LMQ61460-Q1
- AEC-Q100 qualified for automotive
applications
- Temperature grade 1: –40°C to +150°C, TJ
- Functional Safety-Capable
- Mitigated interference and noise technology – architecture 2 (MINT
2)
- Meets CISPR25 class 5 standard
- 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 automotive
applications
- Supports 42V load dump
- 0.4V dropout with 4A load (typical)
- High efficiency power conversion at all loads
- 7µA no load current at 13.5VIN, 3.3 VOUT
- 90% PFM efficiency at 1mA, 13.5VIN, 5 VOUT
- External bias option for improved efficiency
- Pin compatible with:
- LM61460-Q1 (36V, 6 A)
The LMQ61460-Q1 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6A of output current is delivered over a wide input range of 3.0V to 36V; 42V tolerance supports load dump for durations of 400ms. The device implements soft recovery from dropout eliminating overshoot on the output.
The LMQ61460-Q1 is designed with mitigated interference and noise technology using architecture 2 features (MINT 2) to quickly and easily implement a low-EMI design. 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 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.
Auto-mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7µA (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, makes sure of exceptional efficiency across the entire load range.
The device is available in a 14-pin VQFN-HR package with wettable flanks. Electrical characteristics are specified over a junction temperature range of –40°C to +150°C. Find additional resources in the Related Documentation.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LMQ61460-Q1 Automotive 3V to 36V, 6A , Synchronous Step-Down Converter With Mitigated Interference and Noise Technology (MINT) 数据表 (Rev. D) | PDF | HTML | 2026-8-4 | ||
| 应用手册 | 如何对基于 PCM 的降压稳压器实施简单的恒流调节方案 | PDF | HTML | 英语版 | PDF | HTML | 2023-8-17 | |
| 白皮书 | 了解提高功率密度的利弊权衡和所需 技术 (Rev. C) | PDF | HTML | 英语版 (Rev.C) | PDF | HTML | 2023-4-27 | |
| 技术文章 | How buck regulators with integrated capacitors help lower EMI and save board space | PDF | HTML | 2022-3-16 | |||
| 更多文献资料 | Advanced Power-Converter Features for Reducing EMI | PDF | HTML | 2021-12-7 | |||
| 功能安全信息 | LMQ6x4x0-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA (Rev. A) | PDF | HTML | 2020-9-9 | |||
| 技术文章 | How device-level features and package options can help minimize EMI in automotive | PDF | HTML | 2020-8-21 | |||
| 功能安全信息 | 简化汽车和工业中的功能性安全认证 | 英语版 | 2020-6-9 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
LMQ61460EVM — 36V 输入、低 EMI、6A/5V 输出、同步 400kHz 降压转换器评估模块
SNVR488 — LMQ61460EVM-400K Design Files
SNVR493 — LMQ61460 Design Tool
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN-HR (RJR) | 14 | Ultra Librarian |
订购和质量
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