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AC/DC & DC/DC converters (integrated FET)

LM5164-Q1

現行

具有超低 IQ 的 6V 至 100V 輸入、1A 同步 DC-DC 轉換器

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產品規格表

LM5164-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 100 Topology Buck Type Converter Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 90 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00001
Iout (max) (A) 1 Vin (min) (V) 6 Vin (max) (V) 100 Topology Buck Type Converter Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 90 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00001
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 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
  • Suited for scalable automotive power supplies
    • 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
  • Create a custom regulator design using WEBENCH power designer
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C, ambient temperature range
  • 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
  • Suited for scalable automotive power supplies
    • 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
  • Create a custom regulator design using WEBENCH power designer

The LM5164-Q1 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-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.

With integrated high-side and low-side power MOSFETs, the LM5164-Q1 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-Q1 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-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.

The LM5164-Q1 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-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.

With integrated high-side and low-side power MOSFETs, the LM5164-Q1 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-Q1 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-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 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-Q1 100V Input, 1A Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet (Rev. B) PDF | HTML 2024年 4月 23日
Certificate LM5164-Q1EVM-041 EU RoHS Declaration of Conformity (DoC) (Rev. B) 2021年 3月 3日
Functional safety information LM5164-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2021年 1月 8日
White paper 簡化汽車及工業領域的功 能安全認證 2020年 6月 9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
Technical article Searching for the newest innovations in power? Find them at APEC PDF | HTML 2019年 2月 9日

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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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LM5164-Q1 TINA-TI Spice Transient Model

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