홈 전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨버터(통합 FET)

LM26420-Q1

활성

듀얼 2A, 차량용 인증 고효율 동기형 DC/DC 컨버터

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS62442-Q1 활성 오토모티브 2.75V~6V, 듀얼 2A 또는 3A 및 1A 출력, 주파수 조정 가능, 스텝다운 컨버터 Next generation dual buck with smaller size wand broader VIN range.

LM26420-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 550 Switching frequency (max) (kHz) 2200 Features Enable, Light Load Efficiency, Light load efficiency, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iq (typ) (µA) 900 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 550 Switching frequency (max) (kHz) 2200 Features Enable, Light Load Efficiency, Light load efficiency, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iq (typ) (µA) 900 Duty cycle (max) (%) 98
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4 WQFN (RUM) 16 16 mm² 4 x 4
  • Qualified for automotive applications
  • AEC Q100-qualified with the following results:
    • Device temperature grade 0 (Q0): –40°C to +150°C ambient operating temperature
    • Device temperature grade 1 (Q1): –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Compliant with CISPR25 class 5 conducted emissions
  • Input voltage range of 3 V to 5.5 V
  • Output voltage range of 0.8 V to 4.5 V
  • 2-A Output current per regulator
  • Fixed 2.2-MHz switching frequency
  • 0.8 V, 1.5% Internal voltage reference
  • Internal soft start
  • Independent power good and precision enable for each output
  • Current mode, PWM operation
  • Thermal shutdown
  • Overvoltage protection
  • Start-up into prebiased output loads
  • Regulators are 180° out of phase
  • Create a custom design using the LM26420-Q1 with the WEBENCH® Power Designer
  • Qualified for automotive applications
  • AEC Q100-qualified with the following results:
    • Device temperature grade 0 (Q0): –40°C to +150°C ambient operating temperature
    • Device temperature grade 1 (Q1): –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Compliant with CISPR25 class 5 conducted emissions
  • Input voltage range of 3 V to 5.5 V
  • Output voltage range of 0.8 V to 4.5 V
  • 2-A Output current per regulator
  • Fixed 2.2-MHz switching frequency
  • 0.8 V, 1.5% Internal voltage reference
  • Internal soft start
  • Independent power good and precision enable for each output
  • Current mode, PWM operation
  • Thermal shutdown
  • Overvoltage protection
  • Start-up into prebiased output loads
  • Regulators are 180° out of phase
  • Create a custom design using the LM26420-Q1 with the WEBENCH® Power Designer

The LM26420-Q1 regulator is a monolithic, high-efficiency dual PWM step-down DC/DC converter. This device has the ability to drive two 2-A loads with an internal 75-mΩ PMOS top switch and an internal 50-mΩ NMOS bottom switch using state-of-the-art BICMOS technology results in the best power density available. The world-class control circuitry allow on times as low as 30 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimum output voltage of 0.8 V.

Although the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current. The LM26420-Q1 utilizes current-mode control and internal compensation to provide high performance regulation over a wide range of operating conditions.

Because its switching frequency is ensured to be greater than 2 MHz, the LM26420-Q1 can be used in automotive applications without causing interference in the AM frequency band.

The LM26420-Q1 regulator is a monolithic, high-efficiency dual PWM step-down DC/DC converter. This device has the ability to drive two 2-A loads with an internal 75-mΩ PMOS top switch and an internal 50-mΩ NMOS bottom switch using state-of-the-art BICMOS technology results in the best power density available. The world-class control circuitry allow on times as low as 30 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 5.5-V input operating range down to the minimum output voltage of 0.8 V.

Although the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low standby current. The LM26420-Q1 utilizes current-mode control and internal compensation to provide high performance regulation over a wide range of operating conditions.

Because its switching frequency is ensured to be greater than 2 MHz, the LM26420-Q1 can be used in automotive applications without causing interference in the AM frequency band.
filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
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기술 자료

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8개 모두 보기
유형 직함 날짜
* Data sheet LM26420-Q1 Dual 2-A, Automotive-Qualified, High-Efficiency Synchronous DC/DC Converter datasheet (Rev. B) PDF | HTML 2020/05/18
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
Functional safety information LM26420-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 2020/04/23
Test report Automotive Wide-VIN to Point-of-Load Power Supply Reference Design (Rev. A) 2020/03/26
Technical article Build a sub-20W CISPR25 Class 5 power design for automotive infotainment processor PDF | HTML 2017/05/02
Technical article Spread Spectrum: Headache tablet or vitamin pill? PDF | HTML 2015/05/18
EVM User's guide AN-1870 LM26420 Evaluation Board (Rev. B) 2013/04/24
Application note AN-1973 Benefits and Challenges of High-Frequency Regulators (Rev. A) 2013/04/23

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LM26420XMHEVAL — LM26420 2.2MHz, eTSSOP 동기식 벅 평가 보드

The LM26420 Evaluation board was designed to provide two 2A outputs, VOUT1 and VOUT2 . It is available in either the eTSSOP package option of the LM26420 for easier probing or the LLP version for evaluating the smaller package. The design emphasizes on the compactness of the LM26420 PCB layout and (...)

