LM2575D2T-12 ON Semiconductor, LM2575D2T-12 Datasheet

LM2575D2T-12

Manufacturer Part Number

LM2575D2T-12

Description

EASY SWITCHERE 1.0 A STEP-DOWN VOLTAGE REGULATOR

Manufacturer

ON Semiconductor

Datasheet

1.LM2575D2T-12.pdf (28 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM2575D2T-12R4G

Manufacturer:

ON/安森美

Quantity:

20 000

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Easy Switcher

Step-Down Voltage Regulator

suited for easy and convenient design of a step–down switching regulator

(buck converter). All circuits of this series are capable of driving a 1.0 A load

with excellent line and load regulation. These devices are available in fixed

output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version.

components to simplify the power supply design. Standard series of

inductors optimised for use with the LM2575 are offered by several different

inductor manufacturers.

is significantly higher in comparison with popular three–terminal linear

regulators, especially with higher input voltages. In many cases, the power

dissipated by the LM2575 regulator is so low, that no heatsink is required or

its size could be reduced dramatically.

voltage within specified input voltages and output load conditions, and 10%

on the oscillator frequency ( 2% over 0 C to 125 C). External shutdown is

included, featuring 80 A typical standby current. The output switch includes

cycle–by–cycle current limiting, as well as thermal shutdown for full

protection under fault conditions.

Features

Applications

MOTOROLA ANALOG IC DEVICE DATA

Maximum Over Line and Load Conditions

The LM2575 series of regulators are monolithic integrated circuits ideally

These regulators were designed to minimize the number of external

Since the LM2575 converter is a switch–mode power supply, its efficiency

The LM2575 features include a guaranteed 4% tolerance on output

3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions

Adjustable Version Output Voltage Range of 1.23 V to 37 V 4%

Guaranteed 1.0 A Output Current

Wide Input Voltage Range: 4.75 V to 40 V

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

Simple and High–Efficiency Step–Down (Buck) Regulators

Efficient Pre–Regulator for Linear Regulators

On–Card Switching Regulators

Positive to Negative Converters (Buck–Boost)

Negative Step–Up Converters

Power Supply for Battery Chargers

1.0 A

LM2575T–**

LM2575TV–**

LM2575D2T–**

** = Voltage Option, ie. 3.3, 5.0, 12, 15 V and

DEVICE TYPE/NOMINAL OUTPUT VOLTAGE

Motorola, Inc. 1999

LM2575–3.3

LM2575–5

LM2575–12

LM2575–15

LM2575–Adj

PLASTIC PACKAGE

=\Adjustable Output.

Device

Heatsink surface (shown as terminal 6 in case outline

Pin 1. V in

connected to Pin 3.

Heatsink surface

D2T SUFFIX

CASE 314D

VOLTAGE REGULATOR

CASE 314B

CASE 936A

TV SUFFIX

T SUFFIX

(D 2 PAK)

2. Output

3. Ground

4. Feedback

5. ON/OFF

ORDERING INFORMATION

EASY SWITCHER

1.0 A STEP–DOWN

drawing) is connected to Pin 3.

SEMICONDUCTOR

TECHNICAL DATA

LM2575

Temperature Range

T J = –40 to +125 C

Order this document by LM2575/D

Operating

1.23 V to 37 V

Surface Mount

Vertical Mount

Straight Lead

3.3 V

5.0 V

12 V

15 V

Rev 2, 07/1999

Package

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