LMQ61460
- Functional Safety-Capable
- Optimized for ultra-low EMI requirements
- Hotrod™ package minimizes switch node ringing
- Internal bypass capacitors reduce EMI
- Parallel input path minimizes parasitic inductance
- Spread spectrum reduces peak emissions
- Adjustable switch node rise time
- Designed for rugged applications
- Supports 42-V transient
- 0.4-V dropout with 4-A load (typical)
- High efficiency power conversion at all loads
- 7-µA no load current at 13.5 VIN, 3.3 VOUT
- 90% PFM efficiency at 1 mA, 13.5 VIN, 5 VOUT
- Low MOSFET ON resistance
- RDS_ON_HS = 41 mΩ (typical)
- RDS_ON_LS = 21 mΩ (typical)
- External bias option for improved efficiency
- Pin compatible with:
- LM61460 (36 V, 6 A)
- Use TPSM63606 module for faster time to market
The LMQ61460 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input range of 3.0 V to 36 V; tolerant of 42 V, easing input surge protection design. The device implements soft recovery from dropout eliminating overshoot on the output.
The device is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.
Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LMQ61460 3-V to 36-V, 6 A, Low EMI Synchronous Step-Down Converter datasheet (Rev. D) | PDF | HTML | 2022/06/28 |
Application note | How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck | PDF | HTML | 2023/08/16 | |
Technical article | How buck regulators with integrated capacitors help lower EMI and save board space | PDF | HTML | 2022/03/16 | |
Technical article | Powering medical imaging applications with DC/DC buck converters | PDF | HTML | 2020/11/24 | |
Functional safety information | LMQ6x4x0-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA (Rev. A) | PDF | HTML | 2020/09/09 | |
Certificate | LMQ61460EVM-400K EU Declaration of Conformity (DoC) | 2020/09/01 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LMQ61460EVM — 36V, 저 EMI 6A, 5V 동기, 400kHz, 스텝다운 컨버터 평가 모듈
SNVR493 — LMQ61460 Design Tool
지원되는 제품 및 하드웨어
제품
AC/DC 및 DC/DC 컨버터(통합 FET)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN-HR (RJR) | 14 | Ultra Librarian |
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