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

LM5165-Q1

現行

具有超低 IQ 的汽車、3V-65V、150mA 同步降壓轉換器

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LMR36503-Q1 現行 針對尺寸和輕負載效率最佳化的汽車 3-V 至 65-V、0.3-A 降壓轉換器 Smaller footprint, lower IQ and lower EMI.

LM5165-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 0.15 Vin (min) (V) 3 Vin (max) (V) 65 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Adjustable current limit, Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.23 Vout (max) (V) 65 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00001
Iout (max) (A) 0.15 Vin (min) (V) 3 Vin (max) (V) 65 Topology Buck Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Adjustable current limit, Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.23 Vout (max) (V) 65 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00001
VSON (DRC) 10 9 mm² 3 x 3 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Wide input voltage range of 3 V to 65 V
  • 10.5-µA no-load quiescent current
  • –40°C to 150°C junction temperature range
  • Fixed (3.3 V and 5 V) or adjustable output voltages
  • Meets EN55022 / CISPR 22 EMI standards
  • Integrated 2-Ω PMOS buck switch
    • Supports 100% duty cycle for low dropout
  • Integrated 1-Ω NMOS synchronous rectifier
    • Eliminates external rectifier diode
  • Programmable current limit setpoint (four levels)
  • Selectable PFM or COT mode operation
  • 1.223-V ±1% internal voltage reference
  • 900-µs internal or programmable soft start
  • Active slew rate control for low EMI
  • Monotonic start-up into prebiased output
  • No loop compensation or bootstrap components
  • Precision enable and input UVLO with hysteresis
  • Thermal shutdown protection with hysteresis
  • 10-pin VSON and VSSOP packages
  • Use TPSM265R1 module for faster time to market
  • 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
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Wide input voltage range of 3 V to 65 V
  • 10.5-µA no-load quiescent current
  • –40°C to 150°C junction temperature range
  • Fixed (3.3 V and 5 V) or adjustable output voltages
  • Meets EN55022 / CISPR 22 EMI standards
  • Integrated 2-Ω PMOS buck switch
    • Supports 100% duty cycle for low dropout
  • Integrated 1-Ω NMOS synchronous rectifier
    • Eliminates external rectifier diode
  • Programmable current limit setpoint (four levels)
  • Selectable PFM or COT mode operation
  • 1.223-V ±1% internal voltage reference
  • 900-µs internal or programmable soft start
  • Active slew rate control for low EMI
  • Monotonic start-up into prebiased output
  • No loop compensation or bootstrap components
  • Precision enable and input UVLO with hysteresis
  • Thermal shutdown protection with hysteresis
  • 10-pin VSON and VSSOP packages
  • Use TPSM265R1 module for faster time to market
  • Create a custom regulator design using WEBENCH Power Designer

The LM5165-Q1 device is a compact, easy-to-use, 3-V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 150-mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V or at an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for the target application. Pulse Frequency Modulation (PFM) mode is selected for optimal light-load efficiency or Constant On-Time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios.

The high-side P-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular output current requirement. Selectable and adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start using a capacitor. An open-drain PGOOD indicator can be used for sequencing, fault reporting, and output voltage monitoring. The LM5165-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 10-pin VSON and VSSOP packages with 0.5-mm pin pitch.

The LM5165-Q1 device is a compact, easy-to-use, 3-V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 150-mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V or at an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for the target application. Pulse Frequency Modulation (PFM) mode is selected for optimal light-load efficiency or Constant On-Time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios.

The high-side P-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular output current requirement. Selectable and adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start using a capacitor. An open-drain PGOOD indicator can be used for sequencing, fault reporting, and output voltage monitoring. The LM5165-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 10-pin VSON and VSSOP packages with 0.5-mm pin pitch.
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類型 標題 日期
* Data sheet LM5165-Q1 Automotive 3-V to 65-V Input, 150-mA Synchronous Buck Converter With Ultra-Low IQ datasheet (Rev. C) PDF | HTML 2022年 12月 16日
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019年 4月 10日
Application note Stability Analysis and Design of COT Type-3 Ripple Circuit 2019年 3月 20日
Application brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 2019年 2月 5日
Technical article HEV/EV battery management systems explained simply PDF | HTML 2018年 5月 7日
Analog Design Journal Low-EMI buck powers a multivariable sensor transmitter with BLE connectivity 2016年 10月 24日
Technical article Powering smart sensor transmitters in industrial applications PDF | HTML 2016年 5月 2日
Analog Design Journal Low-IQ synchronous buck converter enables intelligent field-sensor applications 2016年 4月 26日
Technical article DC/DC converter datasheets - Quiescent current demystified: Part two PDF | HTML 2016年 4月 11日
EVM User's guide LM5165EVM-HD-C50X EVM User's Guide 2016年 1月 27日
EVM User's guide LM5165EVM-HD-P50A EVM User's Guide 2015年 4月 21日
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014年 1月 22日
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013年 4月 24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

LM5165EVM-HD-C50X — LM5165 低 IQ 同步降壓轉換器高密度 COT 評估模組

The LM5165EVM-HD-C50X high density evaluation module (EVM) is designed to showcase the performance of the LM5165 high performance, exceptionally small, synchronous buck DC/DC buck converter with ultralow IQ. The module-style design is packaged in a miniature footprint with low component count. It (...)
使用指南: PDF
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開發板

LM5165EVM-HD-P50A — LM5165 低 IQ 同步降壓轉換器高密度 PFM 評估模組

The LM5165EVM-HD-P50A high density evaluation module (EVM) is designed to showcase the performance of the LM5165 high performance, exceptionally small, synchronous buck DC/DC buck converter with ultralow IQ. The module-style design is packaged in a miniature footprint with low component count. It (...)

使用指南: PDF
TI.com 無法提供
模擬型號

LM5165 PSpice Transient Model (Rev. B)

SNVMAH3B.ZIP (133 KB) - PSpice Model
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模擬型號

LM5165 Unencrypted PSpice Transient Model (Rev. B)

SNVMAK5B.ZIP (4 KB) - PSpice Model
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模擬型號

LM5165X PSpice Transient Model (Rev. A)

SNVMAJ5A.ZIP (95 KB) - PSpice Model
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模擬型號

LM5165X Unencrypted PSpice Transient Model (Rev. A)

SNVMAK3A.ZIP (4 KB) - PSpice Model
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模擬型號

LM5165Y PSpice Transient Model (Rev. A)

SNVMAJ6A.ZIP (90 KB) - PSpice Model
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模擬型號

LM5165Y Unencrypted PSpice Transient Model (Rev. A)

SNVMAK4A.ZIP (4 KB) - PSpice Model
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計算工具

LM5165DESIGN-CALC — LM5165 DC/DC 轉換器設計工具

Welcome to the LM5165 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck converter based on the LM5165 low IQ synchronous buck DC/DC regulator. As such, the user can expeditiously arrive at an optimized design to meet the (...)
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參考設計

PMP22270 — 可調整輸出電壓、200-W SEPIC 電源供應參考設計

This 200-W SEPIC converter reference design supplies a non-isolated adjustable 5-V to 200-V output voltage with a maximum output current of 4 A. Output voltage is set using a 0% to 100% duty-cycle, pulse-width-modulation (PWM) input.
Test report: PDF
電路圖: PDF
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VSON (DRC) 10 檢視選項
VSSOP (DGS) 10 檢視選項
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