Datasheet > 电源电路 > 开关式稳压器或控制器> LM2575HVS-5.0EP

LM2575HVS-5.0EP

更新时间： 2024-11-25 11:48:07

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
26页	1062K
描述
SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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中文翻译

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数据手册

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LM2575HVS-5.0EP 数据手册

December 2004

LM2575EP/LM2575HVEP

SIMPLE SWITCHER^®1A Step-Down Voltage Regulator

ENHANCED PLASTIC

General Description

•

Extended Temperature Performance of

−40˚C ≤ T_J≤ +125˚C

The LM2575EP series of regulators are monolithic inte-

grated 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 de-

vices are available in fixed output voltages of 3.3V, 5V, 12V,

15V, and an adjustable output version.

•

Baseline Control - Single Fab & Assembly Site

Process Change Notification (PCN)

Qualification & Reliability Data

Solder (PbSn) Lead Finish is standard

Requiring a minimum number of external components, these

regulators are simple to use and include internal frequency

compensation and a fixed-frequency oscillator.

Enhanced Diminishing Manufacturing Sources (DMS)

Support

The LM2575EP 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.

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

A standard series of inductors optimized for use with the

LM2575EP are available from several different manufactur-

ers. This feature greatly simplifies the design of switch-mode

power supplies.

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

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.

Applications

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

n Efficient pre-regulator for linear regulators

n On-card switching regulators

n Positive to negative converter (Buck-Boost)

n Selected Military Applications

n Selected Avionics Applications

Ordering Information

PART NUMBER

LM2575HVS-5.0EP

LM2575HVS-ADJEP

(Notes 1, 2)

VID PART NUMBER

NS PACKAGE NUMBER (Note 3)

V62/04742-01

V62/04742-02

TBD

TS5B

TBD

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

DS201132

www.national.com

12 3 4 5 6 7...26

中文翻译

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与LM2575HVS-5.0EP相关器件

型号	品牌	获取价格	描述	数据表
LM2575HVS-5.0EP/NOPB	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR,SIP,5PIN,PLASTIC
LM2575HVS-ADJ	TI	获取价格	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVS-ADJ	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVS-ADJ	UMW	获取价格	DC-DC芯片
LM2575HVS-ADJ/NOPB	TI	获取价格	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVS-ADJEP	NSC	获取价格	SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575HVS-ADJEP/NOPB	NSC	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR,SIP,5PIN,PLASTIC
LM2575HVS-ADJEP/NOPB	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR,SIP,5PIN,PLASTIC
LM2575HVSX-12	ETC	获取价格	Voltage-Mode SMPS Controller
LM2575HVSX-12/NOPB	TI	获取价格	3.2A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSSO5, PLASTIC, TO-263, 5 PIN

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