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LM2611

ACTIVO

Convertidor Cuk de 1.4 MHz

Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 125 Topology CuK, Inverting Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Features Light Load Efficiency Vout (min) (V) -32 Vout (max) (V) -1.23 Iq (typ) (µA) 1800 Switch current limit (typ) (A) 1.2
Rating Catalog Operating temperature range (°C) -40 to 125 Topology CuK, Inverting Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Features Light Load Efficiency Vout (min) (V) -32 Vout (max) (V) -1.23 Iq (typ) (µA) 1800 Switch current limit (typ) (A) 1.2
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 1.4-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • 1-mVp-p Output Ripple
  • –5 V at 300 mA From 5-V Input
  • Better Regulation Than a Charge Pump
  • Uses Tiny Capacitors and Inductors
  • Wide Input Range: 2.7 V to 14 V
  • Low Shutdown Current: <1 µA
  • 5-Pin SOT-23 Package
  • 1.4-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • 1-mVp-p Output Ripple
  • –5 V at 300 mA From 5-V Input
  • Better Regulation Than a Charge Pump
  • Uses Tiny Capacitors and Inductors
  • Wide Input Range: 2.7 V to 14 V
  • Low Shutdown Current: <1 µA
  • 5-Pin SOT-23 Package

The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.

The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.

The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).

The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.

The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.

The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).

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Documentación técnica

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Tipo Título Fecha
* Data sheet LM2611 1.4-MHz Cuk Converter datasheet (Rev. J) PDF | HTML 31 dic 2015
User guide AN-1203 LM2611 Demoboard (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

LM2611EVAL — Convertidor Cuk de 1.4 MHz

1.4MHz Cuk Converter

Guía del usuario: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOT-23 (DBV) 5 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

Soporte y capacitación

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