Diodes AP3503 Manuel d'utilisateur télécharger pdf (Page 6)

Data Sheet

340kHz, 3A Synchronous DC-DC Buck Converter AP3503

May. 2012 Rev. 1. 7 BCD Semiconductor Manufacturing Limited

Typical Performance Characteristics

=25ºC, V

=12V, V

OUT

=3.3V, unless otherwise noted.

Figure 4. Efficiency vs. Output Current Figure 5. Quiescent Current vs. Case Temperature

Figure 6. Feedback Voltage vs. Case Temperature Figure 7. Output Voltage vs. Output Current

0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2

100

Efficiency (%)

Output Current (A)

OUT

=3.3V, T

=25

C, L=10µH

=5V

=12V

-50 -25 0 25 50 75 100 125 150

0.9

1.0

1.1

1.2

1.3

1.4

Quiescent Current (mA)

Case Temperature (

-50 -25 0 25 50 75 100 125 150

0.6

0.7

0.8

0.9

1.0

1.1

1.2

Feedback Voltage (V)

Case Temperature (

0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2

3.0

3.1

3.2

3.3

3.4

3.5

3.6

Output Voltage (V)

Output Current (A)

1 2 3 4 5 6 7 8 9 10 11

Electrical Characteristics 5
=25ºC, V 6
3.202(0.126) 10
3.402(0.134) 10

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Diodes AP3503 Manuel d'utilisateur Page 6

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