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LM26420XSQEVAL — LM26420 2.2MHz, LLP 동기식 벅 평가 보드

The LM26420 Evaluation board was designed to provide two 2A outputs, VOUT1 and VOUT2 . It is available in either the eTSSOP package option of the LM26420 for easier probing or the LLP version for evaluating the smaller package. The design emphasizes on the compactness of the LM26420 PCB layout and (...)

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

TPS92662AEVM6-104 — TPS92662A-Q1 6채널 매트릭스 평가 모듈

TPS92662AEVM6-104는 6채널 애플리케이션에 구성된 66개의 개별 제어 가능 LED로 구성되어 있습니다. 이 평가 모듈은 TPS92662A-Q1 LED 매트릭스 관리자 장치의 다기능성과 구성 가능성을 보여줍니다. 컴패니언 제어 PCB, 6CHAUTOECU-899 및 TPS92662AEVM 소프트웨어 패키지를 사용하여 완전히 제어 가능한 동적 전면 조명 시스템을 평가할 수 있습니다.
요청
레퍼런스 디자인

TIDA-00746 — 오토모티브 인포테인먼트 프로세서 전원을 위한 17W 시스템 레벨 전원 레퍼런스 디자인

TIDA-00746 is a 17W system-optimized SMPS design for automotive infotainment processor power. The design has been tested for and passed CISPR25 Class 5 conducted EMI  limits.  All buck converters used in this design is switching above AM band (>1.85MHz).

The design is divided into four major blocks:
  1. (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-050040 — 할로겐 교체를 위한 오토모티브 LED 헤드라이트 드라이버 모듈 레퍼런스 설계

This reference design showcases the TPS92682 and the TPS92520 as a fully self functional three-channel LED driver for headlight applications.  The design is intended to be a low-cost halogen headlight module replacement compatible with an automotive body control module.  The three LED (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP15023 — 프론트 엔드 회로 보호 기능을 갖춘 차량용 넓은 VIN-부하 지점 전원 공급 장치 레퍼런스 설계

This automotive point-of-load power supply reference design features complete front-end protection in a small overall solution size. The system can clamp fast high-voltage electrical transients and maintain operation through these events. It can also properly respond to a reverse battery polarity (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-050030 — 120W 2상 매트릭스 호환 차량용 헤드라이트 ECU 레퍼런스 설계

This reference design details a headlight ECU using an interleaved boost in voltage regulation mode feeding four synchronous buck channels. This design is also capable of matrix headlight control and is mounted to a heatsink and enclosure to emulate an automotive headlight ECU. The TPS92682-Q1 is (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01524 — 오토모티브 고효율을 전원 프론트 엔드 및 다중 단계 프로세서 전원 공급 장치 레퍼런스 설계

This processor supply reference design is an automotive power solution for use in highperformance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01492 — 통합 전원 프론트 엔드 및 멀티 페이즈 프로세서 공급 오토모티브 레퍼런스 설계

This processor supply reference design is an automotive power solution for use in high performance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00804 — 차량용 i.MX6 쿼드 코어 프로세서 전원 레퍼런스 디자인

The TIDA-00804 reference design is a low-cost discrete power solution for the i.MX6Q quad core application processor. All the DCDC regulators operate at frequencies above the AM radio broadcast band to avoid interference with the radio and to provide a small solution size due to smaller filter (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP10652 — 차량에 필요한 모든 보호 기능을 갖춘 30W ADAS 시스템을 위한 시스템 수준 레퍼런스 디자인

PMP10652 is a System optimized (CISPR 25 Class 3) 30W design for Surround View ADAS system.

The design has various protections such as Load dump through TVS (ISO pulse testing), Reverse Voltage (Innovative Smart diode with very low Iq), Battery Disconnect Switch with OVP protection (PFET) and is EMI (...)

Test report: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 20 Ultra Librarian
WQFN (RUM) 16 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

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