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Data sheet, Typical performance characteristics, 25ºc, v – Diodes AP3503 User Manual

Page 6: 12v, v

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Data Sheet

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

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

6

Typical Performance Characteristics

T

A

=25ºC, V

IN

=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

10

20

30

40

50

60

70

80

90

100

E

ffi

c

ie

n

c

y

(

%

)

Output Current (A)

V

OUT

=3.3V, T

A

=25

o

C, L=10

µ

H

V

IN

=5V

V

IN

=12V

-50

-25

0

25

50

75

100

125

150

0.9

1.0

1.1

1.2

1.3

1.4

Quie

scent Cu

rrent (m

A)

Case Temperature (

o

C)

-50

-25

0

25

50

75

100

125

150

0.6

0.7

0.8

0.9

1.0

1.1

1.2

F

e

edb

ack

Vol

ta

ge

(V)

Case Temperature (

o

C)

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

O

u

tp

ut

Voltage (

V

)

Output Current (A)