具有超低 IQ 和集成有源 EMI 滤波器的 42V 同步降压直流/直流控制器

LM25149 是一款 42V 同步降压直流/直流控制器，适合高电流单输出应用。请参阅勘误表。该器件使用峰值电流模式控制架构，可轻松实现环路补偿、快速瞬态响应和出色的负载和线路调节性能。LM25149 可设置为以交错模式（并联输出）运行，可实现精确的电流共享，适合高电流应用。LM25149 可在低至 3.5V 的输入电压和接近 100% 的占空比（如果需要）下运行。\n\nLM25149 有两个独特的 EMI 降低特性：有源 EMI 滤波器和双随机扩频 (DRSS)。有源 EMI 滤波器可感测直流输入总线上的任何噪声或纹波电压，并注入异相消除信号以降低噪声或纹波电压。DRSS 将低频三 • 两个集成式 EMI 缓解机制 \n• 双随机扩频 (DRSS)，可提高低频和高频频带上的 EMI 性能\n• 减小了 50% 的外部差分模式滤波器大小并降低了系统成本\n• 多功能同步降压直流/直流控制器 \n• 1% 精度、3.3V/5V/12V 固定电压或 0.8V 至 36V 可调输出电压\n• 关断模式电流：2.2µA\n• 开关频率范围为 100kHz 至 2.2MHz \n• 固有保护特性，可实现稳健的设计 \n• 使能和 PGOOD 功能\n• 内部或外部环路补偿\n• 使用 LM25149 并借助 WEBENCH Power Designer 创建定制设计;

TI

德州仪器

LM5148-Q1 80-V, Automotive, Synchronous, Buck DC/DC Controller with Ultra-Low IQ and Dual Random Spread Spectrum

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to +125°C ambient operating temperature • Functional Safety-Capable – Documentation available to aid functional safety system design • Integrated EMI mitigation – Selectable dual random spread

文件：6.0505 Mbytes 页数：67 Pages

TI

德州仪器

LM25148-Q1 42-V, Automotive, Synchronous, Buck DC/DC Controller with Ultra-Low IQ and Dual Random Spread Spectrum

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to +125°C ambient operating temperature • Functional Safety-Capable – Documentation available to aid functional safety system design • Integrated EMI mitigation – Selectable dual random spread

文件：5.58512 Mbytes 页数：66 Pages

TI

德州仪器

LM5137F-Q1 Automotive, 4V to 80V, 100% Duty Cycle Capable, Dual-Channel Synchronous Buck Controller Family for Functional Safety Applications

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to 125°C ambient operating temperature • Functional Safety-Compliant targeted – Developed for functional safety applications • Three orderable part numbers for Capable, ASIL B, and ASIL D option

文件：1.31761 Mbytes 页数：14 Pages

TI

德州仪器

LM25148-Q1 42-V, Automotive, Synchronous, Buck DC/DC Controller with Ultra-Low IQ and Dual Random Spread Spectrum

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to +125°C ambient operating temperature • Functional Safety-Capable – Documentation available to aid functional safety system design • Integrated EMI mitigation – Selectable dual random spread

文件：5.5858 Mbytes 页数：66 Pages

TI

德州仪器

LM25139-Q1 Automotive, 42V, Synchronous Buck DC/DC Controller With Dual Random Spread Spectrum for Advanced EMI Mitigation

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to 125°C ambient operating temperature • Versatile synchronous buck DC/DC controller – Wide input voltage range of 4V to 42V – Fixed 3.3V, 5V or adjustable output voltage from 0.8V to 36V – –40

文件：3.30022 Mbytes 页数：60 Pages

TI

德州仪器

LM25137-Q1 Automotive, 4V to 42V, 100% Duty Cycle Capable, Dual-Channel, Synchronous Buck Controller

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to 125°C ambient operating temperature • Functional Safety-Capable – Documentation available to aid functional safety system design • Functional Safety-Compliant options – ASIL B and ASIL D – a

文件：3.59186 Mbytes 页数：71 Pages

TI

德州仪器

LM25137F-Q1 Automotive, 4V to 42V, 100% Duty Cycle Capable, Dual-Channel, Synchronous Buck DC/DC Controller Family for Functional Safety Applications

1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to 125°C ambient operating temperature • Functional Safety-Compliant – Developed for functional safety applications • Three orderable part numbers for Capable, ASIL B, and ASIL D options – Docu

文件：1.19929 Mbytes 页数：16 Pages

TI

德州仪器

LM25149-Q1 42-V Automotive Synchronous Buck DC/DC Controller with Ultra-Low IQ and Integrated Active EMI Filter

文件：4.00276 Mbytes 页数：51 Pages

TI

德州仪器

LM25148-Q1 42-V Automotive Synchronous Buck DC/DC Controller with Ultra-Low IQ and Dual Random Spread Spectrum

文件：5.13143 Mbytes 页数：53 Pages

TI

德州仪器