Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)

LM5009

AKTIV

Nicht synchroner Abwärtsregler (Buck), großer Eingangsbereich, 9,5–95 V, 150 mA, mit konstanter Eins

Eine neuere Version dieses Produkts ist verfügbar

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.

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.15 Vin (min) (V) 9.5 Vin (max) (V) 95 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 85 Iq (typ) (µA) 485 Duty cycle (max) (%) 99
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.15 Vin (min) (V) 9.5 Vin (max) (V) 95 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 85 Iq (typ) (µA) 485 Duty cycle (max) (%) 99
VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WSON (NGU) 8 16 mm² 4 x 4
  • Newer product: LM5163 100-V, 0.5-A synchronous buck DC/DC converter
  • Integrated N-channel MOSFET
  • 150-mA output current capability
  • Ultra-fast transient response
  • No loop compensation required
  • VIN feedforward provides constant operating frequency
  • Switching frequency can exceed 600 kHz
  • Highly efficient operation
  • 2% accurate 2.5-V feedback from –40°C to +125°C
  • Internal start-up regulator
  • Intelligent current limit protection
  • External shutdown control
  • Thermal shutdown
  • 8-pin VSSOP and thermally enhanced 8-pin WSON packages
  • Newer product: LM5163 100-V, 0.5-A synchronous buck DC/DC converter
  • Integrated N-channel MOSFET
  • 150-mA output current capability
  • Ultra-fast transient response
  • No loop compensation required
  • VIN feedforward provides constant operating frequency
  • Switching frequency can exceed 600 kHz
  • Highly efficient operation
  • 2% accurate 2.5-V feedback from –40°C to +125°C
  • Internal start-up regulator
  • Intelligent current limit protection
  • External shutdown control
  • Thermal shutdown
  • 8-pin VSSOP and thermally enhanced 8-pin WSON packages

The LM5009 step-down switching regulator features all of the functions needed to implement a low-cost and efficient, buck regulator. This device is capable of driving a 150-mA load current from a 9.5-V to 95-V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage can be set from 2.5 V to 85 V. This high-voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is provided in 8-pin VSSOP and thermally-enhanced, 8-pin WSON packages. The regulator operation is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultrafast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This scheme ensures short-circuit protection and provides minimum foldback. Other features include thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout, and maximum duty cycle limiter.

The new product LM5163 offers reduced BOM count, reduced solution size, lower operating quiescent current and many other features. Start WEBENCH design with LM5163.

The LM5009 step-down switching regulator features all of the functions needed to implement a low-cost and efficient, buck regulator. This device is capable of driving a 150-mA load current from a 9.5-V to 95-V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage can be set from 2.5 V to 85 V. This high-voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is provided in 8-pin VSSOP and thermally-enhanced, 8-pin WSON packages. The regulator operation is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultrafast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This scheme ensures short-circuit protection and provides minimum foldback. Other features include thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout, and maximum duty cycle limiter.

The new product LM5163 offers reduced BOM count, reduced solution size, lower operating quiescent current and many other features. Start WEBENCH design with LM5163.

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Technische Dokumentation

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Alle anzeigen 13
Typ Titel Datum
* Data sheet LM5009 Wide Input, 100-V,150-mA, Step-Down Switching Regulator datasheet (Rev. I) PDF | HTML 25 Mai 2021
Application note Stability Analysis and Design of COT Type-3 Ripple Circuit 20 Mär 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Simplifying 100V wide VIN power conversion PDF | HTML 11 Nov 2016
Technical article Who tampered with my PLC? Are industrial control systems too flexible? PDF | HTML 05 Aug 2016
White paper Wide VIN power management ICs simplify white paper (Rev. A) 19 Sep 2013
Application note AN-1820 LM5032 Interleaved Boost Converter (Rev. A) 06 Mai 2013
EVM User's guide AN-1962 LM5032 Interleaved Boost Evaluation Board (Rev. A) 06 Mai 2013
EVM User's guide AN-1445 LM5009 Evaluation Board (Rev. D) 30 Apr 2013
EVM User's guide AN-1955 LM5009A Evaluation Board (Rev. A) 30 Apr 2013
Application note Analysis & Design of Hysteretic Constant Freq Buck Regr Using the LM5007 (Rev. B) 30 Apr 2013
Application note Boot Capacitor Regulation in LM25007 Constant-On-Time (COT) Converter (Rev. A) 23 Apr 2013
Application note Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) 23 Apr 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

LM5009EVAL — 150 mA, 100 V, Abwärts-Schaltregler mit großem Vin-Bereich – Evaluierungsmodul

LM5009 150mA, 100V Step-Down Switching Regulator

Benutzerhandbuch: PDF
Simulationsmodell

LM5009 PSpice Transient Model

SNVM417.ZIP (174 KB) - PSpice Model
Simulationsmodell

LM5009 TINA-TI Transient Reference Design

SNVM035.TSC (141 KB) - TINA-TI Reference Design
Simulationsmodell

LM5009 TINA-TI Transient Spice Model

SNVM036.ZIP (15 KB) - TINA-TI Spice Model
Simulationsmodell

LM5009 Unencrypted PSpice Transient Model

SNVM954.ZIP (2 KB) - PSpice Model
Berechnungstool

LM5009QUICK-CALC LM5009 Quick Start Calculator

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

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AC/DC- und DC/DC-Wandler (integrierter FET)
LM5009 Nicht synchroner Abwärtsregler (Buck), großer Eingangsbereich, 9,5–95 V, 150 mA, mit konstanter Eins
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Schaltplan: PDF
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Design guide: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VSSOP (DGK) 8 Ultra Librarian
WSON (NGU) 8 Ultra Librarian

Bestellen & Qualität

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  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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