Diodes AP1509 - Manual (Page 9)

AP1509
150KHz, 2A PWM BUCK DC/DC CONVERTER
AP1509
Document number: DS31016 Rev. 4 - 2
9 of 13
www.diodes.com
June 2010
© Diodes Incorporated
Typical Performance Characteristics (Continued)
Header Frequency vs. Temperature Feedback Voltage vs. Temperature
(V
IN
=15V, V
OUT
=5V)
0
100
200
300
400
500
600
700
800
900
1000
-40 10 60 110
Frequen
cy (KH
z
)
Temperature (
o
C)
1.22
1.23
1.24
1.25
1.26
-40 10 60 110
F
eedback
Voltage
(V)
Temperature (
o
C)
Supply Current vs. Temperature
(V
IN
=15V, V
OUT
=5V, l
OUT
=0A)
Supply Current vs. Supply Voltage
(V
IN
=15V, V
OUT
=5V, l
OUT
=0A)
0
0.5
1
1.5
2
2.5
3
-40 10 60 110
Supply C
u
rrent
(mA)
Temperature (
o
C)
0
0.5
1
1.5
2
2.5
3
0 5 10 15
Supp
ly C
u
rrent (mA)
Supply Voltage (V)
Efficiency vs. Output Current
(V
IN
=15V, V
OUT
=5V)
Efficiency vs. Output Current
(V
IN
=15V, V
OUT
=3.3V)
70
75
80
85
90
0 20 40 60
Ef
fi
ci
e
n
cy (%
)
Output Current (mA)
55
65
75
85
0 20 40 60
E
ffi
c
ie
n
c
y
(
%
)
Output Current (mA)