Datasheet > 电源电路 > 开关式稳压器或控制器> LM2575HVN-ADJ

LM2575HVN-ADJ

更新时间： 2024-02-05 05:50:39

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
SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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LM2575HVN-ADJ 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	SOIC-24	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	7 weeks	风险等级：	5.59
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：	40 V
最小输入电压：	4 V	标称输入电压：	12 V
JESD-30 代码：	R-PDSO-G24	JESD-609代码：	e3
长度：	15.42 mm	湿度敏感等级：	2
功能数量：	1	端子数量：	24
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	3.2 A	最大输出电压：	37 V
最小输出电压：	1.23 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP24,.4
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	250	座面最大高度：	2.64 mm
标称供电电压 (Vsup)：	12 V	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	63 kHz
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn) - annealed
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	7.52 mm	Base Number Matches：	1

LM2575HVN-ADJ 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LM2575HVN-ADJ相关器件

型号	品牌	描述	获取价格	数据表
LM2575HVN-ADJ/NOPB	TI	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator	获取价格
LM2575HVN-ADJEP	NSC	IC 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5, TO-263, 5 PIN, Switching R	获取价格
LM2575HVS-12	ROCHESTER	3.2A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSSO5, PLASTIC, TO-263, 5 PIN	获取价格
LM2575HVS-12	TI	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator	获取价格
LM2575HVS-12	NSC	SIMPLE SWITCHER 1A Step-Down Voltage Regulator	获取价格
LM2575HVS-12/NOPB	TI	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator	获取价格

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