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

LMR12007

AKTIV

DC/DC-Abwärtsregler, 750 mA Last, in Gehäuse Thin SOT23

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Ähnliche Funktionalität wie verglichener Baustein
TPS62932 AKTIV Synchroner Abwärtswandler mit niedrigem Ruhestrom, 3,8-V- bis 30-V-Eingang, 2 A, 200 kHz bis 2,2 MHz Higher efficiency with lower IQ and wider VIN in a smaller package.

Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.75 Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 550 Switching frequency (max) (kHz) 1600 Features Enable Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 16 Iq (typ) (µA) 1500 Duty cycle (max) (%) 96
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.75 Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 550 Switching frequency (max) (kHz) 1600 Features Enable Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 16 Iq (typ) (µA) 1500 Duty cycle (max) (%) 96
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Thin SOT-6 Package
  • 3.0V to 18V Input Voltage Range
  • 1.25V to 16V Output Voltage Range
  • 750mA Output Current
  • 550kHz (LMR12007Y) and 1.6MHz
    (LMR12007X) Switching Frequencies
  • 350mΩ NMOS Switch
  • 30nA Shutdown Current
  • 1.25V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • WEBENCH Online Design Tool
  • Thermal Shutdown
  • Thin SOT-6 Package
  • 3.0V to 18V Input Voltage Range
  • 1.25V to 16V Output Voltage Range
  • 750mA Output Current
  • 550kHz (LMR12007Y) and 1.6MHz
    (LMR12007X) Switching Frequencies
  • 350mΩ NMOS Switch
  • 30nA Shutdown Current
  • 1.25V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • WEBENCH Online Design Tool
  • Thermal Shutdown

The LMR12007 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin Thin SOT package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components and online design support through WEBENCH, the LMR12007 is easy to use. The ability to drive 750mA loads with an internal 350mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world class control circuitry allows for on-times as low as 13ns, thus supporting exceptionally high frequency conversion over the entire 3V to 18V input operating range down to the minimum output voltage of 1.25V. Switching frequency is internally set to 550kHz (LMR12007Y) or 1.6MHz (LMR12007X), allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30nA. The LMR12007 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection.

The LMR12007 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6-pin Thin SOT package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components and online design support through WEBENCH, the LMR12007 is easy to use. The ability to drive 750mA loads with an internal 350mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world class control circuitry allows for on-times as low as 13ns, thus supporting exceptionally high frequency conversion over the entire 3V to 18V input operating range down to the minimum output voltage of 1.25V. Switching frequency is internally set to 550kHz (LMR12007Y) or 1.6MHz (LMR12007X), allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30nA. The LMR12007 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMR12007 Thin SOT23 750mA Load Step-Down DC-DC Regulator datasheet 06 Sep 2013
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25 Mär 2024
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24 Apr 2013
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23 Apr 2013
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23 Apr 2013
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23 Apr 2013
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23 Apr 2013
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23 Apr 2013
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23 Apr 2013
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23 Apr 2013
Application note Input and Output Capacitor Selection 19 Sep 2005
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12 Jul 2005
Application note AN-643 EMI/RFI Board Design (Rev. B) 03 Mai 2004

Design und Entwicklung

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

Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOT-23-THN (DDC) 6 Ultra Librarian

Bestellen & Qualität

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

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