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LM63615-Q1

現行

具展頻功能的 3.5V 至 36V、1.5A 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,但針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 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
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 Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm) WSON (DRR) 12 9 mm² (3 mm × 3 mm)
  • 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-Q1, LM63635-Q1(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-Q1, LM63635-Q1(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 designs 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 designs 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.

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設計與開發

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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
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模擬型號

LM63615-Q1 PSpice Transient Model

SNVMBR6.ZIP (102 KB) - PSpice 模型
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計算工具

SNVC239 — LM636x3Q Component Calculator

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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。 
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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。
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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

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