Datasheet > 电源电路 > 开关式稳压器或控制器> LM2575S-12EP

LM2575S-12EP

更新时间： 2024-11-21 13:09:19

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
27页	718K
描述
IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5, TO-220, 5 PIN, Switching Regulator or Controller

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LM2575S-12EP 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.54
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	60 V
最小输入电压：	8 V	标称输入电压：	12 V
JESD-30 代码：	R-PSSO-G5	长度：	10.16 mm
功能数量：	1	端子数量：	5
最高工作温度：	125 °C	最低工作温度：	-40 °C
最大输出电流：	3.2 A	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	4.65 mm
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	63 kHz	温度等级：	AUTOMOTIVE
端子形式：	GULL WING	端子节距：	1.7 mm
端子位置：	SINGLE	宽度：	8.635 mm
Base Number Matches：	1

LM2575S-12EP 数据手册

August 2004

LM1575/LM2575/LM2575HV

SIMPLE SWITCHER^®1A Step-Down Voltage Regulator

General Description

Features

n 3.3V, 5V, 12V, 15V, and adjustable output versions

n Adjustable version output voltage range,

1.23V to 37V (57V for HV version) 4% max over

line and load conditions

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 avail-

able in fixed output voltages of 3.3V, 5V, 12V, 15V, and an

adjustable output version.

n Guaranteed 1A output current

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

n Requires only 4 external components

n 52 kHz fixed frequency internal oscillator

n TTL shutdown capability, low power standby mode

n High efficiency

n Uses readily available standard inductors

n Thermal shutdown and current limit protection

n P⁺Product Enhancement tested

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 re-

duces 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.

Applications

n Simple high-efficiency step-down (buck) regulator

n Efficient pre-regulator for linear regulators

n On-card switching regulators

Other features include a guaranteed 4% tolerance on out-

put voltage within specified input voltages and output load

conditions, and 10% on the oscillator frequency. External

shutdown is included, featuring 50 µA (typical) standby cur-

rent. The output switch includes cycle-by-cycle current limit-

ing, as well as thermal shutdown for full protection under

fault conditions.

n Positive to negative converter (Buck-Boost)

Typical Application (Fixed Output Voltage

Versions)

01147501

Note: Pin numbers are for the TO-220 package.

SIMPLE SWITCHER^®is a registered trademark of National Semiconductor Corporation.

DS011475

www.national.com

12 3 4 5 6 7...27

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与LM2575S-12EP相关器件

型号	品牌	获取价格	描述	数据表
LM2575S-12T	SEMTECH	获取价格	Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN
LM2575S-12TR	SEMTECH	获取价格	1A & 3A Miniconverter Switching Regulators
LM2575S-12TRT	SEMTECH	获取价格	Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN
LM2575S-15	TI	获取价格	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575S-15	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575S-15/NOPB	TI	获取价格	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575S-15EP	NSC	获取价格	IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5, TO-220, 5 PIN, Switching R
LM2575S-3.3	SEMTECH	获取价格	1A & 3A Miniconverter Switching Regulators
LM2575S-3.3	TI	获取价格	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575S-3.3	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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