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LM46002-Q1

ACTIVO

Convertidor de tensión reductor síncrono de 3.5 V a 60 V y 2 A apto para automoción

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LM65625-Q1 ACTIVO Convertidor buck automotriz de 3 V a 65 V y 2.5 A optimizado para densidad de potencia y baja EMI Better efficiency and smaller solution size

LM46002-Q1

ACTIVO
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Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 60 Vin (min) (V) 3.5 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 99
Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 60 Vin (min) (V) 3.5 Vout (max) (V) 28 Vout (min) (V) 1 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000027 Duty cycle (max) (%) 99
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • 27-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Tested to EN55022/CISPR 22 EMI standards
  • Integrated Synchronous Rectification
  • Adjustable Frequency Range: 200 kHz to 2.2 MHz (500-kHz default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable With Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft Start into Pre-Biased Load
  • Internal and Adjustable External Soft Start
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short-Circuit Protection With Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM46002-Q1 With the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • 27-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Tested to EN55022/CISPR 22 EMI standards
  • Integrated Synchronous Rectification
  • Adjustable Frequency Range: 200 kHz to 2.2 MHz (500-kHz default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable With Almost Any Combination of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft Start into Pre-Biased Load
  • Internal and Adjustable External Soft Start
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short-Circuit Protection With Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM46002-Q1 With the WEBENCH® Power Designer

The LM46002-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46002-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in various load-current options and 36-V maximum input voltage. The device is pin-to-pin compatible package with LM4360x and LM4600x family. Peak-current-mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components. Pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46002A-Q1 version is optimized for PFM operation and recommended for new designs. The LM46002-Q1 device is available in the 16-lead HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch.

The LM46002-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46002-Q1 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in various load-current options and 36-V maximum input voltage. The device is pin-to-pin compatible package with LM4360x and LM4600x family. Peak-current-mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light load efficiency. The family requires few external components. Pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46002A-Q1 version is optimized for PFM operation and recommended for new designs. The LM46002-Q1 device is available in the 16-lead HTSSOP (PWP) package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch.
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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 LM46002-Q1 3.5-V to 60-V, 2-A, Synchronous Step-Down Voltage Converter datasheet (Rev. B) PDF | HTML 14/07/2017
Nota sobre la aplicación Differences Between LM4600x/LM4360x A and Non-A OPNs 27/03/2018
Nota sobre la aplicación Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B) 20/02/2015
Nota sobre la aplicación Thermal Design Made Simple With LM43603 and LM46002 15/09/2014
Nota sobre la aplicación Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12/09/2014
Nota sobre la aplicación Compensation Made SIMPLE With LM4360x, LM4600x 29/07/2014

Diseño y desarrollo

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Placa de evaluación

LM46002PWPEVM — Módulo de evaluación del convertidor reductor síncrono LM46002PWP

The Texas Instruments LM46002PWPEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM46002PWP, A 60V Synchronous Step-Down Converter. The EVM operates from a 3.5V to 60V input and provides a 5V output at 2A.

Guía del usuario: PDF
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LM46002 PSpice Inverting Buck Boost and Non Inverting Buck Transient Model (Rev. C)

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LM46002 TINA-TI Transient Reference Design

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LM46002 Unencrypted Inverting and Non-inverting PSpice Transient Model (Rev. B)

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Diseño de referencia

TIDA-020014 — Dis. de ref. de et. de pot. del inver. de tracc. HEV/EV c/3 tipos de sol. de fuen. de pol. IGBT/SiC

Este diseño de referencia presenta una etapa de potencia monofásica de inversor de tracción con tres entradas de batería de coche 12 V, soluciones de alimentación de polarización de 4.2 W para sistemas de vehículos eléctricos híbridos y vehículos eléctricos (HEV/EV). Todas las soluciones de (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 16 Ultra Librarian
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