LMR34215-Q1

Name: LMR34215-Q1
Brand: TI
SKU: LMR34215-Q1
Price: 1.11 USD

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Convertidor reductor síncrono ultrapequeño de 4,2 V a 42 V, 1,5 A

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Hoja de datos

document-pdfAcrobat LMR34215-Q1 4.2-V to 42-V, 1.5-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. B) (Inglés) PDF | HTML

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LMR34215-Q1

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Detalles del producto

Rating

Automotive

Topology

Buck

Iout (max) (A)

1.5

Vin (max) (V)

42

Vin (min) (V)

3.6

Vout (max) (V)

40

Vout (min) (V)

3.3

Features

Enable, Forced PWM, Light-load efficiency, Overcurrent protection, Power good, Synchronous rectification

EMI features

Low parasitic Hotrod packaging, Spread Spectrum

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000025

Duty cycle (max) (%)

99

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Topology

Buck

Iout (max) (A)

1.5

Vin (max) (V)

42

Vin (min) (V)

3.6

Vout (max) (V)

40

Vout (min) (V)

3.3

Features

Enable, Forced PWM, Light-load efficiency, Overcurrent protection, Power good, Synchronous rectification

EMI features

Low parasitic Hotrod packaging, Spread Spectrum

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000025

Duty cycle (max) (%)

99

TI functional safety category

Functional Safety-Capable

VQFN-HR (RNX)

12

6 mm² 3 x 2

AEC-Q100-qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Designed for automotive applications
- Junction temperature range –40°C to +150°C
- 0.4-V dropout with 1.5-A load (typical)
- ±1.5% reference voltage tolerance
- 5-V fixed-output, adjustable output voltage options
Suited for scalable power supplies
- Pin compatible with:
  - LMR36015-Q1, LMR36006-Q1 (60 V, 0.6 A, or 1.5 A)
  - LMR33630-Q1, LMR33620-Q1 (36 V, 2 A, or 3 A)
- 400-kHz, 2.1-MHz frequency options
Integration reduces solution size and cost
- Small, 2-mm × 3-mm VQFN package with wettable flanks
- Few external components
Low power dissipation across load spectrum
- 93% efficiency at 400 kHz (12 V_IN, 5 V_OUT, 1 A)
- Increased light load efficiency in PFM
- Low operating quiescent current of 24 µA
Optmized for ultra low EMI requirements
- Meets CISPR25 class 5 standard
- Hotrod™ package minimizes switch node ringing
- Parallel input path minimizes parasitic inductance
- Spread spectrum reduces peak emissions

AEC-Q100-qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Designed for automotive applications
- Junction temperature range –40°C to +150°C
- 0.4-V dropout with 1.5-A load (typical)
- ±1.5% reference voltage tolerance
- 5-V fixed-output, adjustable output voltage options
Suited for scalable power supplies
- Pin compatible with:
  - LMR36015-Q1, LMR36006-Q1 (60 V, 0.6 A, or 1.5 A)
  - LMR33630-Q1, LMR33620-Q1 (36 V, 2 A, or 3 A)
- 400-kHz, 2.1-MHz frequency options
Integration reduces solution size and cost
- Small, 2-mm × 3-mm VQFN package with wettable flanks
- Few external components
Low power dissipation across load spectrum
- 93% efficiency at 400 kHz (12 V_IN, 5 V_OUT, 1 A)
- Increased light load efficiency in PFM
- Low operating quiescent current of 24 µA
Optmized for ultra low EMI requirements
- Meets CISPR25 class 5 standard
- Hotrod™ package minimizes switch node ringing
- Parallel input path minimizes parasitic inductance
- Spread spectrum reduces peak emissions

The LMR34215-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, output current is delivered over a wide input voltage range of 4.2 V to 42 V.

The LMR34215-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

The LMR34215-Q1 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, output current is delivered over a wide input voltage range of 4.2 V to 42 V.

The LMR34215-Q1 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.

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Documentación técnica

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=Principal documentación para este producto seleccionada por TI

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Data sheet	LMR34215-Q1 4.2-V to 42-V, 1.5-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. B)	PDF \| HTML	19 nov 2020
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		08 abr 2021
	Functional safety information	LMR34215-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	06 ene 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
	Design guide	Automotive ADAS camera power supply reference design (Rev. A)		22 ago 2019

Diseño y desarrollo

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Placa de evaluación

LMR34215FSC5EVM — Módulo de evaluación del convertidor reductor síncrono de 42 V y 1,5 A

El módulo de evaluación (EVM) LMR34215FSC5EVM ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del regulador reductor de entrada amplia LMR34215-Q1. El LMR34215-Q1 es un convertidor CC/CC reductor sincrónico fácil de usar capaz de conducir hasta 1.5 A de corriente de carga a (...)

Guía del usuario: PDF

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Placa de evaluación

LMR36015AEVM — Módulo de evaluación del convertidor reductor síncrono

El módulo de evaluación (EVM) LMR36015 es un circuito totalmente ensamblado y probado para evaluar el convertidor reductor sincrónico LMR36015. El LMR36015 proporciona una eficacia y precisión excepcionales en una solución de tamaño muy reducido.

Guía del usuario: PDF