LM2575HV

更新时间： 2024-11-05 12:09:43

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
44页	6007K
描述
LM1575/LM2575/LM2575HV SIMPLE SWITCHERÂ® 1A Step-Down Voltage Regulator

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LM2575HV 数据手册

LM1575, LM2575-N, LM2575HV

www.ti.com

SNVS106E –MAY 1999–REVISED APRIL 2013

LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Check for Samples: LM1575, LM2575-N, LM2575HV

FEATURES

DESCRIPTION

The LM2575 series of regulators are monolithic

integrated circuits that provide all the active functions

for a step-down (buck) switching regulator, capable of

driving a 1A load with excellent line and load

regulation. These devices are available in fixed output

voltages of 3.3V, 5V, 12V, 15V, and an adjustable

output version.

•

3.3V, 5V, 12V, 15V, and Adjustable Output

Versions

•

Adjustable Version Output Voltage Range,

–

1.23V to 37V (57V for HV Version) ±4%

Max Over

–

Line and Load Conditions

Requiring

minimum number of external

•

Specified 1A Output Current

components, these regulators are simple to use and

include internal frequency compensation and a fixed-

frequency oscillator.

Wide Input Voltage Range, 40V up to 60V for

HV Version

•

Requires Only 4 External Components

The LM2575 series offers

high-efficiency

52 kHz Fixed Frequency Internal Oscillator

replacement for popular three-terminal linear

regulators. It substantially reduces the size of the

heat sink, and in many cases no heat sink is

required.

TTL Shutdown Capability, Low Power Standby

Mode

•

High Efficiency

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.

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit

Protection

P⁺Product Enhancement Tested

•

Other features include a specified ±4% tolerance on

output voltage within specified input voltages and

output load conditions, and ±10% on the oscillator

frequency. External shutdown is included, featuring

50 μA (typical) standby current. The output switch

includes cycle-by-cycle current limiting, as well as

thermal shutdown for full protection under fault

conditions.

APPLICATIONS

•

Simple High-Efficiency Step-Down (Buck)

Regulator

•

Efficient Pre-Regulator for Linear Regulators

On-Card Switching Regulators

Positive to Negative Converter (Buck-Boost)

Typical Application

(Fixed Output Voltage Versions)

Pin numbers are for the TO-220 package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SIMPLE SWITCHER is a registered trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...44

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与LM2575HV相关器件

型号	品牌	获取价格	描述	数据表
LM2575HV3.3MWC	NSC	获取价格	IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator o
LM2575HVADJMDC	NSC	获取价格	IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or
LM2575HVADJMWC	TI	获取价格	3.2A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, UUC, WAFER
LM2575HVM-12	TI	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVM-12	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVM-12EP	NSC	获取价格	IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5, TO-263, 5 PIN, Switching R
LM2575HVM-15	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVM-15	TI	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVM-15/NOPB	TI	获取价格	3.2A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24
LM2575HVM-5.0	TI	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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