AP1515
150KHz, 1.5A PWM Buck DC/DC Converter
Typical Performance Characteristics (Continued)
AP1515 Saturation Voltage v.s. Temperature
(Vcc=12V,Vfb=0V,VSD=0)
1.4
1.3
AP1515 Switch Current Limit v.s. Temperature
(Vcc=12V,Vfb=0V)
3.5
Saturation Voltage (V)
1.2
1.1
1
0.9
0.8
0.7
-50
-25
0
25
50
75
100
125
1A
0.5A
1.5A
Switch Current Limit (A)
3
2.5
2
-50
-30
-10
10
30
50
70
90
Temperature (TA) (°C)
Temperature (TA) (°C)
AP1515 Supply Current v.s. Temperature
(Vcc=12V , No Load ,Von/off =0V(Switch ON) ,Von/off =5V(Switch OFF))
15
14
13
12
11
10
9
8
7
6
5
60
Supply Current (mA)
Supply Current (uA)
55
50
45
40
35
30
-50 -30 -10 10
30
50
70
90 110 130 150
Switch OFF
Switch ON
-50 -30 -10 10
30
50
70
90 110 130 150
Temperature (TA) (°C)
Temperature (TA) (°C)
AP1515 Frequency v.s. Temperature
(Vcc=12V , Io=500mA ,Vout=5V)
170
AP1515 Feedback Current v.s. Temperature
(Vcc=12V , Vout=5V,Vfb=1.3V)
10
Frequency (KHz)
160
155
150
145
140
-50 -30 -10
10
30
50
70
90 110 130 150
Feedback Current (nA)
165
0
-10
-20
-30
-40
-50
-50 -30 -10 10
30
50
70
90 110 130 150
Temperature (TA) (°C)
Temperature (TA) (°C)
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Oct 24, 2005
6/9
ANACHIP [ ANACHIP CORP ]
