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LM704A0-Q1

現行

車用、高密度、4.5V 至 45V 輸入、10A 低 EMI 同步 DC/DC 降壓轉換器

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LM704A0-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) 10 Vin (min) (V) 4.5 Vin (max) (V) 45 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Stackable, Thermal shutdown, UVLO adjustable EMI features Spread Spectrum Control mode Current Vout (min) (V) 0.8 Vout (max) (V) 36 Iq (typ) (µA) 6.5 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) 10 Vin (min) (V) 4.5 Vin (max) (V) 45 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Stackable, Thermal shutdown, UVLO adjustable EMI features Spread Spectrum Control mode Current Vout (min) (V) 0.8 Vout (max) (V) 36 Iq (typ) (µA) 6.5 Duty cycle (max) (%) 99
VQFN (RRX) 29 36 mm² 6 x 6
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Synchronous DC/DC converter with a versatile buck controller and robust power MOSFETs
    • Wide input voltage range: 4.5V to 45V
    • Shutdown mode current: 2.3µA
    • No-load IQ regulating 12V to 5V: 15.5µA
    • 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 36V
    • Dual-phase operation enabling output currents up to 16A
  • Designed for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
    • Switching frequency: 200kHz to 2.2MHz
    • Pin-configurable AUTO or FPWM operation
  • Inherent protection features for robust design
    • Internal hiccup-mode overcurrent protection
    • Enable, power good, and thermal shutdown
    • Internal or external loop compensation
  • 6mm × 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating
  • Create a custom design using the LM704A0-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 DC/DC converter with a versatile buck controller and robust power MOSFETs
    • Wide input voltage range: 4.5V to 45V
    • Shutdown mode current: 2.3µA
    • No-load IQ regulating 12V to 5V: 15.5µA
    • 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 36V
    • Dual-phase operation enabling output currents up to 16A
  • Designed for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
    • Switching frequency: 200kHz to 2.2MHz
    • Pin-configurable AUTO or FPWM operation
  • Inherent protection features for robust design
    • Internal hiccup-mode overcurrent protection
    • Enable, power good, and thermal shutdown
    • Internal or external loop compensation
  • 6mm × 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating
  • Create a custom design using the LM704A0-Q1 with the WEBENCH Power Designer

The LM704A0-Q1 is a low-IQ, wide-VIN synchronous buck converter designed for an input voltage range of 4.5V to 45V and delivering up to 10A of output current at fixed output voltages of 3.3V, 5V, 12V, or an adjustable output.

The LM704A0-Q1 uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. A pair of LM704A0-Q1 converters can be set up in an interleaved mode (paralleled outputs) with accurate current sharing for applications requiring up to 20A of output current.

The LM704A0-Q1 features a unique Dual Random Spread Spectrum (DRSS) function that combines low-frequency triangular and high-frequency cycle-by-cycle random modulations for improved EMI performance across a wide range of frequency bands.

Additional features of the LM704A0-Q1 include user-selectable diode emulation for lower current consumption at light-load conditions, open-drain Power-Good flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated VCC bias supply regulator, internal 2.8ms soft-start time, and thermal shutdown protection with automatic recovery.

The LM704A0-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).

The LM704A0-Q1 is a low-IQ, wide-VIN synchronous buck converter designed for an input voltage range of 4.5V to 45V and delivering up to 10A of output current at fixed output voltages of 3.3V, 5V, 12V, or an adjustable output.

The LM704A0-Q1 uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. A pair of LM704A0-Q1 converters can be set up in an interleaved mode (paralleled outputs) with accurate current sharing for applications requiring up to 20A of output current.

The LM704A0-Q1 features a unique Dual Random Spread Spectrum (DRSS) function that combines low-frequency triangular and high-frequency cycle-by-cycle random modulations for improved EMI performance across a wide range of frequency bands.

Additional features of the LM704A0-Q1 include user-selectable diode emulation for lower current consumption at light-load conditions, open-drain Power-Good flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated VCC bias supply regulator, internal 2.8ms soft-start time, and thermal shutdown protection with automatic recovery.

The LM704A0-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).
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* Data sheet LM704A0-Q1 45V, 10A, Automotive, High-Efficiency Buck Converter Designed for High Power Density datasheet 2024年 9月 18日

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LM706A0QEVM — LM706A0-Q1 評估模組

LM706A0-Q1 高密度評估模組 (EVM) 設計為使用從 8V 至 65V 的穩壓或非穩壓高電壓輸入軌，可在最高 10A 的負載電流下產生嚴格穩壓的 3.3V 輸出電壓。這款 VIN 範圍廣泛的 DC/DC 解決方案提供超大額定電壓與運作裕度，可承受供應軌電壓暫態。自由運轉切換頻率為 400kHz，並且能與頻率較高或較低的外部時脈訊號同步。為這款 EVM 選擇的動力系統被動元件符合汽車 AEC-Q200 標準，且可從多個元件廠商購買。

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VQFN (RRX) 29 Ultra Librarian
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