LM5008

現行

9.5-95V 大範圍 Vin、350mA 恒定導通時間非同步降壓穩壓器

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產品規格表

document-pdfAcrobat LM5008 95-V, 350-mA, Constant On-Time DC/DC Buck Switching Regulator datasheet (Rev. I) (英文) PDF | HTML

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功能相同，但針腳輸出與所比較的裝置不同。

LM5163

現行

具有超低 IQ 的 100V 輸入、0.5A 同步降壓 DC/DC 轉換器 Synchronous rectification for smaller footprint and high efficiency and low IQ.

LM5008

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.35

Vin (max) (V)

95

Vin (min) (V)

9.5

Vout (max) (V)

75

Vout (min) (V)

2.5

Features

Enable, Over Current Protection

Control mode

Constant on-time (COT)

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000485

Duty cycle (max) (%)

99

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.35

Vin (max) (V)

95

Vin (min) (V)

9.5

Vout (max) (V)

75

Vout (min) (V)

2.5

Features

Enable, Over Current Protection

Control mode

Constant on-time (COT)

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000485

Duty cycle (max) (%)

99

WSON (NGU)

8

16 mm² (4 mm × 4 mm)

VSSOP (DGK)

8

14.7 mm² (3 mm × 4.9 mm)

Operating Input Voltage Range: 6 V to 95 V
Integrated 100-V, N-Channel Buck Switch
Internal V_CC Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
On-Time Varies Inversely With Line Voltage
Operating Frequency Remains Constant With Varying Line Voltage and Load Current
Adjustable Output Voltage
Highly Efficient Operation
Precision Internal Reference
Low Bias Current
Intelligent Current Limit Protection
Thermal Shutdown
8-Pin VSSOP and WSON Packages
Create a Custom Design Using the LM5008 With the WEBENCH^® Power Designer

Operating Input Voltage Range: 6 V to 95 V
Integrated 100-V, N-Channel Buck Switch
Internal V_CC Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
On-Time Varies Inversely With Line Voltage
Operating Frequency Remains Constant With Varying Line Voltage and Load Current
Adjustable Output Voltage
Highly Efficient Operation
Precision Internal Reference
Low Bias Current
Intelligent Current Limit Protection
Thermal Shutdown
8-Pin VSSOP and WSON Packages
Create a Custom Design Using the LM5008 With the WEBENCH^® Power Designer

The LM5008 350-mA step-down switching converter features all of the functions needed to implement a low-cost and efficient buck regulator. This high-voltage converter has an integrated 100-V N-channel buck switch and operates over an input voltage range of 9 V to 95 V. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The converter uses a hysteretic control scheme with a PWM on-time inversely proportional to V_IN. This feature allows the operating frequency to remain relatively constant. The hysteretic control requires no loop compensation. An intelligent current limit is implemented with forced off-time, which is inversely proportional to V_OUT. This scheme ensures short-circuit protection while providing minimum foldback. Other protection features include: thermal shutdown, V_CC undervoltage lockout, gate drive undervoltage lockout, and maximum duty cycle limiter.

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重要文件	類型	標題	格式選項	日期
*	資料表	LM5008 95-V, 350-mA, Constant On-Time DC/DC Buck Switching Regulator datasheet (Rev. I)	PDF \| HTML	2018/10/11
	應用說明	Stability Analysis and Design of COT Type-3 Ripple Circuit		2019/3/20
	選擇指南	Power Management Guide 2018 (Rev. R)		2018/6/25
	白皮書	Wide VIN power management ICs simplify white paper (Rev. A)		2013/9/19
	應用說明	Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B)		2013/4/30
	應用說明	Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A)		2013/4/23
	應用說明	Boot Capacitor Regulation in LM25007 Constant-On-Time (COT) Converter (Rev. A)		2013/4/23