LM2675M-5.0/NOPB National Semiconductor, LM2675M-5.0/NOPB Datasheet

LM2675M-5.0/NOPB

Manufacturer Part Number

LM2675M-5.0/NOPB

Description

IC REG SIMPLE SWITCHER 8-SOIC

Manufacturer

National Semiconductor

Series

SIMPLE SWITCHER®r

Type

Step-Down (Buck)r

Datasheets

1.LM2675LD-5.0.pdf (26 pages)

2.LM2675M-5.0NOPB.pdf (5 pages)

Specifications of LM2675M-5.0/NOPB

Internal Switch(s)

Yes

Synchronous Rectifier

Number Of Outputs

Voltage - Output

Current - Output

Frequency - Switching

260kHz

Voltage - Input

6.5 ~ 40 V

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Package

8SOIC N

Minimum Input Voltage

8 V

Maximum Input Voltage

40 V

Switching Frequency

260(Typ) KHz

Operating Supply Voltage

6.5 to 40 V

Maximum Output Current

1 A

Output Type

Fixed

Output Voltage

5 V

Efficiency

90(Typ) %

Current, Input Bias

85 nA

Current, Output

1 A

Current, Supply

2.5 mA

Frequency, Oscillator

260 kHz

Package Type

SOIC

Regulator Type

Buck (Step-Down)

Temperature, Operating, Range

-40 to +125 °C

Voltage, Input

6.5 to 40 V

Voltage, Output

5 V

Primary Input Voltage

12V

No. Of Outputs

Output Current

No. Of Pins

Operating Temperature Range

-40Â°C To +125Â°C

Msl

MSL 1 - Unlimited

Current Rating

Rohs Compliant

Yes

For Use With

LM2675-5.0EVAL - EVALUATION BOARD FOR LM2675-5.0

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Power - Output

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

Other names

*LM2675M-5.0
*LM2675M-5.0/NOPB
LM2675M-5.0
LM2675M5.0

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM2675M-5.0/NOPB

Manufacturer:

Quantity:

200

Company:

H&T Electronics

Part Number:

LM2675M-5.0/NOPB

Quantity:

10 000

Current page: 1 of 5
Download datasheet (525Kb)

LM2675

SIMPLE SWITCHER

1A Step-Down Voltage Regulator

General Description

The LM2675 series of regulators are monolithic integrated

circuits built with a LMDMOS process. These regulators

provide all the active functions for a step-down (buck)

switching regulator, capable of driving a 1A load current with

excellent line and load regulation. These devices are avail-

able in fixed output voltages of 3.3V, 5.0V, 12V, and an

adjustable output version.

Requiring a minimum number of external components, these

regulators are simple to use and include patented internal

frequency compensation (Patent Nos. 5,382,918 and

5,514,947) and a fixed frequency oscillator.

The LM2675 series operates at a switching frequency of

260 kHz, thus allowing smaller sized filter components than

what would be needed with lower frequency switching regu-

lators. Because of its very high efficiency (

per traces on the printed circuit board are the only heat

sinking needed.

A family of standard inductors for use with the LM2675 are

available from several different manufacturers. This feature

greatly simplifies the design of switch-mode power supplies

using these advanced ICs. Also included in the datasheet

are selector guides for diodes and capacitors designed to

work in switch-mode power supplies.

Other features include a guaranteed

output voltage within specified input voltages and output

load conditions, and

ternal shutdown is included, featuring typically 50 µA

stand-by current. The output switch includes current limiting,

as well as thermal shutdown for full protection under fault

conditions.

Typical Application

SIMPLE SWITCHER

Windows

is a registered trademark of Microsoft Corporation.

is a registered trademark of National Semiconductor Corporation.

10% on the oscillator frequency. Ex-

1.5% tolerance on

90%), the cop-

Power Converter High Efficiency

To simplify the LM2675 buck regulator design procedure,

there exists computer design software, LM267X Made

Simple version 6.0.

Features

n Efficiency up to 96%

n Available in SO-8, 8-pin DIP and LLP packages

n Computer Design Software LM267X Made Simple

n Simple and easy to design with

n Requires only 5 external components

n Uses readily available standard inductors

n 3.3V, 5.0V, 12V, and adjustable output versions

n Adjustable version output voltage range: 1.21V to 37V

n Guaranteed 1A output load current

n 0.25Ω DMOS Output Switch

n Wide input voltage range: 8V to 40V

n 260 kHz fixed frequency internal oscillator

n TTL shutdown capability, low power standby mode

n Thermal shutdown and current limit protection

Typical Applications

n Simple High Efficiency (

n Efficient Pre-Regulator for Linear Regulators

n Positive-to-Negative Converter

(version 6.0)

conditions

Regulator

1.5% max output voltage tolerance over line and load

90%) Step-Down (Buck)

01280301

Related parts for LM2675M-5.0/NOPB

LM2675M-5.0/NOPB Summary of contents

Page 1

... The output switch includes current limiting, as well as thermal shutdown for full protection under fault conditions. Typical Application SIMPLE SWITCHER ® registered trademark of National Semiconductor Corporation. Windows ® registered trademark of Microsoft Corporation. Power Converter High Efficiency ® To simplify the LM2675 buck regulator design procedure, there exists computer design software, LM267X Made Simple version 6 ...

Page 2

... ADJ LM2675N-ADJ See NSC Package Drawing Number MO8A/N08E 01280338 TABLE 1. Package Marking LM2675LD-12 S000DB S000DB S000EB S000EB S000FB S000FB S000GB S000GB LM2675M-12 2675M-12 2675M-12 LM2675M-3.3 2675M-3.3 2675M-3.3 LM2675M-5.0 2675M-5.0 2675M-5.0 2675M-ADJ 2675M-ADJ LM2675N-12 LM2675N-12 LM2675N-3.3 LM2675N-3.3 LM2675N-5.0 LM2675N-5.0 LM2675N-ADJ ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ON/OFF Pin Voltage Switch Voltage to Ground Boost Pin Voltage Feedback Pin Voltage ESD Susceptibility Human Body Model (Note 2) Power Dissipation ...

Page 4

LM2675-ADJ (Continued) Symbol Parameter η Efficiency V = 12V All Output Voltage Versions Specifications with standard type face are for T ture Range. Unless otherwise specified, V sion, and I = 100 mA. LOAD Symbol Parameters DEVICE PARAMETERS ...

Page 5

... Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC Order Number LM2675M-3.3, LM2675M-5.0, LM2675M-12 or LM2675M-ADJ NS Package Number M08A 24 ...

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