LM5576

활성

6V~75V, 3A 넓은 입력 전압 범위 스텝 다운 레귤레이터

지금 주문

데이터 시트

document-pdfAcrobat LM5576 75V, 3A, Step-Down Switching Regulator datasheet (Rev. K) (영어) PDF | HTML

LM5576

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

75

Vin (min) (V)

6

Vout (max) (V)

70

Vout (min) (V)

1.23

Features

Enable, Frequency synchronization, Over Current Protection, Tracking

Control mode

current mode

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

500

Operating temperature range (°C)

-40 to 125

Iq (typ) (µA)

1000

Duty cycle (max) (%)

95

Type

Converter

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

75

Vin (min) (V)

6

Vout (max) (V)

70

Vout (min) (V)

1.23

Features

Enable, Frequency synchronization, Over Current Protection, Tracking

Control mode

current mode

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

500

Operating temperature range (°C)

-40 to 125

Iq (typ) (µA)

1000

Duty cycle (max) (%)

95

Type

Converter

HTSSOP (PWP)

20

41.6 mm² 6.5 x 6.4

Ultra-wide input voltage range from 6V to 75V
Integrated 75V, 170mΩ N-channel MOSFET
Adjustable output voltage as low as 1.225V
1.5% feedback reference accuracy
Operating frequency adjustable between 50kHz and 500kHz with single resistor
Controller or peripheral frequency synchronization
Adjustable soft start
Emulated current mode control architecture
Wide bandwidth error amplifier
Built-in protection
HTSSOP-20EP (exposed pad)
Create a custom design using the LM5576 with the WEBENCH Power Designer

Ultra-wide input voltage range from 6V to 75V
Integrated 75V, 170mΩ N-channel MOSFET
Adjustable output voltage as low as 1.225V
1.5% feedback reference accuracy
Operating frequency adjustable between 50kHz and 500kHz with single resistor
Controller or peripheral frequency synchronization
Adjustable soft start
Emulated current mode control architecture
Wide bandwidth error amplifier
Built-in protection
HTSSOP-20EP (exposed pad)
Create a custom design using the LM5576 with the WEBENCH Power Designer

The LM5576 is an easy-to-use, buck regulator, which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6V to 75V, the LM5576 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator uses an emulated current mode architecture which provides inherent line regulation, tight load transient response, and ease-of-loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple ICs from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5576 makes sure of robustness with cycle-by-cycle current limit, short-circuit protection, thermal shutdown, and remote shutdown. The device is available in a power-enhanced, 20-pin HTSSOP package that features an exposed die attach pad for thermal dissipation. The LM5576 is supported by the full suite of WEBENCH circuit design and selection simulation services online design tools.

filter

기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

LM76003

활성

3.5V~60V, 3.5A 동기 스텝다운 전압 컨버터 Next-generation 3.5-V to 60-V, 3.5-A synchronous step-down voltage converter.

LMR38020

활성

40uA IQ를 지원하는 SIMPLE SWITCHER® 전원 컨버터 4.2V~80V, 2A 동기 벅 Higher voltage, 80 V, with 2-A current capability, supporting high cells battery pack and POE application.

기술 자료

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21개 모두 보기

	유형	직함		날짜
*	Data sheet	LM5576 75V, 3A, Step-Down Switching Regulator datasheet (Rev. K)	PDF \| HTML	2025/11/03
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024/03/25
	White paper	Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A)		2018/07/03
	Selection guide	Power Management Guide 2018 (Rev. R)		2018/06/25
	Application note	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		2014/09/12
	Application note	AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)		2013/05/06
	EVM User's guide	AN-1570 LM5576 Evaluation Board (Rev. B)		2013/04/26
	Application note	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		2013/04/24
	Application note	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		2013/04/23
	Application note	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		2013/04/23
	Application note	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		2013/04/23
	Application note	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		2013/04/23
	Application note	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		2013/04/23
	Application note	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		2013/04/23
	Application note	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		2013/04/23
	Application note	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		2013/04/23
	Application note	Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576 (Rev. B)		2013/04/23
	Application note	Understanding and Applying Current-Mode Control Theory		2007/08/19
	Application note	Input and Output Capacitor Selection		2005/09/19
	More literature	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		2005/07/12
	Application note	AN-643 EMI/RFI Board Design (Rev. B)		2004/05/03

설계 및 개발

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평가 보드

LM5576EVAL — 75V, 3A 스텝다운 스위칭 레귤레이터 평가 모듈

The LM5576 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5576 regulator IC. The evaluation board provides a 5V output with a 3A current capability. The ultra-wide input voltage ranges from (...)

사용 설명서: PDF