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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LMS3655-Q1

現行

5.5-A、36-V 同步 400-kHz 降壓轉換器

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
LM61460-Q1 現行 車用 3V 至 36V、6A、低雜訊同步降壓轉換器 Smaller solution size, higher efficiency and lower EMI.

LMS3655-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 5.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 500 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 15 Iq (typ) (µA) 15 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 5.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 500 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 15 Iq (typ) (µA) 15 Duty cycle (max) (%) 98
VQFN-HR (RNL) 22 20 mm² 5 x 4
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM classification level 2
    • Device CDM classification level C6
  • 96% Peak efficiency while converting 12 V to 5 V
  • Low EMI and minimized switch node ringing
  • 400-kHz (±10%) fixed switching frequency
  • –40°C to +150°C junction temperature range
  • External frequency synchronization
  • RESET output with internal filter and 3-ms release timer
  • Automatic light load mode for improved efficiency
  • Pin-selectable forced PWM mode
  • Built-In compensation, soft start, current limit, thermal shutdown, and UVLO
  • 0.35-V dropout with 3.5-A Load at 25°C (Typical)
  • 18-µA IQ_VIN: quiescent current at 3.3 VOUT and no load (typical)
  • Output voltage: 5 V, 3.3 V, and ADJ (1 V to 20 V)
  • ±1.5% reference voltage tolerance
  • Create a custom design using the LMS3655-Q1 with the WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM classification level 2
    • Device CDM classification level C6
  • 96% Peak efficiency while converting 12 V to 5 V
  • Low EMI and minimized switch node ringing
  • 400-kHz (±10%) fixed switching frequency
  • –40°C to +150°C junction temperature range
  • External frequency synchronization
  • RESET output with internal filter and 3-ms release timer
  • Automatic light load mode for improved efficiency
  • Pin-selectable forced PWM mode
  • Built-In compensation, soft start, current limit, thermal shutdown, and UVLO
  • 0.35-V dropout with 3.5-A Load at 25°C (Typical)
  • 18-µA IQ_VIN: quiescent current at 3.3 VOUT and no load (typical)
  • Output voltage: 5 V, 3.3 V, and ADJ (1 V to 20 V)
  • ±1.5% reference voltage tolerance
  • Create a custom design using the LMS3655-Q1 with the WEBENCH Power Designer

The LMS3635-Q1 and LMS3655-Q1 synchronous buck regulators are optimized for high performance applications, providing an output voltage of 3.3 V, 5 V, or an adjustable output of 1 V to 20 V. Seamless transition between PWM and PFM modes, along with a low quiescent current, ensures high efficiency and superior transient responses at all loads.

Advanced high-speed circuitry allows the LMS3655-Q1 to regulate an input of 24 V to an output of 3.3 V at a fixed frequency of 400 kHz while also enabling a continuous load current of 5.5 A. An innovative frequency foldback architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.5 V. The input voltage can range up to 36 V, with transient tolerance up to 42 V, easing input surge protection design.

An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space.

The LMS3635-Q1 and LMS3655-Q1 synchronous buck regulators are optimized for high performance applications, providing an output voltage of 3.3 V, 5 V, or an adjustable output of 1 V to 20 V. Seamless transition between PWM and PFM modes, along with a low quiescent current, ensures high efficiency and superior transient responses at all loads.

Advanced high-speed circuitry allows the LMS3655-Q1 to regulate an input of 24 V to an output of 3.3 V at a fixed frequency of 400 kHz while also enabling a continuous load current of 5.5 A. An innovative frequency foldback architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.5 V. The input voltage can range up to 36 V, with transient tolerance up to 42 V, easing input surge protection design.

