LM5575

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Abwärtsregler, 6 bis 75 V, 1,5 A, großer Eingangsspannungsbereich

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Datenblatt

document-pdfAcrobat LM5575/LM5575Q SIMPLE SWITCHER® 75V, 1.5A Step-Down Switching Regulator datasheet (Rev. G) (Englisch)

LM5575

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

1.5

Vin (min) (V)

6

Vin (max) (V)

75

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

500

Features

Enable, Frequency synchronization, Over Current Protection, Tracking

Control mode

current mode

Vout (min) (V)

1.23

Vout (max) (V)

70

Iq (typ) (µA)

1000

Duty cycle (max) (%)

95

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

1.5

Vin (min) (V)

6

Vin (max) (V)

75

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

500

Features

Enable, Frequency synchronization, Over Current Protection, Tracking

Control mode

current mode

Vout (min) (V)

1.23

Vout (max) (V)

70

Iq (typ) (µA)

1000

Duty cycle (max) (%)

95

HTSSOP (PWP)

16

32 mm² 5 x 6.4

LM5575Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (−40°C to + 125°C Operating Junction Temperature)
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 Single Resistor
Master or Slave Frequency Synchronization
Adjustable Soft-Start
Emulated Current Mode Control Architecture
Wide Bandwidth Error Amplifier
Built-in Protection
Automotive Grade Product Datasheet that is AEC-Q100 Grade 0 Qualified is Available Upon Request.
- (−40°C to + 150°C Operating Junction Temperature)

Package

HTSSOP-16EP (Exposed Pad)

WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

LM5575Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (−40°C to + 125°C Operating Junction Temperature)
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 Single Resistor
Master or Slave Frequency Synchronization
Adjustable Soft-Start
Emulated Current Mode Control Architecture
Wide Bandwidth Error Amplifier
Built-in Protection
Automotive Grade Product Datasheet that is AEC-Q100 Grade 0 Qualified is Available Upon Request.
- (−40°C to + 150°C Operating Junction Temperature)

Package

HTSSOP-16EP (Exposed Pad)

WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

The LM5575 is an easy to use SIMPLE SWITCHER® 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 6 - 75V, the LM5575 delivers 1.5A of continuous output current with an integrated 330mΩ N-Channel MOSFET. The regulator utilizes 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 IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5575 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced HTSSOP-16 package featuring an exposed die attach pad for thermal dissipation. The LM5575 is supported by the full suite of WEBENCH On-Line design tools.

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Alle anzeigen 23

	Typ	Titel		Datum
*	Data sheet	LM5575/LM5575Q SIMPLE SWITCHER® 75V, 1.5A Step-Down Switching Regulator datasheet (Rev. G)		04 Apr 2013
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	25 Mär 2024
	White paper	Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A)		03 Jul 2018
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Technical article	How to increase system reliability and simplify design using DC/DC converters	PDF \| HTML	13 Jun 2016
	Technical article	The importance of accurate switching frequency and current limit when selecting bu	PDF \| HTML	19 Apr 2016
	Application note	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		12 Sep 2014
	Application note	AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)		06 Mai 2013
	EVM User's guide	AN-1569 LM5575 Evaluation Board (Rev. C)		26 Apr 2013
	Application note	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		24 Apr 2013
	Application note	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		23 Apr 2013
	Application note	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		23 Apr 2013
	Application note	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		23 Apr 2013
	Application note	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		23 Apr 2013
	Application note	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		23 Apr 2013
	Application note	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		23 Apr 2013
	Application note	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		23 Apr 2013
	Application note	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		23 Apr 2013
	Application note	Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575 (Rev. B)		23 Apr 2013
	Application note	Understanding and Applying Current-Mode Control Theory		19 Aug 2007
	Application note	Input and Output Capacitor Selection		19 Sep 2005
	More literature	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		12 Jul 2005
	Application note	AN-643 EMI/RFI Board Design (Rev. B)		03 Mai 2004

Design und Entwicklung

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Evaluierungsplatine

LM5575EVAL — Abwärtsschaltregler, 75 V, 1,5 A – Evaluierungsmodul

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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