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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM61495-Q1

現行

針對功率密度和低 EMI 進行最佳化的 10-A 車用降壓轉換器

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產品規格表

LM61495-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 10 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 5 Duty cycle (max) (%) 98 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 10 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34.2 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 5 Duty cycle (max) (%) 98 Type Converter
VQFN-HR (RPH) 16 15.75 mm² 4.5 x 3.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load
    • 5µA input current while unloaded in auto mode
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
    • ϴJA = 21.6°C/W, measured on LM61495RPHEVM
  • Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Input voltage range from 3V to 36V
  • RESET output with filter and delayed release
  • Designed for low EMI:
    • CISPR 25 class 5 compliant EVM
    • Pin-configurable spread spectrum
    • Adjustable SW node rise time
    • Above and below AM band operation: pin configurable 400kHz and 2.2MHz fixed or adjustable from 200kHz – 2.2MHz
    • Low EMI symmetrical pinout
    • Light load mode is pin-configurable for constant frequency or pulse frequency modulation (PFM)
  • High-efficiency design
    • 95% efficient for an 8A load
    • 5µA input current while unloaded in auto mode
    • < 1µA shutdown current (typical)
  • High power density
    • Built-in compensation, soft start, current limit, thermal shutdown, and UVLO
    • 4.5mm × 3.5mm wettable flank QFN package
    • ϴJA = 21.6°C/W, measured on LM61495RPHEVM
  • Pin-to-pin compatible with LM61480T-Q1 and LM61495T-Q1 for dual-side cooling providing enhanced thermal performance

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.

The LM6x4xx-Q1 buck regulator family are automotive-focused regulators providing either fixed or an adjustable output voltage which can be set from 1 V to 95% of expected input voltage. These regulators operate under a wide input voltage range of 3 to 36V and has transient tolerance up to 42 V.

The family is designed for low EMI. The device incorporates pin selectable spread spectrum, and an adjustable SW node rise time. Dual Random Spread Spectrum (DRSS) frequency hopping is set to ±4% (typical), drastically reducing peak emissions through a combination of triangular and pseudorandom modulation, and includes advanced techniques to reduce output voltage ripple caused by spread spectrum modulation.

An open-drain RESET output, with filtering and delayed release, gives a true indication of system status. In auto mode the device automatically transitions between Fixed frequency Pulse Width Modulation (FPWM) and Pulse Frequency Modulation (PFM) modes of operation, allowing an unloaded current consumption of only 5 µA (typical). Electrical characteristics are specified over a junction temperature range of –40°C to +150°C.
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類型 標題 日期
* Data sheet LM6x4xx-Q1 Pin-Compatible, 6A, 8A, 10A, Automotive Buck Converter Optimized for Power Density and Low EMI datasheet (Rev. E) PDF | HTML 2025年 10月 7日
Functional safety information LM62460-Q1, LM61480(T)-Q1, and LM61495(T)-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 2024年 12月 12日
Application note How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck PDF | HTML 2023年 8月 16日
Product overview Mobileye EyeQ6L – Semi Discrete Power Tree PDF | HTML 2022年 8月 5日
Application note Using the LM61460-Q1 and LM61495-Q1 in USB Type-C Applications PDF | HTML 2021年 12月 15日
More literature Advanced Power-Converter Features for Reducing EMI PDF | HTML 2021年 12月 7日
Application note Configuring LM62460 for Dual-Phase Operation PDF | HTML 2021年 8月 12日
EVM User's guide LM61495RPHEVM EVM User’s Guide (Rev. A) PDF | HTML 2021年 3月 23日
Technical article Lowering audible noise in automotive applications with TI’s DRSS technology PDF | HTML 2021年 3月 18日
Analog Design Journal The pros and cons of spread‐spectrum implementation methods in buck regulators 2021年 3月 18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 Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev 2020年 11月 18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

LM61495RPHEVM — LM61495-Q1 同步 10-A、400-kHz 降壓轉換器評估模組

LM61495RPHEVM 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LM61495-Q1 同步降壓轉換器。  LM61495-Q1 在小型解決方案尺寸中提供卓越的效率、低 IQ 和低 EMI。
使用指南: PDF | HTML
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模擬型號

LM61495-Q1 PSpice Transient Model (Rev. A)

SNVMC15A.ZIP (224 KB) - PSpice Model
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計算工具

SNVR498 — LM61495-Q1 Design Tool

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)
LM61480-Q1 — 針對功率密度和低 EMI 進行最佳化的車用 8A 降壓轉換器 LM61495-Q1 — 針對功率密度和低 EMI 進行最佳化的 10-A 車用降壓轉換器 LM62460-Q1 — 針對功率密度和低 EMI 進行最佳化的 6-A 車用降壓轉換器
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參考設計

PMP23241 — 具有可調整輸出的同步反相降壓升壓轉換器參考設計

此參考設計運用 LM61495-Q1 同步降壓穩壓器。此裝置配備內部頂部與底部場效電晶體 (FET)，並配置為同步反相降壓升壓轉換器，以提供 –7.5V 與 –12V 之間的可調式輸出，能從 9V 至 18V 輸入提供最大 4A 電流至負載。透過將類比電壓訊號提供至參考 GND 的 Vcntl_1 (TP4) 測試點來調整輸出電壓。0V 和 5V 之間的控制電壓對應於 –12V 和 –7.5V 之間的輸出電壓。
Test report: PDF
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VQFN-HR (RPH) 16 Ultra Librarian
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