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JRE
JRE
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I was planingplanning to use this part (datasheet) (basically MC34063 with thermal shutdown,) but I don´t have enough room above the PCB. I need to keep the components under 2.2mm.

According to my calculation I need like 70uF in Cout.

I was going to use ana tantalum capacitor, but then I read on page 9 in the datasheet:

"Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications."

Can I use a antalumtantalum with low ESR instead? What is "low"? Under 3 ohm? Under 1 ohm? Or 300mohm?

Is it better to use ceramic? Or I have, or do Ihave to use electrolytic? (hardIt is hard to find short electrolyticelectrolytics.)

I was planing to use this part (datasheet) (basically MC34063 with thermal shutdown,) but I don´t have enough room above the PCB. I need to keep the components under 2.2mm.

According to my calculation I need like 70uF in Cout.

I was going to use an tantalum capacitor, but then I read on page 9 in the datasheet:

"Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications."

Can I use a antalum with low ESR instead? What is "low"? Under 3 ohm? Under 1 ohm? Or 300mohm?

Is it better to use ceramic? Or I have to use electrolytic? (hard to find short electrolytic)

I was planning to use this part (datasheet) (basically MC34063 with thermal shutdown,) but I don´t have enough room above the PCB. I need to keep the components under 2.2mm.

According to my calculation I need like 70uF in Cout.

I was going to use a tantalum capacitor, but then I read on page 9 in the datasheet:

"Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications."

Can I use a tantalum with low ESR instead? What is "low"? Under 3 ohm? Under 1 ohm? Or 300mohm?

Is it better to use ceramic, or do Ihave to use electrolytic? (It is hard to find short electrolytics.)

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Marcus Müller
Marcus Müller
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I have a height problem (with my switching regulator on a height constrained PCB)

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JRE
JRE
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I was planing to use this    part (datasheet) (basically MC34063 with thermal shutdown,) BUT! but I don´t have so muchenough room above the PCB. I need to keep the components under 2.2mm.

According to my calculation I need like 70uF in Cout.
I

I was gonagoing to use an Tantaltantalum capacitor, but then I read on page 9 in the datasheet:

"Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications."

Can I use an Tantaluma antalum with low ESR instead? And whatWhat is "low"? underUnder 3 ohm? underUnder 1 ohm? orOr 300mohm? or is

Is it better to use ceramic? Or I have to use electrolytic? (hard to find short electrolytic)

I was planing to use this  part (datasheet) (basically MC34063 with thermal shutdown) BUT! I don´t have so much room above the PCB. I need to keep the components under 2.2mm.

According to my calculation I need like 70uF in Cout.
I was gona use an Tantal but then I read on page 9 in the datasheet:

"Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications."

Can I use an Tantalum with low ESR instead? And what is "low"? under 3 ohm? under 1 ohm? or 300mohm? or is it better to use ceramic? Or I have to use electrolytic? (hard to find short electrolytic)

I was planing to use this  part (datasheet) (basically MC34063 with thermal shutdown,) but I don´t have enough room above the PCB. I need to keep the components under 2.2mm.

According to my calculation I need like 70uF in Cout.

I was going to use an tantalum capacitor, but then I read on page 9 in the datasheet:

"Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications."

Can I use a antalum with low ESR instead? What is "low"? Under 3 ohm? Under 1 ohm? Or 300mohm?

Is it better to use ceramic? Or I have to use electrolytic? (hard to find short electrolytic)

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mistermister
mistermister
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