Convertidor Buck de 600 mA y 1000 mA (CIR4980S )

Written by: Newton C. Braga
Category: Banco de circuitos

 

El convertidor DC-CC tipo Buck (bajador de tensión) mostrado en la figura 1 es sugerido por Analog Devices (www.analog.com) utilizando dos nuevos componentes de la empresa. El primero es el ADP2503 a 600 mA y el segundo el ADP2504 a 1000 mA. La frecuencia de conmutación es de 2,5 MHz y la carcasa utilizada sólo tiene 1 mm de altura. Las tensiones de entrada pueden quedar en el rango de 2,3 V a 5,5 V y las tensiones de salida fijas, pueden ser elegidas en el rango de 2,8 a 5,0 V. El dispositivo utilizado todavía tiene compensación interna, start, protección contra sobretemperatura y cortocircuito además de una clave de subtensión. La corriente quiescente es de apenas 38 uA y el único componente externo requerido es un choque de 1 uH.

 

Figura 1- Convertidor buck de 600/1000 mA de Analog Devices.
Figura 1- Convertidor buck de 600/1000 mA de Analog Devices.

 

 

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Banco de Circuitos

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