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LM5169

現行

具有 Fly-Buck™ 功能的 6V 至 120V 寬 VIN、650-mA DC/DC 轉換器

產品詳細資料

Rating Catalog Topology Buck, Flybuck Iout (max) (A) 0.65 Vin (max) (V) 120 Vin (min) (V) 6 Vout (max) (V) 90 Vout (min) (V) 1.2 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) Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 10 Duty cycle (max) (%) 99 Type Converter
Rating Catalog Topology Buck, Flybuck Iout (max) (A) 0.65 Vin (max) (V) 120 Vin (min) (V) 6 Vout (max) (V) 90 Vout (min) (V) 1.2 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) Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 10 Duty cycle (max) (%) 99 Type Converter
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 WSON (NGU) 8 16 mm² 4 x 4
  • Functional Safety-Capable
  • Designed for reliability in rugged applications
    • Wide input voltage range of 6V to 120V absolute maximum
    • Junction temperature range: –40°C to +150°C
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Designed for scalable industrial power supplies and battery packs
    • Low minimum on and off times of 50ns
    • Adjustable switching frequency up to 1MHz
    • Diode emulation for high light-load efficiency
    • Auto mode with low quiescent current (< 10µA)
    • FPWM for Fly-Buck converter capability
    • 3µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164-Q1, LM5163-Q1, and LM5013-Q1
    • Similar pinout and functionality to LM5017 and LM34927.
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 1.9Ω NFET buck switch
    • Integrated 0.71Ω NFET synchronous rectifier
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • Package options: SOIC PowerPAD™-8 integrated circuit package or WSON-8 package
  • Functional Safety-Capable
  • Designed for reliability in rugged applications
    • Wide input voltage range of 6V to 120V absolute maximum
    • Junction temperature range: –40°C to +150°C
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Designed for scalable industrial power supplies and battery packs
    • Low minimum on and off times of 50ns
    • Adjustable switching frequency up to 1MHz
    • Diode emulation for high light-load efficiency
    • Auto mode with low quiescent current (< 10µA)
    • FPWM for Fly-Buck converter capability
    • 3µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164-Q1, LM5163-Q1, and LM5013-Q1
    • Similar pinout and functionality to LM5017 and LM34927.
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 1.9Ω NFET buck switch
    • Integrated 0.71Ω NFET synchronous rectifier
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • Package options: SOIC PowerPAD™-8 integrated circuit package or WSON-8 package

The LM5169 and LM5168 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 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM516x operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device 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 delivers up to 0.65A of output current and the LM5168 delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x 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 and LM5168 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 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM516x operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device 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 delivers up to 0.65A of output current and the LM5168 delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x 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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類型 標題 日期
* Data sheet LM516x, 0.65A/0.3A, 120V Absolute Maximum, Step-Down Converter With Fly-Buck Converter Capability datasheet (Rev. B) PDF | HTML 2024年 12月 16日
Functional safety information LM5168 and LM5169 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 2024年 11月 11日
Certificate LM5169PEVM EU RoHS Declaration of Conformity (DoC) 2024年 10月 31日
Certificate LM5169FEVM EU Declaration of Conformity (DoC) 2024年 8月 27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

設計與開發

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開發板

LM5168FEVM — LM5168 評估模組,115-V fly-buck 穩壓器

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
TI.com 無法提供
開發板

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
TI.com 無法提供
開發板

LM5169FEVM — LM5169F 評估模組

LM5169F 評估模組 (EVM) 是返馳穩壓器,利用 LM5169FNGUR 產生穩壓 10V 輸出,能夠以 750kHz 的切換頻率,在變壓器的一次側供應 300mA 負載。在變壓器的二次側提供 10V 反射輸出,最高可提供達 300mA。LM5169FNGUR 是具備廣泛輸入電壓範圍、整合式功率 MOSFET、過電流保護及精密啟用功能的同步降壓轉換器。

使用指南: PDF | HTML
TI.com 無法提供
開發板

LM5169PEVM — LM5169P 評估模組

LM5169P 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 的廣泛輸入電壓範圍內運作,並在高達 0.650 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 LM5169PNGUR 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
TI.com 無法提供
模擬型號

LM5169 PSpice Transient Model

SNVMCE6.ZIP (15528 KB) - PSpice Model
計算工具

SNVR520 LM5169 Quick Start Calculator

Quick Start Calculator for LM5169
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)
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
設計工具

LM5169-BUCK-FLY-BUCK-DESIGN-CALC LM5169 quick-start calculator for buck and Fly-Buck designs

LM5169 quick-start calculator for buck and Fly-Buck designs
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)
LM5169 具有 Fly-Buck™ 功能的 6V 至 120V 寬 VIN、650-mA DC/DC 轉換器
參考設計

PMP41130 — 1.2kW hard-switching, full bridge (HSFB) telecom power supply unit

The PMP41130 demonstrates a symmetrical hard- switching full-bridge DC-DC power converter with digital control using the UCD3138064, LMG3100, and LMG2175 devices. This Reference design includes required control functions for a hard-switched full bridge (HSFB) converter. PMP41130 accepts a DC input (...)
Test report: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HSOIC (DDA) 8 Ultra Librarian
WSON (NGU) 8 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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