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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM53625-Q1

現行

2.5-A、36-V 同步、2.1-MHz、車用降壓 DC-DC 轉換器

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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產品不同
LMQ66430-Q1 現行 具 1.5-µA IQ 的汽車 36V、3-A、低 EMI 同步降壓轉換器 Smaller footprint, lower EMI with dual-random spread spectrum and lower IQ.
LMR33630AP-Q1 現行 汽車 3.8-V 至 36-V、3-A 同步降壓轉換器 Lower output current

LM53625-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) 2.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 1850 Switching frequency (max) (kHz) 2350 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 Control mode current mode Vout (min) (V) 3.2 Vout (max) (V) 10 Iq (typ) (µA) 18 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 1850 Switching frequency (max) (kHz) 2350 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 Control mode current mode Vout (min) (V) 3.2 Vout (max) (V) 10 Iq (typ) (µA) 18 Duty cycle (max) (%) 98
VQFN-HR (RNL) 22 20 mm² 5 x 4
  • AEC-Q100 automotive qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM classification level 2
    • Device CDM classification level C6
  • –40°C to +150°C junction temperature range
  • 15-µA quiescent urrent at no load (typical) with 3.3-V output
  • 5.0-mm × 4.0-mm VQFN package with or without wettable flanks and 0.6-mm VIN spacing
  • Low EMI and switch noise
  • Spread spectrum option
  • External frequency synchronization
  • RESET output with internal filter and 3-ms release timer
  • Pin-selectable forced PWM mode
  • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
  • 0.6-V dropout at 3.5 A at 105°C TA
  • ±1% output voltage tolerance (–40°C to 125°C TJ)
  • Available with fixed 5-V, 3.3-V or adjustable output
  • AEC-Q100 automotive qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM classification level 2
    • Device CDM classification level C6
  • –40°C to +150°C junction temperature range
  • 15-µA quiescent urrent at no load (typical) with 3.3-V output
  • 5.0-mm × 4.0-mm VQFN package with or without wettable flanks and 0.6-mm VIN spacing
  • Low EMI and switch noise
  • Spread spectrum option
  • External frequency synchronization
  • RESET output with internal filter and 3-ms release timer
  • Pin-selectable forced PWM mode
  • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
  • 0.6-V dropout at 3.5 A at 105°C TA
  • ±1% output voltage tolerance (–40°C to 125°C TJ)
  • Available with fixed 5-V, 3.3-V or adjustable output

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). 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. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). 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. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.
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類型 標題 日期
* Data sheet LM53625/35-Q1, 2.5-A or 3.5-A, 36-V Synchronous, 2.1-MHz, Step-Down DC-DC Converter datasheet (Rev. B) PDF | HTML 2021年 7月 29日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8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
Design guide Automated Parking System Reference Design Using 77-GHz mmWave Sensor 2019年 1月 24日
Technical article How a DC/DC converter package and pinout design can enhance automotive EMI perform PDF | HTML 2018年 9月 4日
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 2017年 9月 30日
Technical article Discrete SBCs: versatile and scalable solutions for any application PDF | HTML 2017年 7月 27日
Technical article What to consider when designing an automotive power supply PDF | HTML 2016年 6月 27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

DS90UB9702-Q1EVM — DS90UB9702-Q1 評估模組

DS90UB9702-Q1EVM 評估模組 (EVM) 是一款功能板設計，用於評估 DS90UB9702-Q1 FPD-Link IV 解串列集線器。DS90UB9702-Q1 是一款多功能解串器，能夠使用 FPD-Link III 和 FPD-Link IV 串聯器從多達四個獨立視訊來源接收數據。與 DS90UB971-Q1 串聯器配對時，DS90UB9702-Q1 可以接收來自 8MP+ 成像儀的高色深數據。它具有兩個獨立的 MIPI DPHY CSI-2 輸出埠和一個複製 CSI-2 埠，每個埠有四個可用通道，每個通道支援最高 2.5Gbps 的速度。此裝置也支援 4x CML (...)
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開發板

LM536253QEVM — LM536253-Q1 2.5A 3.3V 固定輸出寬輸入電壓同步 2.1 MHz 車用降壓轉換器 EVM

This EVM demonstrates the capabilities of the LM536253 automotive integrated buck converter. The EVM has an EMI filter on the back side that assists with noise reduction. The user can choose to bypass that EMI filter using  VIN1/GND1 posts . The EVM operates from an 3.5V to 36V input (up to (...)
使用指南: PDF
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開發板

MMWAVEICBOOST — mmWave 感測器載波卡平臺

The MMWAVEICBOOST carrier card expands capabilities of select 60 GHz mmWave evaluation modules. This board provides advanced software developement, debug features such as trace and single step via TI’s Code Composers compatible debuggers. On-board Launchpad interface enables pairing with (...)

使用指南: PDF | HTML
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模擬型號

LM536253-Q1 PSpice Transient Model

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LM536253-Q1 Unencrypted PSpice Transient Model

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LM536255-Q1 PSpice Transient Model

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LM536255-Q1 Unencrypted PSpice Transient Model

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LM53625A-Q1 PSpice Transient Model

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LM53625A-Q1 Unencrypted PSpice Transient Model

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參考設計

TIDA-01425 — 具有乙太網路和 CAN 的車用獨立閘道參考設計

The TIDA-01425 is a subsystem reference design for automotive gateways focused on increasing bandwidth and processing power in gateway applications. The design implements Ethernet physical layer transceivers (PHYs) for increased bandwidth along with an automotive processor for greater processing (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-020011 — 車用 mmWave 雷達手勢控制參考設計

This reference design utilizes mmWave Radar and a full automotive power design to provide a sleek, simple solution to capture hand gestures and improve the experience of the driver. The evolution of the automobile has led to the desire for simpler and easier interaction with the ever increasing (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01570 — 具有物件資料輸出的車用 77-GHz 雷達模組參考設計，

TIDA-01570 is a reference design for a 76- to 81-GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar analog front end (AFE), processors and CAN-FD transceiver. After processing, object data is provided over the included N-FD (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-020004 — 可透過雙 CAN FD 進行物件資料輸出的汽車 RFCMOS 77GHz 雷達模組參考設計

This reference design is a solution for a 76 to 81 GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar AFE, processors and CAN FD transceiver. All of these functions are included in a small form factor PCB suitable for front (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP30548 — 小型車用前端 16-W 電源參考設計

This reference design is an automotive front-end power supply able to provide 16 W for the 12-V car battery. The first stage is a pre-boost LM5150-Q1 to maintain a stable, mid-rail voltage of 8.5 V during cold-crank operation. Two downstream buck converters are able to handle jump start (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-010011 — 用於保護繼電器處理器模組的高效電源供應架構參考設計

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Design guide: PDF
電路圖: PDF
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