LM5164-Q1

現行

具有超低 IQ 的 6V 至 100V 輸入、1A 同步 DC-DC 降壓轉換器

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產品規格表

document-pdfAcrobat LM5164-Q1 100V Input, 1A Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet (Rev. C) (英文) PDF | HTML

LM5164-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)

1

Vin (max) (V)

100

Vin (min) (V)

6

Vout (max) (V)

90

Vout (min) (V)

1.2

Features

Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable

Control mode

Constant on-time (COT)

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.00001

Duty cycle (max) (%)

99

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Topology

Buck

Iout (max) (A)

1

Vin (max) (V)

100

Vin (min) (V)

6

Vout (max) (V)

90

Vout (min) (V)

1.2

Features

Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable

Control mode

Constant on-time (COT)

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.00001

Duty cycle (max) (%)

99

TI functional safety category

Functional Safety-Capable

HSOIC (DDA)

8

29.4 mm² (4.9 mm × 6 mm)

AEC-Q100-qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, ambient temperature range
Designed for reliable and rugged applications
- Wide input voltage range of 6V to 100V
- Junction temperature range: –40°C to +150°C
- Fixed 3ms internal soft-start timer
- Peak and valley current-limit protection
- Input UVLO and thermal shutdown protection
Optimized for ultra-low EMI requirements
Designed for scalable automotive power supplies
- Low minimum on- and off-times of 50ns
- Adjustable switching frequency up to 1MHz
- Diode emulation for high light-load efficiency
- 10.5µA no-load input quiescent current
- 3µA shutdown quiescent current
Integration reduces design size and cost
- COT mode control architecture
- Integrated 0.725Ω NFET buck switch
- Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
- 1.2V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode
Create a custom regulator design using the LM5164-Q1 with WEBENCH Power Designer

AEC-Q100-qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, ambient temperature range
Designed for reliable and rugged applications
- Wide input voltage range of 6V to 100V
- Junction temperature range: –40°C to +150°C
- Fixed 3ms internal soft-start timer
- Peak and valley current-limit protection
- Input UVLO and thermal shutdown protection
Optimized for ultra-low EMI requirements
Designed for scalable automotive power supplies
- Low minimum on- and off-times of 50ns
- Adjustable switching frequency up to 1MHz
- Diode emulation for high light-load efficiency
- 10.5µA no-load input quiescent current
- 3µA shutdown quiescent current
Integration reduces design size and cost
- COT mode control architecture
- Integrated 0.725Ω NFET buck switch
- Integrated 0.34Ω NFET synchronous rectifier eliminates external Schottky diode
- 1.2V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode
Create a custom regulator design using the LM5164-Q1 with WEBENCH Power Designer

The LM5164-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM5164-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.

With integrated high-side and low-side power MOSFETs, the LM5164-Q1 delivers up to 1A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5164-Q1 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, remarkable peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5164-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ integrated circuit package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.

The LM5164-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM5164-Q1 operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for high-performance 48V battery automotive applications and MHEV/EV systems.

With integrated high-side and low-side power MOSFETs, the LM5164-Q1 delivers up to 1A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5164-Q1 include ultra-low IQ and diode emulation mode operation for high light-load efficiency, remarkable peak and valley overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5164-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ integrated circuit package. The device 1.27mm pin pitch provides adequate spacing for high-voltage applications.

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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	LM5164-Q1 100V Input, 1A Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet (Rev. C)	PDF \| HTML		2025/12/3
	證書	LM5164-Q1EVM-041 EU RoHS Declaration of Conformity (DoC) (Rev. B)			2021/3/3
	功能安全資訊	LM5164-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A)	PDF \| HTML		2021/1/8
	功能安全資訊	簡化汽車及工業領域的功能安全認證		Download English Version	2020/6/9
	應用說明	Stability Analysis and Design of COT Type-3 Ripple Circuit			2019/3/20
	應用說明	DC/DC Buck Converters With Ultra-Low IQ for Industrial Battery-Pack Applications			2019/2/20
	Application brief	IC Package Features Lead to Higher Reliability in Automotive Systems			2019/2/20
	技術文章	Searching for the newest innovations in power? Find them at APEC	PDF \| HTML		2019/2/9

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開發板

LM5164-Q1EVM — 同步降壓轉換器評估模組

LM5164-Q1 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LM5164-Q1 300-kHz 同步降壓轉換器。 LM5164-Q1EVM 可在極低靜態電流下運作，並以最少外部元件數量提供絕佳效率。

使用指南: PDF

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