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LM72630-Q1

現行

具備 I2C 介面的高功率密度、70V、3A CC-CV 同步降壓轉換器

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產品規格表

LM72630-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 70 Vin (min) (V) 4.5 Vout (max) (V) 55 Vout (min) (V) 0.8 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Soft Start Fixed, Thermal shutdown, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0000065 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 70 Vin (min) (V) 4.5 Vout (max) (V) 55 Vout (min) (V) 0.8 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Soft Start Fixed, Thermal shutdown, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0000065 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
VQFN (RRX) 29 36 mm² (6 mm × 6 mm)
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Synchronous CC-CV buck converter with I2C
    • Wide input voltage range: 4.5V to 70V
      • Meets LV148 / ISO21780 requirements
    • Programmable VOUT from 1V to 24V in 10mV steps or from 3.3V to 24V in 20mV steps
    • Programmable ILIM(avg) from 0.5A to 4.5A
    • Adjustable cable drop compensation (CDC)
    • Analog current monitoring pin (IMON)
  • Compatible with TPS2674X-Q1 USB Type-C power delivery (PD) controllers
  • Designed for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • ±5% dual-random spread spectrum with programmable modulation frequency
    • Programmable fSW: 200kHz to 2.2MHz
  • Programmable protection features
    • UV/OV (PG) warning: ±5% or ±10%
    • OVP warning, fault: 105% to 136% in 1% steps
    • HICCUP-mode OCP, TSD
  • 6mm × 6mm thermally optimized, RoHS compliant, VQFN-29 package with Pb-free plating
  • Create a custom design using the LM72630-Q1 with the WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Synchronous CC-CV buck converter with I2C
    • Wide input voltage range: 4.5V to 70V
      • Meets LV148 / ISO21780 requirements
    • Programmable VOUT from 1V to 24V in 10mV steps or from 3.3V to 24V in 20mV steps
    • Programmable ILIM(avg) from 0.5A to 4.5A
    • Adjustable cable drop compensation (CDC)
    • Analog current monitoring pin (IMON)
  • Compatible with TPS2674X-Q1 USB Type-C power delivery (PD) controllers
  • Designed for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • ±5% dual-random spread spectrum with programmable modulation frequency
    • Programmable fSW: 200kHz to 2.2MHz
  • Programmable protection features
    • UV/OV (PG) warning: ±5% or ±10%
    • OVP warning, fault: 105% to 136% in 1% steps
    • HICCUP-mode OCP, TSD
  • 6mm × 6mm thermally optimized, RoHS compliant, VQFN-29 package with Pb-free plating
  • Create a custom design using the LM72630-Q1 with the WEBENCH Power Designer

The LM72630-Q1 is a 70V, synchronous buck converter with constant-current constant-voltage (CC-CV) regulation and I2C interface. The device is compatible with USB Type-C PD controllers including the TPS2674X-Q1 family.

The converter uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. The highly accurate CC-CV operation enables seamless transition between constant-current and constant-voltage modes. The I2C interface allows programming of output voltage in 10mV or 20mV steps, average output current limit in 50mA steps, as well as output voltage slew rate, switching frequency, soft-start slew rate, mode of operation, current loop compensation, output active discharge strength, and cable drop compensation gain.

The LM72630-Q1 also contains an array of safety features including undervoltage and overvoltage protection with programmable thresholds, overcurrent protection with programmable hiccup mode, and thermal shutdown.

Additional features of the LM72630-Q1 include programmable diode emulation for lower current consumption at light-load conditions, open-drain nINT flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated dual input (VIN and VOUTF) VCC supply regulator, and oversized VDDA regulator for powering external loads, such as companion USB PD controllers.

The LM72630-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin VQFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).

The LM72630-Q1 converter belongs to a family of synchronous buck converters with constant-current constant-voltage (CC-CV) regulation and I2C interface listed in Related Products.

The LM72630-Q1 is a 70V, synchronous buck converter with constant-current constant-voltage (CC-CV) regulation and I2C interface. The device is compatible with USB Type-C PD controllers including the TPS2674X-Q1 family.

