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LMR12015

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Regulador de voltaje de 20 Vin, 1,5 A en LLP 10

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LMR12015

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 20 Vin (min) (V) 3 Vout (max) (V) 18 Vout (min) (V) 1 Features Enable, Frequency synchronization Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0024 Duty cycle (max) (%) 90
Rating Catalog Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 20 Vin (min) (V) 3 Vout (max) (V) 18 Vout (min) (V) 1 Features Enable, Frequency synchronization Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0024 Duty cycle (max) (%) 90
WSON (DSC) 10 9 mm² (3 mm × 3 mm)
  • Input Voltage Range of 3 V to 20 V
  • Output Voltage Range of 1 V to 18 V
  • LMR12015 and LMR12020 Deliver 1.5-A and 2-A Maximum Output Current, Respectively
  • 2-MHz Switching Frequency
  • Frequency Synchronization from 1 MHz to 2.35 MHz
  • 70-nA Shutdown Current
  • 1% Voltage-Reference Accuracy
  • Peak-Current-Mode PWM Operation
  • Thermal Shutdown
  • Internally Compensated
  • Internal Soft Start
  • Tight Accuracy for Powering Digital ICs
  • Extremely Easy to Use
  • Tiny Overall Solution Reduces System Cost
  • Space-Saving WSON (3 × 3 × 0.8 mm) Packaging
  • Create a custom design using the LMR12015 WEBENCH® Power Designer or LMR12020 WEBENCH® Power Designer
  • Input Voltage Range of 3 V to 20 V
  • Output Voltage Range of 1 V to 18 V
  • LMR12015 and LMR12020 Deliver 1.5-A and 2-A Maximum Output Current, Respectively
  • 2-MHz Switching Frequency
  • Frequency Synchronization from 1 MHz to 2.35 MHz
  • 70-nA Shutdown Current
  • 1% Voltage-Reference Accuracy
  • Peak-Current-Mode PWM Operation
  • Thermal Shutdown
  • Internally Compensated
  • Internal Soft Start
  • Tight Accuracy for Powering Digital ICs
  • Extremely Easy to Use
  • Tiny Overall Solution Reduces System Cost
  • Space-Saving WSON (3 × 3 × 0.8 mm) Packaging
  • Create a custom design using the LMR12015 WEBENCH® Power Designer or LMR12020 WEBENCH® Power Designer

The LMR120xx regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 10-pin WSON package. It contains 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 the LMR12015/20 is easy to use. The ability to drive 1.5-A or 2-A loads, with an internal 150-mΩ NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included featuring an ultra-low shutdown current of 70 nA. The LMR12015/20 utilizes peak 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 overvoltage protection.

The LMR120xx regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 10-pin WSON package. It contains 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 the LMR12015/20 is easy to use. The ability to drive 1.5-A or 2-A loads, with an internal 150-mΩ NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included featuring an ultra-low shutdown current of 70 nA. The LMR12015/20 utilizes peak 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 overvoltage protection.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMR120xx 20-VIN, 1.5-A or 2-A Step-Down Voltage Regulator in WSON Package datasheet (Rev. B) PDF | HTML 14/06/2019
Nota sobre la aplicación Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25/03/2024
Guía de selección Buck Converter Quick Reference Guide (Rev. B) 8/04/2021
Nota sobre la aplicación AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24/04/2013
Nota sobre la aplicación AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23/04/2013
Nota sobre la aplicación AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23/04/2013
Nota sobre la aplicación AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23/04/2013
Nota sobre la aplicación AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23/04/2013
Nota sobre la aplicación AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23/04/2013
Nota sobre la aplicación AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23/04/2013
Nota sobre la aplicación AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23/04/2013
Nota sobre la aplicación Input and Output Capacitor Selection 19/09/2005
Más documentación SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12/07/2005
Nota sobre la aplicación AN-643 EMI/RFI Board Design (Rev. B) 3/05/2004

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WSON (DSC) 10 Ultra Librarian
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