MC33063AQDRJR datasheet(11/14 Pages) TI

Part #	MC33063AQDRJR

Description	1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATOR

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Manufacturer	TI [Texas Instruments]

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SLLS654A – APRIL 2005 – REVISED JANUARY 2007

MC33063AQ1

1.5A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATOR

11

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

calculations of key parameters

CALCULATION

STEP UP

STEP DOWN

VOLTAGE INVERTING

ton/toff

Vout ) VF * Vin(min)

V

in(min) * Vsat

Vout ) VF

V

in(min) * Vsat * Vout

V

out ) VF

V

in * Vsat

(ton + toff)

1

f

1

f

1

f

toff

ton

) t

off

ton

t

off

) 1

ton

) t

off

ton

t

off

) 1

ton

) t

off

ton

t

off

) 1

ton

) t

off * toff

ton

) t

off * toff

ton

) t

off * toff

CT

4

10*5 ton

4

10*5 ton

4

10*5 ton

Ipk(switch)

2I

out(max)

ton

t

off

) 1

2I

out(max)

2I

out(max)

ton

t

off

) 1

Rsc

0.3

I

pk(switch)

0.3

I

pk(switch)

0.3

I

pk(switch)

L(min)

V

in(min) * Vsat

I

pk(switch)

t

on(max)

V

in(min) * Vsat * Vout

I

pk(switch)

t

on(max)

V

in(min) * Vsat

I

pk(switch)

t

on(max)

CO

9

Ioutton

V

ripple pp

I

pk(switch) ton ) toff

8V

ripple pp

9

Ioutton

V

ripple pp

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