首頁 電源管理 AC/DC 和 DC/DC 轉換器 (整合式 FET)
首頁
電源管理
AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM5169

現行

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

立即訂購
產品規格表

LM5169

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Flybuck Type Converter Iout (max) (A) 0.65 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) (A) 0.00001
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Flybuck Type Converter Iout (max) (A) 0.65 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) (A) 0.00001
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • 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 industrial power supplies and battery packs
    • 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, LM5163, LM5017, and 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
  • 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 industrial power supplies and battery packs
    • 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, LM5163, LM5017, and 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 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 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 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 delivers up to 0.65-A of output current and the LM5168 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 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 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 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 delivers up to 0.65-A of output current and the LM5168 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 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.
open-in-new 尋找其它 AC/DC 和 DC/DC 轉換器 (整合式 FET)
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 4
類型 標題 日期
* Data sheet LM5169, LM5168 0.65-A/0.3-A, 120-V, Step-Down Converter with Fly-Buck Converter Capability datasheet (Rev. A) PDF | HTML 2022年 7月 18日
Application note Inverting Buck-Boost Application for the LM5168 PDF | HTML 2023年 2月 24日
Functional safety information LM5168 and LM5169 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2022年 9月 1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

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

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
計算工具

SNVR520 — LM5169 Quick Start Calculator

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 6-V 至 120-V 大範圍 VIN、650-mA DC/DC 轉換器
下載
封裝 引腳 下載
HSOIC (DDA) 8 檢視選項
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片