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1993_Motorola_Linear_Interface_ICs_Vol_2.pdf

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Vin = 10VIo2OV<br />

+<br />

22oo"F<br />

TL431 , A, B Series<br />

Figure 30. High Efficiency Step-Down<br />

Switching Converter<br />

4.7k<br />

150"H@2.OA<br />

TIPI15r--_+-_---1I--JTlTL-._--_-o Vout = 5.OV<br />

lou1= I.OA<br />

lOOk<br />

10 51k<br />

Test Conditions Results<br />

Line Regulation Vin=IOV to20V,IO=I.OA 53mV (1.1%)<br />

Load Regulation Vln=15V,IO=OA tol.OA 25mV (0.5%)<br />

Output Ripple Vln = 10 V,IO = I.OA 50 mVp_p P.A.R.D.<br />

Output Ripple Vin=20V,IO=I.0A 100 mVp_p P.A.R.D.<br />

Efficiency Vin=15V,IO=I.OA 82%<br />

MOTOROLA LINEAR/INTERFACE <strong>ICs</strong> DEVICE DATA<br />

5-24<br />

+

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