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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM5165

現行

具有超低 IQ 的 3V-65V、150mA 同步降壓轉換器

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現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
LMR36502 現行 具有 6μA IQ 的 3V 至 65V、150mA 超小型同步降壓轉換器 Newer device with smaller footprint, lower IQ and improved EMI mitigation features.

LM5165

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 0.15 Vin (min) (V) 3 Vin (max) (V) 65 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, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.23 Vout (max) (V) 65 Iq (typ) (µA) 10 Duty cycle (max) (%) 100
Rating Automotive Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 0.15 Vin (min) (V) 3 Vin (max) (V) 65 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, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.23 Vout (max) (V) 65 Iq (typ) (µA) 10 Duty cycle (max) (%) 100
VSON (DRC) 10 9 mm² 3 x 3
  • 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
  • Diode emulation mode and pulse skipping for ultra-high light-load efficiency performance
  • Monotonic start-up into prebiased output
  • No loop compensation or bootstrap components
  • Precision enable and input UVLO with hysteresis
  • Pin-to-pin compatible with the LM5166
  • Thermal shutdown protection with hysteresis
  • 10-pin, 3-mm × 3-mm VSON package
  • Use TPSM265R1 module for faster time to market
  • Create a custom regulator design using WEBENCH Power Designer
  • 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
  • Diode emulation mode and pulse skipping for ultra-high light-load efficiency performance
  • Monotonic start-up into prebiased output
  • No loop compensation or bootstrap components
  • Precision enable and input UVLO with hysteresis
  • Pin-to-pin compatible with the LM5166
  • Thermal shutdown protection with hysteresis
  • 10-pin, 3-mm × 3-mm VSON package
  • Use TPSM265R1 module for faster time to market
  • Create a custom regulator design using WEBENCH Power Designer

The LM5165 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 buck converter is available in a 10-pin, 3-mm × 3-mm, thermally- enhanced VSON-10 package with 0.5-mm pin pitch. The LM5165 and LM5165X is also available in the VSSOP-10 package.

The LM5165 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 buck converter is available in a 10-pin, 3-mm × 3-mm, thermally- enhanced VSON-10 package with 0.5-mm pin pitch. The LM5165 and LM5165X is also available in the VSSOP-10 package.
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類型 標題 日期
* Data sheet LM5165 3-V to 65-V Input, 150-mA Synchronous Buck Converter With Ultra-Low IQ datasheet (Rev. D) PDF | HTML 2022年 12月 16日
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021年 7月 26日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8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 brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 2019年 2月 5日
Technical article Use a low-quiescent-current switcher for high-voltage conversion PDF | HTML 2018年 8月 28日
Application note Selecting an Ideal Ripple Generation Network for Your COT Buck Converter (Rev. A) 2017年 6月 15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
TI.com 無法提供
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

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Design guide: PDF
電路圖: PDF
參考設計

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This LED lighting control reference design demonstrates a unique approach to drive and control a string of multiple high-power light-emitting diodes (LEDs). This reference design is targeted for industrial machine vision systems and is also suitable for other industrial or automotive lighting (...)
Design guide: PDF
電路圖: PDF
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Design guide: PDF
電路圖: PDF
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This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
電路圖: PDF
參考設計

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This Power over Ethernet (PoE) reference design supplies power and data over a single Ethernet cable to a connected LED lighting ballast. This reference design uses TI's TPS2372-4 PoE powered device (PD) interface, LM3409 buck controller, LM5165 buck converter, TPS62740 buck converter, (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01415 — 100W、高解析度、16 位元色彩可調、0.15% 可調光 RGBW LED 照明燈具參考設計

This reference design demonstrates the finest range of color control of individual RGBW LED strings with > 16 bits of PWM resolution while supporting the PWM modulation frequencies as high as 30 and 50 kHz. This reference design demonstrates the finest range of individual RGBW LED strings color (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01478 — 具有數位輸出和 DC/DC 的 IO-Link 參考設計

This reference design demonstrates the ability to have a high-density, IO-Link transceiver module, digital output (DO) (1) channel, and a DC-DC buck converter. With the DC-DC this module can power a wide array of external devices, such as microcontrollers (MCUs), sensors, displays, and more. (...)
Design guide: PDF
電路圖: PDF
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