LM5575

활성

6V~75V, 1.5A 넓은 입력 전압 범위 스텝 다운 레귤레이터

지금 주문하기

데이터 시트

document-pdfAcrobat LM5575 75V, 1.5A Step-Down Switching Regulator datasheet (Rev. H) (영어) PDF | HTML

LM5575

활성

데이터 시트

지금 주문하기

제품 상세 정보

Rating

Catalog

Topology

Buck

Iout (max) (A)

1.5

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

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Duty cycle (max) (%)

95

Rating

Catalog

Topology

Buck

Iout (max) (A)

1.5

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

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Duty cycle (max) (%)

95

HTSSOP (PWP)

16

32 mm² 5 x 6.4

Integrated 75V, 330mΩ N-Channel MOSFET
Ultra-wide input voltage range from 6V to 75V
Adjustable output voltage as low as 1.225V
1.5% feedback reference accuracy
Operating frequency adjustable between 50kHz and 500kHz with a single resistor
Controller or peripheral frequency synchronization
Adjustable soft start
Emulated current mode control architecture
Wide bandwidth error amplifier
Built-in protection
Create a custom design using the LM5575 with the WEBENCH Power Designer

Integrated 75V, 330mΩ N-Channel MOSFET
Ultra-wide input voltage range from 6V to 75V
Adjustable output voltage as low as 1.225V
1.5% feedback reference accuracy
Operating frequency adjustable between 50kHz and 500kHz with a single resistor
Controller or peripheral frequency synchronization
Adjustable soft start
Emulated current mode control architecture
Wide bandwidth error amplifier
Built-in protection
Create a custom design using the LM5575 with the WEBENCH Power Designer

The LM5575 is an easy-to-use buck regulator that 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 LM5575 delivers 1.5A of continuous output current with an integrated 330mΩ 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 LM5575 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, 16-pin HTSSOP package that features an exposed die attach pad for thermal dissipation. The LM5575 is supported by the full suite of WEBENCH circuit design and selection simulation services online design tools.

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22개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	Data sheet	LM5575 75V, 1.5A Step-Down Switching Regulator datasheet (Rev. H)	PDF \| HTML	2026/04/22
	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
	Technical article	How to increase system reliability and simplify design using DC/DC converters	PDF \| HTML	2016/06/13
	Technical article	The importance of accurate switching frequency and current limit when selecting bu	PDF \| HTML	2016/04/19
	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
	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 1.5 Amp Buck Regulator Using the LM5575 and LM25575 (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

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평가 보드

LM5575EVAL — 75V, 1.5A 스텝다운 스위칭 레귤레이터 평가 모듈

The LM5575 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5575 regulator IC. The evaluation board provides a 5V output with a 1.5A current capability. The ultra-wide input voltage ranges (...)

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