MC33063ADRJR datasheet(10/20 Pages) TI

部品番号	MC33063ADRJR

部品情報	1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS

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V

out ) VF

V

in(min) * Vsat * Vout

V

out ) VF

V

in * Vsat

V

out ) VF * Vin(min)

V

in(min) * Vsat

1

f

1

f

1

f

ton ) toff

ton

t

off

) 1

ton ) toff

ton

t

off

) 1

ton ) toff

ton

t

off

) 1

ton ) toff * toff

4

10*5 ton

4

10*5 ton

4

10*5 ton

2I

out(max)

2I

out(max)

ton

t

off

) 1

2I

out(max)

ton

t

off

) 1

0.3

I

pk(switch)

0.3

I

pk(switch)

0.3

I

pk(switch)

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)

9

I

outton

V

ripple(pp)

9

I

outton

V

ripple(pp)

I

pk(switch) ton ) toff

8V

ripple(pp)

1.25(1 )

R2

R1

)

1.25(1 )

R2

R1

)

*1.25(1 )

R2

R1

)

MC33063A

MC34063A

SLLS636L – DECEMBER 2004 – REVISED DECEMBER 2009

www.ti.com

APPLICATION INFORMATION

CALCULATION

STEP UP

STEP DOWN

VOLTAGE INVERTING

ton/toff

(ton + toff)

toff

ton

CT

Ipk(switch)

RSC

L(min)

CO

Vout

See Figure 6

See Figure 8

See Figure 10

Vsat = Saturation voltage of the output switch

VF = Forward voltage drop of the chosen output rectifier

The following power-supply parameters are set by the user:

Vin = Nominal input voltage

Vout = Desired output voltage

Iout = Desired output current

fmin = Minimum desired output switching frequency at the selected values of Vin and Iout

Vripple = Desired peak-to-peak output ripple voltage. The ripple voltage directly affects the line and load

regulation and, thus, must be considered. In practice, the actual capacitor value should be larger than the

calculated value, to account for the capacitor's equivalent series resistance and board layout.

10

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同様の部品番号 - MC33063ADRJR

メーカー	部品番号	データシート	部品情報
Texas Instruments	MC33063ADRJR	303Kb / 15P	[Old version datasheet] 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS
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同様の説明 - MC33063ADRJR

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