Inicio Gestión de la energía Reguladores lineales y de baja salida (LDO)

LP2951-Q1

ACTIVO

Regulador de tensión automotriz de 100mA 30 V de caída baja con alimentación buena y activación

Detalles del producto

Output options Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Rating Automotive Noise (µVrms) 430 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.1 Vin (max) (V) 30 Vin (min) (V) 2 Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Rating Automotive Noise (µVrms) 430 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 WSON (DRG) 8 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, TA
    • Temperature grade 1: −40°C to +125°C, TJ
  • Wide input voltage range
    • VIN range (new chip): 2V to 30V
  • Wide output voltage range VOUT
    • Fixed option: 3.3V, 5.0V
    • Adjustable option: 1.2V to 29V
  • Output current: Up to 100mA
  • VOUT accuracy:
    • ±2% over line, load, and temperature for legacy chip
    • ±1% over line, load, and temperature for new chip
  • Quiescent current IQ (new chip): 50µA (typical)
  • Low dropout: 340mV (typical) for new chip
  • Output current limiting and thermal shutdown
  • Open-drain error output
  • Stable over a wide range of ceramic output capacitor values:
    • CL range: 1µF to 100µF (new chip)
    • ESR range: 0Ω to 2Ω (new chip)
  • Package options:
    • D (8-pin SOIC)
    • DRG (8-pin WSON)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: −40°C to +125°C, TA
    • Temperature grade 1: −40°C to +125°C, TJ
  • Wide input voltage range
    • VIN range (new chip): 2V to 30V
  • Wide output voltage range VOUT
    • Fixed option: 3.3V, 5.0V
    • Adjustable option: 1.2V to 29V
  • Output current: Up to 100mA
  • VOUT accuracy:
    • ±2% over line, load, and temperature for legacy chip
    • ±1% over line, load, and temperature for new chip
  • Quiescent current IQ (new chip): 50µA (typical)
  • Low dropout: 340mV (typical) for new chip
  • Output current limiting and thermal shutdown
  • Open-drain error output
  • Stable over a wide range of ceramic output capacitor values:
    • CL range: 1µF to 100µF (new chip)
    • ESR range: 0Ω to 2Ω (new chip)
  • Package options:
    • D (8-pin SOIC)
    • DRG (8-pin WSON)

The LP2951-Q1 is a wide input low-dropout regulator (LDO) supporting an input voltage range from 2V to 30V and can supply up to 100mA of load current. The LP2951-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-Q1 gives 3.3V or 5V fixed output voltages. Alternatively, leave the SENSE and VTAP pins open and connect FEEDBACK to an external resistor divider. This configuration allows the output to be set to any value between 1.2V to 29V.

The LP2951-Q1 has a ERROR output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The SHUTDOWN input and ERROR output are used for sequencing multiple power supplies in the system.

The LP2951-Q1 is a wide input low-dropout regulator (LDO) supporting an input voltage range from 2V to 30V and can supply up to 100mA of load current. The LP2951-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-Q1 gives 3.3V or 5V fixed output voltages. Alternatively, leave the SENSE and VTAP pins open and connect FEEDBACK to an external resistor divider. This configuration allows the output to be set to any value between 1.2V to 29V.

The LP2951-Q1 has a ERROR output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The SHUTDOWN input and ERROR output are used for sequencing multiple power supplies in the system.

Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 3
Tipo Título Fecha
* Data sheet LP2951-Q1 Automotive, Adjustable Micropower Voltage Regulator With Shutdown datasheet (Rev. H) PDF | HTML 08 nov 2024
Functional safety information LP2951-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 07 nov 2024
EVM User's guide LP2951 EVM User's Guide (Rev. A) 05 ene 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

LP2951EVM — Módulo de evaluación de reguladores de baja caída (LDO) fijos/ajustables de microalimentación LP2951

The LP2951 devices are bipolar low-dropout (LDO) voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V with an output load up to 100 mA. The LP2951EVM allows for flexibility in design, allowing the user to add or remove input and output capacitors, as well as (...)
Guía del usuario: PDF
Modelo de simulación

LP2951-50 PSpice Transient Model

SLVMA10.ZIP (24 KB) - PSpice Model
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian
WSON (DRG) 8 Ultra Librarian

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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos