首頁 電源管理 AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM63615-Q1

現行

具有展頻功能的 3.5-V 至 36-V、1.5-A 降壓電壓轉換器

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
LMR43620-Q1 現行 具有低 IQ 的車用 3-V 至 36-V、2-A、低 EMI 同步降壓穩壓器 1.5-uA Iq, 2-A current limit, 2-mm x2-mm QFN package

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 24 Vout (min) (V) 1 Features Enable, Fixed Output, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 23 Duty cycle (max) (%) 99 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 24 Vout (min) (V) 1 Features Enable, Fixed Output, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 23 Duty cycle (max) (%) 99 Type Converter
HTSSOP (PWP) 16 32 mm² 5 x 6.4 WSON (DRR) 12 9 mm² 3 x 3
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Supports automotive system requirements
    • Input voltage range: 3.5V to 36V
    • Short 50ns minimum on time
    • Good EMI performance Pseudo-random spread spectrum Compatible with CISPR 25
    • 23µA low operating quiescent current
    • –40°C to +150°C junction temperature range
  • High design flexibility
    • Pin selectable VOUT: 3.3V, 5V, adjustable 1V to 20V
    • Pin compatible with the LM63610 and LM63635 (1A, 3.25A)
    • Pin selectable frequency: 400kHz, 2.1MHz, adjustable 250kHz to 2200kHz
    • Pin selectable FPWM, auto, sync modes
    • TSSOP: thermally enhanced package
    • WSON: for space-constrained applications
  • Small design size
    • As small as 10mm × 10mm for 2.5A, 2.2MHz with WSON package
    • Highly integrated design
    • Low component count
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Supports automotive system requirements
    • Input voltage range: 3.5V to 36V
    • Short 50ns minimum on time
    • Good EMI performance Pseudo-random spread spectrum Compatible with CISPR 25
    • 23µA low operating quiescent current
    • –40°C to +150°C junction temperature range
  • High design flexibility
    • Pin selectable VOUT: 3.3V, 5V, adjustable 1V to 20V
    • Pin compatible with the LM63610 and LM63635 (1A, 3.25A)
    • Pin selectable frequency: 400kHz, 2.1MHz, adjustable 250kHz to 2200kHz
    • Pin selectable FPWM, auto, sync modes
    • TSSOP: thermally enhanced package
    • WSON: for space-constrained applications
  • Small design size
    • As small as 10mm × 10mm for 2.5A, 2.2MHz with WSON package
    • Highly integrated design
    • Low component count

The LM636x5-Q1 is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5-Q1 can drive up to 1.5A or 2.5A of load current from an input of up to 36V. The converter has high light load efficiency and output accuracy in a small design size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM636x5-Q1 is available in the HTSSOP 16-pin power package, with PowerPAD™ integrated circuit packageand the WSON 12-pin power package.

The LM636x5-Q1 is an easy-to-use, synchronous, step-down DC/DC converter designed for rugged automotive applications. The LM636x5-Q1 can drive up to 1.5A or 2.5A of load current from an input of up to 36V. The converter has high light load efficiency and output accuracy in a small design size. Features such as a RESET flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency while maintaining tight load regulation. Integration eliminates many external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LM636x5-Q1 is available in the HTSSOP 16-pin power package, with PowerPAD™ integrated circuit packageand the WSON 12-pin power package.

下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 10
類型 標題 日期
* Data sheet LM636x5-Q1 3.5V to 36V, 1.5A and 2.5A, Automotive, Step-Down Voltage Converter datasheet (Rev. I) 2025年 5月 16日
Functional safety information LM636x5C-Q1 Functional Safety FIT Rate, FMD, and Pin FMA (Rev. B) PDF | HTML 2025年 6月 19日
Functional safety information LM636xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. E) PDF | HTML 2024年 3月 18日
White paper Demystifying Input Supply Current in DC/DC Regulators:From Shutdown to Full Load (Rev. A) 2023年 6月 6日
Application note Inverting Buck-Boost Application for the LM63615-Q1 PDF | HTML 2023年 3月 12日
Application note Working with Inverting Buck-Boost Converters (Rev. B) PDF | HTML 2022年 10月 18日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note PCB Thermal Design Tips for Automotive DC/DC Converters PDF | HTML 2020年 11月 12日
Certificate LM63615QDRREVM EU Declaration of Conformity (DoC) (Rev. A) 2020年 9月 15日
White paper 簡化汽車及工業領域的功 能安全認證 2020年 6月 9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

LM63615QDRREVM — 具有展頻功能的 3.5-V 至 36-V、1.5-A 降壓轉換器的評估模組

LM63615QDRREVM 評估模組 (EVM) 是完全組裝且經過測試的電路,用於評估 LM63625-Q1 同步降壓轉換器。
使用指南: PDF | HTML
TI.com 無法提供
模擬型號

LM63615-Q1 PSpice Transient Model

SNVMBR6.ZIP (102 KB) - PSpice Model
計算工具

SNVC239 LM636x3Q Component Calculator

支援產品和硬體

支援產品和硬體

產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
LM63610-Q1 具展頻功能的 3.5V 至 36V、1.0A 降壓電壓轉換器 LM63615-Q1 具有展頻功能的 3.5-V 至 36-V、1.5-A 降壓電壓轉換器 LM63625-Q1 具有展頻功能的 3.5-V 至 36-V、2.5-A 降壓電壓轉換器 LM63635-Q1 具有展頻功能的車用、3.5V 至 36V、3.25A 降壓式電壓轉換器
參考設計

PMP22063 — 具備熱/冷車啟動功能的車用儀錶板與顯示器電源參考設計

此參考設計提供汽車 HUD、中央資訊顯示器、儀表板顯示器或其它汽車顯示器的系統軌。3.3-V 匯流排是由無電池降壓轉換器產生。升壓轉換器可提供 3.3-V 至 5-V 之轉換,降壓可從 3.3-V 軌提供 1.8 V。顯示面板、CAN 匯流排、微控制器 (MCU)、FPD-Link、觸控控制器和開關組,在此設計中都是可由電源軌驅動的範例。包括 EMI 濾波和反向電池保護。
Test report: PDF
電路圖: PDF
參考設計

PMP22030 — 適用於車載資訊娛樂系統顯示器的高效、低熱、符合 CISPR 25 5 類標準電源參考設計

此參考設計著重於汽車資訊娛樂顯示單元的電源樹,涵蓋各種電源供應軌,包括兩個提供 5.0-V 與 3.3-V 的無電池轉換器,以及 1.8-V 與 1.1-V 的中間系統軌。測試結果證明效率高、散熱低,符合 CISPR 25 第 5 級傳導式排放規範。 
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
WSON (DRR) 12 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片