LM62440-Q1

Name: LM62440-Q1
Brand: TI
SKU: LM62440-Q1
Price: 1.589 USD

ACTIVO

Convertidor reductor síncrono de 3 V a 36 V, 4 A y bajo ruido para automoción

Haga su pedido ahora

Hoja de datos

document-pdfAcrobat LM62440-Q1 Automotive 3-V to 36-V, 4-A, Low EMI Synchronous Step-Down Converter datasheet (Rev. E) (Inglés) PDF | HTML

LM62440-Q1

ACTIVO

Hoja de datos

Haga su pedido ahora

Detalles del producto

Iout (max) (A)

4

Vin (min) (V)

3

Vin (max) (V)

36

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

400

Switching frequency (max) (kHz)

2200

Features

Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

34

Rating

Automotive

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000007

Iout (max) (A)

4

Vin (min) (V)

3

Vin (max) (V)

36

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

400

Switching frequency (max) (kHz)

2200

Features

Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

34

Rating

Automotive

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000007

VQFN-HR (RJR)

14

14 mm² 4 x 3.5

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +150°C, T_J
Functional Safety-Capable
- Documentation available to aid functional safety system design
Optimized for ultra low EMI requirements
- HotRod™ package and parallel input path minimize switch node ringing
- Spread spectrum reduces peak emissions
- 2.1-MHz and 400-kHz factory options
- Adjustable SW node rise time
- Pin selectable FPWM mode for constant frequency at light loads
Designed for automotive applications
- Supports 42-V automotive load dump
- ±1% total output regulation accuracy
- V_OUT adjustable from 1 V to 95% of V_IN, with factory options for 5-V and 3.3-V fixed output voltages
High efficiency power conversion at all loads
- 7-µA no load current at 13.5 V_IN, 3.3 V_OUT
- 83% PFM efficiency at 1 mA, 13.5 V_IN, 5 V_OUT
- External bias option for improved efficiency
Suitable for scalable power supplies
- Pin compatible with:
  - LM61440-Q1 (36 V, 4 A, adjustable f_SW)
  - LM61460-Q1 (36 V, 6 A, adjustable f_SW)
  - LMQ62440-Q1 (36 V, 4 A, internal capacitors)

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +150°C, T_J
Functional Safety-Capable
- Documentation available to aid functional safety system design
Optimized for ultra low EMI requirements
- HotRod™ package and parallel input path minimize switch node ringing
- Spread spectrum reduces peak emissions
- 2.1-MHz and 400-kHz factory options
- Adjustable SW node rise time
- Pin selectable FPWM mode for constant frequency at light loads
Designed for automotive applications
- Supports 42-V automotive load dump
- ±1% total output regulation accuracy
- V_OUT adjustable from 1 V to 95% of V_IN, with factory options for 5-V and 3.3-V fixed output voltages
High efficiency power conversion at all loads
- 7-µA no load current at 13.5 V_IN, 3.3 V_OUT
- 83% PFM efficiency at 1 mA, 13.5 V_IN, 5 V_OUT
- External bias option for improved efficiency
Suitable for scalable power supplies
- Pin compatible with:
  - LM61440-Q1 (36 V, 4 A, adjustable f_SW)
  - LM61460-Q1 (36 V, 6 A, adjustable f_SW)
  - LMQ62440-Q1 (36 V, 4 A, internal capacitors)

The LM62440-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 4 A of output current is delivered over a wide input range of 3.0 V to 36 V; 42-V tolerance supports load dump for durations of 400 ms. The LM62440-Q1 implements soft recovery from dropout, eliminating overshoot on the output.

The LM62440-Q1 is specifically designed for minimal EMI. The device incorporates pseudorandom spread spectrum, adjustable SW node rise time, a low-EMI VQFN-HR package featuring low switch node ringing, and an optimized pinout for ease of use. The switching frequency can be synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition, either 2.1-MHz or 400-kHz frequency factory options can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.

Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, provides exceptional efficiency across the entire load range.

The LM62440-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 4 A of output current is delivered over a wide input range of 3.0 V to 36 V; 42-V tolerance supports load dump for durations of 400 ms. The LM62440-Q1 implements soft recovery from dropout, eliminating overshoot on the output.

The LM62440-Q1 is specifically designed for minimal EMI. The device incorporates pseudorandom spread spectrum, adjustable SW node rise time, a low-EMI VQFN-HR package featuring low switch node ringing, and an optimized pinout for ease of use. The switching frequency can be synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition, either 2.1-MHz or 400-kHz frequency factory options can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.

Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, provides exceptional efficiency across the entire load range.

open-in-new

Buscar otro/a AC/DC & DC/DC converters (integrated FET)

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new

Comparar alternativas

Pin por pin con la misma funcionalidad que el dispositivo comparado

LM62435-Q1

ACTIVO

Convertidor reductor síncrono de 3 V a 36 V, 3.5 A y bajo EMI de calidad automotriz 3.5-A current limit

Documentación técnica

star

=Principal documentación para este producto seleccionada por TI

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.

Ver todo 8

	Tipo	Título		Fecha
*	Data sheet	LM62440-Q1 Automotive 3-V to 36-V, 4-A, Low EMI Synchronous Step-Down Converter datasheet (Rev. E)	PDF \| HTML	18 abr 2022
	Functional safety information	LM62440-Q1 Functional Safety, FIT Rate, Failure Mode Distribution, and Pin FMA (Rev. A)	PDF \| HTML	17 may 2022
	Application note	How to Migrate Between LM614xx and LM624xx Product Families	PDF \| HTML	01 nov 2021
	Technical article	Introduction to EMI: Standards, causes and mitigation techniques	PDF \| HTML	21 abr 2021
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		08 abr 2021
	Technical article	Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev		18 nov 2020
	Technical article	Optimizing flip-chip IC thermal performance in automotive designs	PDF \| HTML	11 dic 2019
	EVM User's guide	LM62440-Q1 EVM User's Guide		22 jun 2018

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LM62440EVM — Módulo de evaluación de convertidor reductor síncrono de 36 V, 4 A, 5 V, 2 MHz y bajo EMI

The LM62440 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM62440 synchronous step-down converter. The LM62440 provides exceptional efficiency, low Iq, and low EMI in small solution size.

Guía del usuario: PDF

No disponible en TI.com

Placa de evaluación

LP877451Q1EVM — Módulo de evaluación LP8774x-Q1 del PMIC de configuración de bajo nivel de ruido con reductor triple

El dispositivo LP8774x-Q1 está diseñado para satisfacer los requisitos de gestión de potencia de los circuitos integrados monolíticos de microondas (MMIC) para radares AWR e IWR en múltiples aplicaciones de radar automotriz e industrial. El dispositivo tiene tres convertidores de CC/CC (...)

Guía del usuario: PDF | HTML

Ver opciones

Modelo de simulación