Chinese): Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs	421 Kbytes