LM2575R HTC [HTC Korea TAEJIN Technology Co.], LM2575R Datasheet

LM2575R

Manufacturer Part Number

LM2575R

Description

1A, 52kHz, Step-Down Switching Regulator

Manufacturer

HTC [HTC Korea TAEJIN Technology Co.]

Datasheet

1.LM2575R.pdf (13 pages)

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circuits ideally suited for easy and convenient design of a

step-down switching regualtor(buck converter).

All circuits of this series are capable of driving a 1A load

with excellent line and load regulation. These devices are

available in fixed output voltages of 3.3V, 5.0V,12V, 15V,

and an adjustable output version.

These regulatiors were designed to minimize the number of externalcomponents to simplify the

power supply design. Standard series of inductors optimized for use with the LM2575 are offered

by several different inductor manufacturers.

comparison with popular three-terminal limear reguators, especially with higher input voltages.

be reduced dramatically. 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. The LM2575 features include a guaranteed +/- 4% tolerance

on output voltage within specified input voltages and output load conditions, and +/-10% on the

oscillator frequency (+/- 2% over 0℃ to 125 ℃).

cycle-bycycle current limiting, as well as thermal shutdown for full protection under fault conditions.

2008 - Ver. 1.0

FEATURES

Applications

DESCRIPTION

1A, 52kHz, Step-Down Switching Regulator

The LM2575 series of regulators are monolithic integrated

Since the LM2575 converter is a switch-mode power supply, its efficiency is significantly higher in

In many cases, the power dissipated is so low that no heatsink is required or its size could

External shutdown is included, featuring 80 ㎂(typical) standby current. The output switch includes

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

Adjustable Version Output Voltage Range, 1.23 to 37V

+/- 4% AG10 Maximum Over Line and Load Conditions

Guaranteed 1A Output Current

Wide Input Voltage Range

Requires Only 4 External Components

52kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby Mode

High Efficiency

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

Moisture Sensitivity Level 3

Simple High-Efficiency Step-Down(Buck) Regulator

Efficient Pre-Regulator for Linear Regulators

On-Card Switching Regulators

Positive to Negative Converter(Buck-Boost)

Negative Step-Up Converters

Power Supply for Battery Chargers

− 1 −

LM2575T-X.X

LM2575TV-X.X

LM2575R

ORDERING INFORMATION

1. Vin 2. Output

4. Feedback 5. On/Off

Device

TO-220 PKG

TO-220V PKG

TO-263 PKG

LM2575R-X.X

LM2575T-X.X

Marking

3. Ground

LM2575

Package

TO-220V

TO-220

TO-263

HTC

Related parts for LM2575R

LM2575R Summary of contents

Page 1

... Ver. 1.0 TO-220 PKG 1 TO-220V PKG 1 TO-263 PKG 1 1. Vin 2. Output 4. Feedback 5. On/Off ORDERING INFORMATION Device LM2575T-X.X LM2575TV-X.X LM2575R − 1 − LM2575 Ground Marking Package LM2575T-X.X TO-220 LM2575T-X.X TO-220V LM2575R-X.X TO-263 HTC ...

Page 2

Step-Down Switching Regulator Typical Application (Fixed Output Voltage Versions) ABSOLUTE MAXIMUM RATINGS (Absolute Maximum Ratings indicate limits beyond which damage to the device may occur) Rating Maximum Supply Voltage On/Off Pin Input Voltage Output Voltage to Ground (Steady-State) ...

Page 3

Step-Down Switching Regulator OPERATING RATINGS (Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications, see the Electrical Characteristics.) Rating Operating Junction Temperature Range Supply ...

Page 4

Step-Down Switching Regulator ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable version, Vin = 25 V for the 12 V version, and Vin = 30 V for the 15 ...

Page 5

Step-Down Switching Regulator TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 15) − 5 − LM2575 HTC ...

Page 6

Step-Down Switching Regulator TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 15) − 6 − LM2575 HTC ...

Page 7

Step-Down Switching Regulator LM2575 LM2575 − 7 − LM2575 HTC ...

Page 8

Step-Down Switching Regulator PIN FUNCTION DESCRIPTION Symbol 1 This pin is the positive input supply for the LM2575 step–down switching Vin regulator.In order to minimize voltage transients and to supply the switching currents needed by the regulator, a ...

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LM2575R HTC [HTC Korea TAEJIN Technology Co.], LM2575R Datasheet

LM2575R

Related parts for LM2575R

LM2575R Summary of contents

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