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Preliminary datasheet, Typical performance characteristics, 3v, t – Diodes AP3408 User Manual

Page 7: 25℃, unless otherwise specified

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Preliminary Datasheet

2A, 4MHz High Efficiency Synchronous Buck Converter AP3408

Jan. 2013 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

7

Typical Performance Characteristics

V

IN

=V

DD

=V

PVDD

=3.3V, T

A

=25℃, unless otherwise specified.



















Figure 4. Supply Current vs. Input Voltage

Figure 5. Supply Current vs. Ambient Temperature





















Figure 6. Efficiency vs. Output Current

Figure 7. PMOS ON Resistance vs.

Ambient Temperature



-60

-30

0

30

60

90

120

150

100

200

300

400

500

600

700

Suppl

y

Current

(

µ

A

)

Ambient Temperature (

o

C)

V

IN

=3.3V

V

FB

=0.75V

0

500

1000

1500

2000

2500

30

40

50

60

70

80

90

100

Ef

ficien

c

y

(%)

Output Current (mA)

V

OUT

=2.5V

V

IN

=3.3V

V

IN

=5.0V

-60

-30

0

30

60

90

120

150

60

80

100

120

140

PM

OS

ON

R

e

s

is

ta

n

ce

(

m

)

Ambient Temperature (

o

C)

V

IN

=3.3V

V

FB

=0.75V

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

100

200

300

400

500

600

Supp

ly Cu

rr

e

n

t

(

µ

A

)

Input Voltage (V)

V

FB

=0.75V