供应1A线性稳压IC LM2575

价格：		面议
型号/规格：		LM2575S-ADJ
品牌/商标：		NSC

详细介绍
企业详情

型号标识 / 参数

LM2575S-ADJ/LM2575SX-ADJ的型号标识和参数如下表所示：

LM2575S-ADJ/LM2575SX-ADJ 型号标识
LM2575	基本型号
S	封装类型，TO-263(1)
X	包装类型，卷带装
ADJ	输出电压可调节版
LM2575S-ADJ/LM2575SX-ADJ 参数特性
输入电压	8V～40V
输出电压	1.23V～37V
输出电流	1000 mA
类型	降压
温度等级	-40℃～125℃

(1)M=SOIC WIDE,N=MDIP,T=TO-220,S=TO-263

封装信息

LM2575S-ADJ的封装为：
类型：TO-263
引脚：5
标准：JEDEC MO-169-AB
体宽：400 mils
长度：390 mils
厚度：179 mils
引脚间距：67 mils

包装规格

LM2575S-ADJ/LM2575SX-ADJ的包装规格为：
包装一：LM2575S-ADJ
类型：Tube（管装）
每管：45 pcs
总共：20 管；900 pcs
包装二：LM2575SX-ADJ
类型：Tape&Reel（卷带装）
每盘：500 pcs

Features

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

Guaranteed 1A output current

Wide input voltage range, 40V up to 60V for HV version

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

P + Product Enhancement tested

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.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high-efficiency 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.

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.

Other features include a guaranteed ±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)

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