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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LMR43610-Q1

現行

具有低 IQ 的車用 3-V 至 36-V、1-A、低 EMI 同步降壓穩壓器

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產品規格表

LMR43610-Q1

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 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 32 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 99
Rating Automotive 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) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO Fixed, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 32 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 99
VQFN-HR (RPE) 9 4 mm² 2 x 2
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Greater than 85% efficiency at 1mA
    • 1.2µA total non-switching IQ at 13.5VIN, fixed 3.3VOUT
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Optimized for ultra-low EMI requirements
    • Spread spectrum reduces peak emissions
    • Meets CISPR25 Class 5 standard
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • FSW synchronization with MODE/SYNC pin
  • Designed for automotive applications
    • –40°C to +150°C junction temperature range
    • Supports 42V automotive load dump
    • Supports 3VIN for automotive cold crank
    • Adjustable up to 95% of VIN, 3.3V and 5V fixed VOUT options available
  • Designed for scalable power supplies
    • 200kHz to 2.2MHz (RT pin) adjustable FSW
    • Pin compatible with:
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Greater than 85% efficiency at 1mA
    • 1.2µA total non-switching IQ at 13.5VIN, fixed 3.3VOUT
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Optimized for ultra-low EMI requirements
    • Spread spectrum reduces peak emissions
    • Meets CISPR25 Class 5 standard
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • FSW synchronization with MODE/SYNC pin
  • Designed for automotive applications
    • –40°C to +150°C junction temperature range
    • Supports 42V automotive load dump
    • Supports 3VIN for automotive cold crank
    • Adjustable up to 95% of VIN, 3.3V and 5V fixed VOUT options available
  • Designed for scalable power supplies
    • 200kHz to 2.2MHz (RT pin) adjustable FSW
    • Pin compatible with:

The LMR436x0-Q1 is the industry smallest 36V, 2A, and 1A synchronous step-down DC/DC converters in a 2mm × 2mm HotRod package. This easy-to-use converter supports a wide input voltage range of 3.0V to 36V with transients up to 42V.

The LMR43620-Q1 is specifically designed to meet low standby power requirements for always on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of 1.5µA at 13.5VIN and high light load efficiency. A seamless transition between PWM and PFM modes along with very low MOSFET ON resistances provide exceptional efficiency across the entire load range.

The control architecture and feature set are designed for an ultra-small design size. The device uses peak current mode control to minimize output capacitance. The LMR436x0-Q1 minimizes input filter size by using dual random spread spectrum, a low-EMI HotRod package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency between 200kHz and 2.2MHz to avoid noise sensitive frequency bands.

The rich feature set of the LMR436x0-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

The LMR436x0-Q1 is the industry smallest 36V, 2A, and 1A synchronous step-down DC/DC converters in a 2mm × 2mm HotRod package. This easy-to-use converter supports a wide input voltage range of 3.0V to 36V with transients up to 42V.

The LMR43620-Q1 is specifically designed to meet low standby power requirements for always on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of 1.5µA at 13.5VIN and high light load efficiency. A seamless transition between PWM and PFM modes along with very low MOSFET ON resistances provide exceptional efficiency across the entire load range.

The control architecture and feature set are designed for an ultra-small design size. The device uses peak current mode control to minimize output capacitance. The LMR436x0-Q1 minimizes input filter size by using dual random spread spectrum, a low-EMI HotRod package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency between 200kHz and 2.2MHz to avoid noise sensitive frequency bands.

The rich feature set of the LMR436x0-Q1 is designed to simplify implementation for a wide range of automotive end equipments.
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類型 標題 日期
* Data sheet LMR436x0-Q1, 36V, 1A / 2A, Automotive Buck Converter With < 2.5µA IQ at 150°C TJMAX in 4mm2 HotRod™ QFN datasheet (Rev. G) PDF | HTML 2024年 5月 22日
Application brief Discrete Power Design for C2000™ PDF | HTML 2024年 8月 15日
White paper 克服低功耗應用中的低 IQ 挑戰 (Rev. B) PDF | HTML 2023年 4月 19日
Application note EMI Reduction Technique, Dual Random Spread Spectrum (Rev. A) 2022年 10月 19日
Functional safety information LMR436x0/LMR436x0-Q1 Functional Safety, FIT Rate, FMD and Pin FMA PDF | HTML 2022年 3月 18日
Technical article Lowering audible noise in automotive applications with TI’s DRSS technology PDF | HTML 2021年 3月 18日

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