Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)

LM26003

ACTIVO

Regulador de conmutación de 3 A con modo de suspensión de alta eficiencia

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LMQ66430 ACTIVO Convertidor reductor síncrono de 36 V y 3 A de baja EMI con IQ de 1.5 µA Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM26003

ACTIVO
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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 38 Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 35 Iq (typ) (A) 0.00004
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 38 Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 35 Iq (typ) (A) 0.00004
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • LM26003-Q1 is an Automotive-Grade Product
    That is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • High-Efficiency Sleep Mode
  • 40-µA Typical Iq in Sleep Mode
  • 10.8-µA Typical Iq in Shutdown Mode
  • 3.0-V Minimum Input Voltage
  • 4.0-V to 38-V Continuous Input Range
  • 1.5% Reference Accuracy
  • Cycle-by-Cycle Current Limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an External Clock
  • Power Good Flag
  • Forced PWM Function
  • Adjustable Soft-Start
  • 20-Pin HTSSOP Package
  • Thermal Shut Down
  • LM26003-Q1 is an Automotive-Grade Product
    That is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • High-Efficiency Sleep Mode
  • 40-µA Typical Iq in Sleep Mode
  • 10.8-µA Typical Iq in Shutdown Mode
  • 3.0-V Minimum Input Voltage
  • 4.0-V to 38-V Continuous Input Range
  • 1.5% Reference Accuracy
  • Cycle-by-Cycle Current Limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an External Clock
  • Power Good Flag
  • Forced PWM Function
  • Adjustable Soft-Start
  • 20-Pin HTSSOP Package
  • Thermal Shut Down

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.
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Documentación técnica

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Tipo Título Fecha
* Data sheet LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode datasheet (Rev. F) PDF | HTML 06 feb 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Technical article Design an automotive cluster power supply PDF | HTML 16 oct 2015
Technical article Spread Spectrum: Headache tablet or vitamin pill? PDF | HTML 18 may 2015
EVM User's guide AN-1884 LM26003 Evaluation Board (Rev. B) 24 abr 2013

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

LM26003EVAL — LM26003: regulador de conmutación de 3 A con módulo de evaluación de modo de suspensión de alta efic

The LM26003 evaluation board is designed to demonstrate the capabilities of the LM26003 switching regulator. The LM26003 eval board can be configured to provide an output of 3.3V at up to 3A from the input range of 4V to 38V. The nominal operating frequency is 300kHz and can be synchronized from (...)

Guía del usuario: PDF
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Modelo de simulación

LM26003 PSpice Average Model

SNVM185.ZIP (57 KB) - PSpice Model
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Modelo de simulación

LM26003 Unencrypted PSpice Average Model

SNVM874.ZIP (1 KB) - PSpice Model
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Diseños de referencia

PMP9458 — Diseño de referencia de fuente de alimentación de 14 W y salida múltiple Clase 5 de CISPR 25 para un

The PMP9458 reference design is a conducted EMI optimized 2-layer board power supply for automotive cluster units. The power supply has two buck regulators in cascaded connection: the first stage buck generates a 5V, 2A output using the LM26003, and the second stage generates two outputs of 2.8V, (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP9477 — Fuente de alimentación de salida múltiple Clase 5 de CISPR 25 con precarga para unidad de clúster de

The PMP9477 design is a conducted EMI optimized multi-output power supply for automotive cluster units.  The power supply has a pre-boost stage for cold crank and start-stop operation and two buck regulators.  The pre-boost stage features the LM3481 boost controller and will start to (...)
Test report: PDF
Esquema: PDF
Paquete Pasadores Descargar
HTSSOP (PWP) 20 Ver opciones
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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