LM5008

AKTIV

Nicht synchroner Abwärtsregler (Buck), großer Eingangsbereich, 9,5–95 V, 350 mA, mit konstanter Eins

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Datenblatt

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

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Alternativen vergleichen

Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung.

LM5163

AKTIV

Synchroner DC/DC-Abwärtswandler mit 100 V-Eingang und 0,5 A und extrem niedrigem IQ Synchronous rectification for smaller footprint and high efficiency and low IQ.

LM5008

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

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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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	LM5008 95-V, 350-mA, Constant On-Time DC/DC Buck Switching Regulator datasheet (Rev. I)	PDF \| HTML	11.10.2018
	Anwendungshinweis	Stability Analysis and Design of COT Type-3 Ripple Circuit		20.03.2019
	Auswahlhilfe	Power Management Guide 2018 (Rev. R)		25.06.2018
	Whitepaper	Wide VIN power management ICs simplify white paper (Rev. A)		19.09.2013
	Anwendungshinweis	Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B)		30.04.2013
	Anwendungshinweis	Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A)		23.04.2013
	Anwendungshinweis	Boot Capacitor Regulation in LM25007 Constant-On-Time (COT) Converter (Rev. A)		23.04.2013

Design und Entwicklung

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