An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space.
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類型 標題 日期
* Data sheet LMS3635-Q1 3.5-A, LMS3655-Q1 5.5-A, 36-V Synchronous, 400-kHz Step-Down Converter datasheet (Rev. C) PDF | HTML 2021年 8月 1日
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 2021年 4月 15日
White paper 透過節省時間和成本的創新技術 降低電源中的EMI 2020年 12月 4日
Technical article Optimizing flip-chip IC thermal performance in automotive designs PDF | HTML 2019年 12月 11日
Technical article How to meet European Commission ADAS requirements with TI DC/DC converters PDF | HTML 2019年 5月 9日
EVM User's guide LMS36x5-Q1 EVM User's Guide (Rev. A) 2018年 4月 13日
Technical article Designing USB into challenging automotive applications PDF | HTML 2018年 4月 4日
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 2017年 9月 30日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DS90UB971-Q1EVM — DS90UB971-Q1 評估模組

DS90UB971-Q1 評估模組 (EVM) 是一款功能板設計，用於評估 DS90UB971-Q1 FPD-Link IV 串聯器。DS90UB971-Q1 串聯器是第一代 FPD-Link IV 串聯器，旨在支援超高速感測器，包括 8MP+ 成像儀、衛星雷達、光達和飛時測距 (ToF) 感測器。晶片可提供 8.4Gbps 順向通道及超低延遲、52.5Mbps 雙向控制通道，並支援單一同軸 (PoC) 供電。DS90UB971-Q1 也支援使用 STP 電纜的順向通道和反向通道功能。DS90UB971-Q1 具備先進的數據保護和診斷功能，可支援 ADAS (...)
要求
開發板

LMS3655AQEVM — LMS3655-Q1 5.5A、5V 同步 400 kHz 降壓轉換器評估模組

The LMS3655AQEVM evaluation module (EVM) demonstrates the capabilities of the LMS3655 automotive integrated buck converter. For optimized EMI performance, the EVM has an EMI filter on the back side that assists with noise reduction. The user can choose to bypass that EMI filter (...)
使用指南: PDF
TI.com 無法提供
開發板

LMS3655MQEVM — LMS3655-Q1 5.5A、5V 同步 400 kHz 降壓轉換器評估模組

The LMS3655MQEVM evaluation module (EVM) demonstrates the capabilities of the LMS3655-Q1 automotive integrated buck converter. For optimized EMI performance, the LMS3655-Q1 has Spread Spectrum built in and the  EVM has an EMI filter on the back side that assists with noise reduction. The (...)
使用指南: PDF
TI.com 無法提供
開發板

LMS3655NQEVM — LMS3655-Q1 5.5A、3.3V 同步 400 kHz 降壓轉換器評估模組

The LMS3655NQEVM evaluation module (EVM) demonstrates the capabilities of the LMS3655-Q1 automotive integrated buck converter. For optimized EMI performance, the LMS3655-Q1 has Spread Spectrum built in and the  EVM has an EMI filter on the back side that assists with noise reduction. The (...)
使用指南: PDF
TI.com 無法提供
模擬型號

LMS36553-Q1 PSpice Transient Model

SNAM217.ZIP (105 KB) - PSpice Model
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模擬型號

LMS36553-Q1 Unencrypted PSpice Transient Model

SNAM218.ZIP (7 KB) - PSpice Model
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模擬型號

LMS36555-Q1 PSpice Transient Model

SNAM213.ZIP (108 KB) - PSpice Model
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模擬型號

LMS36555-Q1 Unencrypted PSpice Transient Model

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模擬型號

LMS3655A-Q1 PSpice Transient Model

SNAM216.ZIP (157 KB) - PSpice Model
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LMS3655A-Q1 Unencrypted PSpice Transient Model

SNAM215.ZIP (7 KB) - PSpice Model
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參考設計

TIDA-01388 — 具有完整前端保護的 CISPR 25 第 5 類額定雙車用 USB 充電器參考設計

TIDA-01388 is a 21 W dual automotive USB charger solution featuring complete front end protection with small 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 event and shut down (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01253 — CISPR 25 Class 4 車用雙路遠端和本機 USB 埠參考設計

This automotive media port design allows customers to accelerate media port systems by taking advantage of a complete reference design comprising analog AEC-100-qualified integrated circuits (ICs). The reference design is specified for automotive media ports that require both local-port and (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01524 — 車用高效率電源前端和多相位處理器供電參考設計

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
電路圖: PDF
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