LM22679

활성

SIMPLE SWITCHER® 4.5V~42V, 5A 스텝다운 레귤레이터(소프트 시작 및 전류 제한 조정 가능)

지금 주문

데이터 시트

document-pdfAcrobat LM22679/-Q1 42-V, 5-A SIMPLE SWITCHER® Step-Down Voltage Regulator With Easy-to-Use Package datasheet (Rev. M) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

LMR51450

활성

36V, 5A 동기식 벅 컨버터 Next-generation synchronous buck converter in ultra-small WSON package.

TLVM13660

활성

5mm x 5.5mm 향상된 HotRod™ QFN의 고밀도 36V 입력, 1V~6V 출력, 6A 전원 모듈 Save board space, simplify design and speed time to market with an integrated-inductor power module.

LM22679

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

5

Vin (min) (V)

4.5

Vin (max) (V)

42

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

500

Features

Adjustable current limit, Over Current Protection

Control mode

Voltage mode

Vout (min) (V)

1.285

Vout (max) (V)

37

Iq (typ) (µA)

3400

Duty cycle (max) (%)

90

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

5

Vin (min) (V)

4.5

Vin (max) (V)

42

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

500

Features

Adjustable current limit, Over Current Protection

Control mode

Voltage mode

Vout (min) (V)

1.285

Vout (max) (V)

37

Iq (typ) (µA)

3400

Duty cycle (max) (%)

90

TO-263 (NDR)

7

142.3416 mm² 10.16 x 14.01

New product available: LM61460 3-V to 36-V, 6-A low EMI synchronous converter
Wide input voltage range: 4.5 V to 42 V
Internally compensated voltage mode control
Stable with low-ESR ceramic capacitors
100-mΩ N-channel MOSFET
Output voltage options: -ADJ (outputs as low as 1.285 V) -5.0 (output fixed to 5 V)
±1.5% feedback reference accuracy
Switching frequency of 500 kHz
–40°C to 125°C operating junction temperature range
Adjustable soft start
Adjustable current limit
Integrated bootstrap diode
Fully WEBENCH enabled
LM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flow
PFM (exposed pad) package

New product available: LM61460 3-V to 36-V, 6-A low EMI synchronous converter
Wide input voltage range: 4.5 V to 42 V
Internally compensated voltage mode control
Stable with low-ESR ceramic capacitors
100-mΩ N-channel MOSFET
Output voltage options: -ADJ (outputs as low as 1.285 V) -5.0 (output fixed to 5 V)
±1.5% feedback reference accuracy
Switching frequency of 500 kHz
–40°C to 125°C operating junction temperature range
Adjustable soft start
Adjustable current limit
Integrated bootstrap diode
Fully WEBENCH enabled
LM22679-Q1 is AEC-Q100 qualified and manufactured on an automotive-grade flow
PFM (exposed pad) package

The LM22679 switching regulator provides all of the functions necessary to implement an efficient high-voltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5-V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch-current limit can be programmed with a single external resistor, allowing solution optimization. The LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.

The new product, LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare. Start WEBENCH design with LM61460

The LM22679 device is a member of Texas Instruments’ SIMPLE SWITCHER family. The SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

The LM22679 switching regulator provides all of the functions necessary to implement an efficient high-voltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5-V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch-current limit can be programmed with a single external resistor, allowing solution optimization. The LM22679 device also has built-in thermal shutdown and current limiting to protect against accidental overloads.

The new product, LM61460, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare. Start WEBENCH design with LM61460

The LM22679 device is a member of Texas Instruments’ SIMPLE SWITCHER family. The SIMPLE SWITCHER concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH design tool. TI’s WEBENCH tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

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기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

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22개 모두 보기

	유형	직함		날짜
*	Data sheet	LM22679/-Q1 42-V, 5-A SIMPLE SWITCHER® Step-Down Voltage Regulator With Easy-to-Use Package datasheet (Rev. M)	PDF \| HTML	2020/10/23
	Application note	SIMPLE SWITCHER Regulators Take Over Automotive Applications (Rev. B)	PDF \| HTML	2024/10/09
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024/03/25
	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-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B)		2013/05/06
	Application note	AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)		2013/05/06
	Application note	AN-1797 TO-263 THIN Package (Rev. A)		2013/04/24
	EVM User's guide	AN-1891 LM22679 Evaluation Board (Rev. E)		2013/04/24
	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
	Design guide	SIMPLE SWITCHER® Design Guide		2011/04/11
	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

LM22679EVAL — LM22679 조정 가능한 소프트 시작 및 스위칭 주파수를 지원하는 5A SIMPLE SWITCHER 레귤레이터 EVM

The LM22679 evaluation board is designed to demonstrate the capabilities of the LM22679 switching regulator. The LM22679 evaluation board is configured to provide an output voltage of 3.3V up to 5A load current with an input voltage range of 4.5V to 42V. Due to the low R_DS(ON) of the integrated (...)

사용 설명서: PDF