LM26420
- 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
- High Switching Frequency: 2.2 MHz (LM26420X)
0.55 MHz (LM26420Y) - 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 With the WEBENCH® Power Designer
The LM26420 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 utilizes current-mode control and internal compensation to provide high performance regulation over a wide range of operating conditions.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM26420 Dual 2-A, High-Efficiency Synchronous DC/DC Converter datasheet (Rev. L) | PDF | HTML | 2018/04/13 |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021/04/08 | ||
| Technical article | Design an automotive cluster power supply | PDF | HTML | 2015/10/16 | |
| Technical article | How to overcome automotive front-end design challenges | PDF | HTML | 2015/09/10 | |
| Technical article | How to design a quiet and compact industrial power supply | PDF | HTML | 2015/07/21 | |
| Technical article | Spread Spectrum: Headache tablet or vitamin pill? | PDF | HTML | 2015/05/18 | |
| White paper | Power Management IC (PMIC) Guide for Automotive (Rev. A) | 2014/10/29 | ||
| 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.
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 (...)
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 (...)
PMP9458 — 오토모티브 클러스터 유닛을 위한 CISPR 25 클래스 5 정격 14W 멀티 출력 전원 공급 장치 레퍼런스 디자인
TIDM-HAHSCPTO — High Availability High Speed Counter(HSC) 및 Pulse Train Output(PTO) 레퍼런스 디자인
TIDA-01322 — 산업용 애플리케이션을 위한 LDO(저손실), 고전류 및 무바이어스 레일 레퍼런스 디자인
PMP9477 — 차량용 클러스터 유닛을 갖춘 프리 부스트가 장착된 CISPR 25 클래스 5 정격 멀티 출력 전원 공급 장치
PMP9492 — CISPR 25 후방 카메라, 오토모티브 ADAS 시스템용 클래스 5 멀티 출력 전원 공급 장치 레퍼런스 디자인
PMP9462 — 넓은 Vin 저잡음 삼중 출력 스텝다운 컨버터 레퍼런스 디자인
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 20 | 옵션 보기 |
| WQFN (RUM) | 16 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치