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AC/DC & DC/DC converters (integrated FET)

LM63615-Q1

現行

具展頻功能的 3.5V 至 36V、1.5A 降壓轉換器

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產品規格表

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LMR43620-Q1 現行 具低 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

LM63615-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 1.5 Vin (min) (V) 3.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 24 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000023
Iout (max) (A) 1.5 Vin (min) (V) 3.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2200 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 24 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000023
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: 3.5 V to 36 V
    • Short 50-ns minimum on time
    • Good EMI performance Pseudo-random spread spectrum Compatible with CISPR 25
    • 23-µA low operating quiescent current
    • –40°C to +150°C junction temperature range
  • High design flexibility
    • Pin selectable VOUT: 3.3 V, 5 V, adjustable 1 V to 20 V
    • Pin compatible with the LM63610 and LM63635 (1 A, 3.25 A)
    • Pin selectable frequency: 400 kHz, 2.1 MHz, adjustable 250 kHz to 2200 kHz
    • Pin selectable FPWM, auto, sync modes
    • TSSOP: thermally enhanced package
    • WSON: for space-constrained applications
  • Small solution size
    • As small as 10 mm × 10 mm for 2.5 A, 2.2 MHz with WSON package
    • Highly integrated solution
    • 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: 3.5 V to 36 V
    • Short 50-ns minimum on time
    • Good EMI performance Pseudo-random spread spectrum Compatible with CISPR 25
    • 23-µA low operating quiescent current
    • –40°C to +150°C junction temperature range
  • High design flexibility
    • Pin selectable VOUT: 3.3 V, 5 V, adjustable 1 V to 20 V
    • Pin compatible with the LM63610 and LM63635 (1 A, 3.25 A)
    • Pin selectable frequency: 400 kHz, 2.1 MHz, adjustable 250 kHz to 2200 kHz
    • Pin selectable FPWM, auto, sync modes
    • TSSOP: thermally enhanced package
    • WSON: for space-constrained applications
  • Small solution size
    • As small as 10 mm × 10 mm for 2.5 A, 2.2 MHz with WSON package
    • Highly integrated solution
    • 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 1.5-A or 2.5-A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution 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™ , and the WSON 12-pin power package.

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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 1.5-A or 2.5-A of load current from an input of up to 36 V. The converter has high light load efficiency and output accuracy in a small solution 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™ , and the WSON 12-pin power package.

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類型 標題 日期
* Data sheet LM636x5-Q1 3.5-V to 36-V, 1.5-A, and 2.5-A Automotive Step-down Voltage Converter datasheet (Rev. G) PDF | HTML 2022年 9月 2日
Functional safety information LM636x5-Q1 Functional Safety FIT Rate, FMD, and Pin FMA (Rev. A) PDF | HTML 2024年 3月 25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
EVM User's guide LM63615DRREVM EVM User's Guide PDF | HTML 2020年 7月 24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
Functional safety information LM636xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. E) PDF | HTML 2019年 12月 23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

The LM63615QDRREVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM63625-Q1 synchronous step-down converter.
使用指南: PDF | HTML
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模擬型號

LM63615-Q1 PSpice Transient Model

SNVMBR6.ZIP (102 KB) - PSpice Model
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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 & DC/DC converters (integrated FET)
LM63610-Q1 — 具展頻功能的 3.5-V 至 36-V、1.0-A 降壓電壓轉換器 LM63615-Q1 — 具展頻功能的 3.5V 至 36V、1.5A 降壓轉換器 LM63625-Q1 — 具展頻功能的 3.5V 至 36V、2.5A 降壓轉換器 LM63635-Q1 — 具展頻功能的 3.5-V 至 32-V、3.25-A 降壓轉換器
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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

This reference design provides the system rails for automotive HUD, center information display, cluster display, or other automotive displays. A 3.3-V bus is generated by an off-battery buck converter. A boost converter provides 3.3-V to 5-V conversion and a buck provides 1.8 V from the 3.3-V (...)
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

This reference design is focused on the power tree for an automotive infotainment display unit covering various power supply rails including two off-battery converters providing 5.0-V and 3.3-V, and intermediary system rails of 1.8-V and 1.1-V. The test results demonstrate high efficiency, low (...)
Test report: PDF
電路圖: PDF
封裝 引腳 下載
HTSSOP (PWP) 16 檢視選項
WSON (DRR) 12 檢視選項
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