LM61460-Q1

ACTIVO

Convertidor reductor síncrono de 3 V a 36 V, 6 A y bajo ruido para automoción

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Hoja de datos

document-pdfAcrobat LM61460-Q1 Automotive 3-V to 36-V, 6-A, Low EMI Synchronous Step-Down Converter datasheet (Rev. F) (Inglés) PDF | HTML

LM61460-Q1

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Automotive

Topology

Buck

Iout (max) (A)

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

Vout (min) (V)

Features

Enable, Fixed soft start, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, Wettable flanks package

EMI features

Low parasitic Hotrod packaging, Spread Spectrum

Control mode

current mode

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000008

Duty cycle (max) (%)

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Topology

Buck

Iout (max) (A)

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

Vout (min) (V)

Features

Enable, Fixed soft start, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, Wettable flanks package

EMI features

Low parasitic Hotrod packaging, Spread Spectrum

Control mode

current mode

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000008

Duty cycle (max) (%)

TI functional safety category

Functional Safety-Capable

VQFN-HR (RJR)

14 mm² (4 mm × 3.5 mm)

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
- Adjustable SW node rise time
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
- 0.4-V dropout with 4-A load (typical)
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)
  - LM62440-Q1 (36 V, 4 A, fixed f_SW)
  - LMQ61460-Q1 (36 V, 6 A, internal caps)

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
- Adjustable SW node rise time
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
- 0.4-V dropout with 4-A load (typical)
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)
  - LM62440-Q1 (36 V, 4 A, fixed f_SW)
  - LMQ61460-Q1 (36 V, 6 A, internal caps)

The LM61460-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 6 A of output current is delivered over a wide input range of 3.0 V to 36 V; tolerant of 42 V, easing input surge protection design. The LM61460-Q1 implements soft recovery from dropout eliminating overshoot on the output.

The LM61460-Q1 is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be set or synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition the frequency 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, ensures exceptional efficiency across the entire load range.

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LM61430-Q1

ACTIVO

Convertidor reductor síncrono de 3 V a 36 V, 3 A y bajo ruido para automoción Lower load current, but pin-to-pin

Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	LM61460-Q1 Automotive 3-V to 36-V, 6-A, Low EMI Synchronous Step-Down Converter datasheet (Rev. F)	PDF \| HTML	22/06/2021
	Informe	Time-Saving and Cost-Effective Innovations for EMI Reduction (Rev. A)	PDF \| HTML	28/11/2023
	Nota sobre la aplicación	How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck	PDF \| HTML	16/08/2023
	Analog Design Journal	Thermal design concerns for buck converters in high‐power automotive apps (Rev. A)	PDF \| HTML	7/06/2023
	Informe	Demystifying Input Supply Current in DC/DC Regulators:From Shutdown to Full Load (Rev. A)	PDF \| HTML	6/06/2023
	Nota sobre la aplicación	Using the LM61460-Q1 and LM61495-Q1 in USB Type-C Applications	PDF \| HTML	15/12/2021
	Más documentación	Advanced Power-Converter Features for Reducing EMI	PDF \| HTML	7/12/2021
	Nota sobre la aplicación	How to Migrate Between LM614xx and LM624xx Product Families	PDF \| HTML	1/11/2021
	Información sobre seguridad funcional	LM614xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. B)	PDF \| HTML	15/09/2021
	Nota sobre la aplicación	Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A)	PDF \| HTML	26/07/2021
	Artículo técnico	Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy lev	PDF \| HTML	18/11/2020
	Nota sobre la aplicación	PCB Thermal Design Tips for Automotive DC/DC Converters	PDF \| HTML	12/11/2020
	Artículo técnico	How device-level features and package options can help minimize EMI in automotive	PDF \| HTML	21/08/2020
	Artículo técnico	Optimizing flip-chip IC thermal performance in automotive designs	PDF \| HTML	11/12/2019
	Artículo técnico	Powering infotainment systems of the future	PDF \| HTML	7/10/2019
	Artículo técnico	How to meet European Commission ADAS requirements with TI DC/DC converters	PDF \| HTML	9/05/2019
	Artículo técnico	Effects of IC package on EMI performance	PDF \| HTML	22/05/2018
	Artículo técnico	Designing USB into challenging automotive applications	PDF \| HTML	4/04/2018
	Nota sobre la aplicación	Designing High Performance, Low-EMI, Automotive Power Supplies		30/09/2017

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

LM61460EVM — Módulo de evaluación de convertidor reductor síncrono de 36 V, 6 A, 5 V, 400 kHz y bajo EMI

El módulo de evaluación (EVM) LM61460 es un circuito totalmente ensamblado y probado para evaluar el convertidor reductor sincrónico LM61460. El LM61460 proporciona una eficiencia excepcional, una IQ baja y una EMI baja en una solución de tamaño pequeño.

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