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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM5164

現行

具超低 IQ 的 6V 至 100V 輸入、1A 同步降壓 DC-DC 轉換器

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產品規格表

LM5164

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 Type Converter Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 100 Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, 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 Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 100 Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, 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
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6V to 100V
    • 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
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 class 5 standard
  • Suited 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
    • 10.5µA no-load input quiescent current
    • 3µA shutdown quiescent current
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 0.725Ω NFET buck switch
    • Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power good indicator
    • 8-pin SOIC package with PowerPAD™
  • Create a custom regulator design using WEBENCH power designer
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6V to 100V
    • 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
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 class 5 standard
  • Suited 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
    • 10.5µA no-load input quiescent current
    • 3µA shutdown quiescent current
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 0.725Ω NFET buck switch
    • Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power good indicator
    • 8-pin SOIC package with PowerPAD™
  • Create a custom regulator design using WEBENCH power designer

The LM5164 synchronous buck converter is 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 solution cost. The LM5164 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 LM5164 delivers up to 1A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5164 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, innovative peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.The LM5164 is available in a thermally-enhanced, 8-pin SO PowerPAD™ package. The 1.27mm pin pitch provides adequate spacing for high-voltage applications.

The LM5164 is available in a thermally-enhanced, 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.

The LM5164 synchronous buck converter is 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 solution cost. The LM5164 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 LM5164 delivers up to 1A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5164 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, innovative peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.The LM5164 is available in a thermally-enhanced, 8-pin SO PowerPAD™ package. The 1.27mm pin pitch provides adequate spacing for high-voltage applications.

The LM5164 is available in a thermally-enhanced, 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.
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類型 標題 日期
* Data sheet LM5164 100V Input, 1A Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet (Rev. C) PDF | HTML 2024年 4月 23日
Technical article 為踏板供電：實現適用於電動自行車與電動機車且續航力更長 的 13S、48-v 鋰離子電池組 (Rev. A) PDF | HTML 2024年 5月 21日
Functional safety information LM5164 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022年 2月 3日
Technical article 3 big benefits of small cells PDF | HTML 2020年 5月 26日
White paper 以工業電池組為運輸替代方案提供電源 2020年 3月 17日
E-book E-book: An engineer’s guide to industrial robot designs 2020年 2月 12日
Technical article Fast and furious: designing longer-lasting 16S-17S Li-ion battery packs for e-moto PDF | HTML 2019年 11月 21日
White paper Small Cells, Big Impact: Designing Power Soutions for 5G Applications 2019年 6月 26日
EVM User's guide LM5164Q1-EVM User Guide (Rev. A) 2019年 4月 4日
Application note Stability Analysis and Design of COT Type-3 Ripple Circuit 2019年 3月 20日
Application note DC/DC Buck Converters With Ultra-Low IQ for Industrial Battery-Pack Applications 2019年 2月 20日
Application brief IC Package Features Lead to Higher Reliability in Automotive Systems 2019年 2月 20日
Application brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 2019年 2月 5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

LM5164-Q1EVM — 同步降壓轉換器評估模組

The LM5164-Q1 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM5164-Q1, 300-kHz synchronous step-down converter.  The LM5164-Q1EVM operates at very low quiescent current and delivers exceptional efficiency with minimum number of external components.
使用指南: PDF
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模擬型號

LM5164-Q1 PSpice Transient Model

SNVMBO8.ZIP (116 KB) - PSpice Model
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模擬型號

LM5164-Q1 TINA-TI Spice Transient Model

SNVMBV5.TSC (629 KB) - TINA-TI Spice Model
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模擬型號

LM5164-Q1 Unencrypted PSpice Transient Model

SNVMBP2.ZIP (5 KB) - PSpice Model
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計算工具

LM5163-LM5164DESIGN-CALC — LM5163 和 LM5164 控轉換器快速入門設計工具

Welcome to the LM5163 and LM5164 Quickstart Design Tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck converter based on the LM5163 and LM5164 low IQ synchronous buck DC/DC regulator. As such, the user can expeditiously arrive at an optimized (...)
使用指南: PDF
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設計工具

DRV3233-Q1-DESIGN — DRV3233-Q1-DESIGN documentation

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