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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM5168-Q1

現行

具有 Fly-Buck™ 功能的車用 6-V 至 120-V 大範圍 VIN、300-mA DC-DC 轉換器

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產品規格表

LM5168-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 TI functional safety category Functional Safety-Capable Topology Buck, Flybuck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 6 Vin (max) (V) 120 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 90 Iq (typ) (µA) 10 Duty cycle (max) (%) 99
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Flybuck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 6 Vin (max) (V) 120 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 90 Iq (typ) (µA) 10 Duty cycle (max) (%) 99
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • Designed for reliability in rugged applications
    • Wide input voltage range of 6 V to 120 V
    • Junction temperature range: –40°C to +150°C
    • Fixed 3-ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Suited for scalable automotive HEV/EV power supplies
    • Low minimum on and off times of 50 ns
    • Adjustable switching frequency up to 1 MHz
    • Diode emulation for high light-load efficiency
    • Auto mode with low-quiescent current (< 10 µA)
    • FPWM for fly-buck converter capability
    • 3-µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164-Q1, LM5163-Q1, LM5017, LM5013-Q1and LM34927
  • Integration reduces solution size and cost
    • COT mode control architecture
    • Integrated 1.9-Ω NFET buck switch
    • Integrated 0.71-Ω NFET synchronous rectifier
    • 1.2-V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • SOIC PowerPAD™ integrated circuit package
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • Designed for reliability in rugged applications
    • Wide input voltage range of 6 V to 120 V
    • Junction temperature range: –40°C to +150°C
    • Fixed 3-ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Suited for scalable automotive HEV/EV power supplies
    • Low minimum on and off times of 50 ns
    • Adjustable switching frequency up to 1 MHz
    • Diode emulation for high light-load efficiency
    • Auto mode with low-quiescent current (< 10 µA)
    • FPWM for fly-buck converter capability
    • 3-µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164-Q1, LM5163-Q1, LM5017, LM5013-Q1and LM34927
  • Integration reduces solution size and cost
    • COT mode control architecture
    • Integrated 1.9-Ω NFET buck switch
    • Integrated 0.71-Ω NFET synchronous rectifier
    • 1.2-V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • SOIC PowerPAD™ integrated circuit package

The LM5169 -Q1 and LM5168 -Q1 synchronous buck converters are designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM516x -Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for wide input supply range industrial and high cell count battery pack applications.

With integrated high-side and low-side power MOSFETs, the LM5169 -Q1 delivers up to 0.65-A of output current and the LM5168 -Q1 delivers up to 0.3-A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x -Q1 is available in FPWM or auto mode versions. FPWM mode provides forced CCM operation across the entire load range supporting isolated fly-buck converter applications. Auto mode enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.

The LM5169 -Q1 and LM5168 -Q1 synchronous buck converters are designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM516x -Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for wide input supply range industrial and high cell count battery pack applications.

With integrated high-side and low-side power MOSFETs, the LM5169 -Q1 delivers up to 0.65-A of output current and the LM5168 -Q1 delivers up to 0.3-A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x -Q1 is available in FPWM or auto mode versions. FPWM mode provides forced CCM operation across the entire load range supporting isolated fly-buck converter applications. Auto mode enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.
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LM5169-Q1 現行 具有 Fly-Buck™ 功能的車用 6-V 至 120-V 大範圍 VIN、650-mA DC-DC 轉換器 Pin-to-pin 600-mA version.

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類型 標題 日期
* Data sheet LM516x-Q1 0.65/0.3-A, 120-V Step-Down Converter w/ Fly-Buck Converter Capability datasheet (Rev. A) 2022年 9月 8日
Product overview Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications (Rev. A) PDF | HTML 2024年 8月 20日
Application note Inverting Buck-Boost Application for the LM5168 PDF | HTML 2023年 2月 24日
Functional safety information LM516x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2022年 9月 1日
User guide LM5168FEVM EVM User's Guide PDF | HTML 2021年 11月 18日

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LM5168FEVM 評估模組 (EVM) 是完全組裝且經過測試的電路，適用於評估 LM5168，而這是一款採用同步整流的 115-V DC/DC Fly-Buck 穩壓器，可在小型元件封裝中實現高轉換效率。EVM 可在 20 V 至 115 V (最大 120-V) 的廣泛輸入電壓範圍內運作，並在高達 0.25 A 下以 750-kHz 切換頻率提供調節的 10-V 輸出。透過返馳拓撲提供額外的 10-V 浮動輸出。輸出電壓的設定點準確度高於 1.5%，並可使用外部電阻分壓器進行調節。此模組設計採用 LM5168-Q1 (...)
使用指南: PDF | HTML
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LM5168PEVM — LM5168P 115-V DC/DC 降壓穩壓器評估模組

LM5168P 評估模組 (EVM) 是採用同步整流的 115-V DC/DC 降壓穩壓器，可在較小型元件封裝中實現高轉換效率。EVM 可在 20 V 至 115 V (最大 120 V) 的廣泛輸入電壓範圍內運作，並在高達 0.3 A 下以 500 kHz 切換頻率提供調節的 12 V 輸出。輸出電壓的設定點準確度高於 1.5%，並可使用外部電阻分壓器進行調節。此模組設計採用 LM5168P 同步降壓轉換器，具備廣泛輸入電壓範圍、廣泛工作週期範圍、整合式高壓側與低壓側電源 MOSFET、先進過電流防護與精密啟用。

使用指南: PDF | HTML
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模擬型號

LM5168F PSpice Unencrypted Transient Model

SNVMCA0.ZIP (262 KB) - PSpice Model
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計算工具

SNVR520 — LM5169 Quick Start Calculator

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產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
LM5168 — 具有 Fly-Buck™ 功能的 6-V 至 120-V 大範圍 VIN、300-mA DC-DC 轉換器 LM5168-Q1 — 具有 Fly-Buck™ 功能的車用 6-V 至 120-V 大範圍 VIN、300-mA DC-DC 轉換器 LM5169 — 具有 Fly-Buck™ 功能的 6V 至 120V 寬 VIN、650-mA DC/DC 轉換器
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