The converter uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. The highly accurate CC-CV operation enables seamless transition between constant-current and constant-voltage modes. The I2C interface allows programming of output voltage in 10mV or 20mV steps, average output current limit in 50mA steps, as well as output voltage slew rate, switching frequency, soft-start slew rate, mode of operation, current loop compensation, output active discharge strength, and cable drop compensation gain.

The LM72630-Q1 also contains an array of safety features including undervoltage and overvoltage protection with programmable thresholds, overcurrent protection with programmable hiccup mode, and thermal shutdown.

Additional features of the LM72630-Q1 include programmable diode emulation for lower current consumption at light-load conditions, open-drain nINT flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated dual input (VIN and VOUTF) VCC supply regulator, and oversized VDDA regulator for powering external loads, such as companion USB PD controllers.

The LM72630-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin VQFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).

The LM72630-Q1 converter belongs to a family of synchronous buck converters with constant-current constant-voltage (CC-CV) regulation and I2C interface listed in Related Products.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM72630-Q1 70V, 3A, Automotive, High-Efficiency CC-CV Buck Converter With I2C datasheet PDF | HTML 2026/7/17
功能安全資訊 LM726X0-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2026/5/26
EVM User's guide LM72880-Q1 CC-CV Buck Converter With I2C Evaluation Module (Rev. A) PDF | HTML 2025/6/27
EVM User's guide LM72650QEVM CC-CV Buck Converter Evaluation Module PDF | HTML 2025/6/26

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

LM72650QEVM — LM72650-Q1 評估模組

LM72650QEVM 評估模組 (EVM) 是使用 LM72650 的同步降壓 DC/DC 穩壓器。EVM 可透過 I2C 介面進行恆定電流和恆定電壓 (CC-CV) 調節。EVM 可在 24V 至 70V 的廣泛輸入電壓範圍內運作，在 CC 模式下提供最大 5A 的電流，並在 CV 模式下提供最大 20V 的電壓。平均電感器電流限制和輸出電壓的調節目標可由 I2C 編程。自由運轉切換頻率也可由 I2C 編程，並且能與頻率較高或較低的外部時脈訊號同步。EVM 設計為 TPS26742EQ1EVM 的子卡。

使用指南: PDF | HTML
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開發板

LM72880QEVM-400 — LM72880-Q1 評估模組

LM72880-Q1 評估模組 (EVM) 是一款同步降壓 DC/DC 穩壓器，可透過 I2C 介面進行恆定電流和恆定電壓 (CC-CV) 調節。EVM 可在 24V 至 70V（在 J4 VIN 終端）的廣泛輸入電壓範圍內運作，在 CC 模式下提供最大 5A 的電流，並在 CV 模式下提供最大 20V 的電壓。平均電感器電流限制和輸出電壓的調節目標可由 I2C 編程自由運轉切換頻率也可由 I2C 編程，並且能與頻率較高或較低的外部時脈訊號同步。

使用指南: PDF | HTML
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開發板

USB2ANY — USB2ANY 介面轉接器

USB2ANY 介面轉接器是一種工具，可讓電腦透過 USB 連線控制評估模組 (EVM)。USB2ANY 支援多種常用的通訊協定介面，並提供 3.3V 與 5V 的電源供應器。

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開發模組 (EVM) 的 GUI

LM72630-LM72650-LM72680-LM72880-GUI — GUI for LM726x0 and LM72880 to set I2C configuration registers

Graphical User Interface (GUI) to configure LM726x0 and LM72880 via I2C. You can use either the online GUI via a browser or the offline GUI.
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計算工具

LM72XXX-DESIGN-CALC — LM726xx, LM728xx quick-start design tool

This stand-alone tool facilitates and assists with the design of a DC/DC buck regulator based on the LM72xxx. The user can expeditiously arrive at an optimized design to meet the application requirements
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VQFN (RRX) 29 Ultra Librarian
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