AP6508 Datasheet, PDF (5/14 Pages) Diodes Incorporated – 500kHz 21V 3A SYNCHRONOUS DC/DC BUCK CONVERTER

AP6508
500kHz 21V 3A SYNCHRONOUS DC/DC BUCK CONVERTER
Typical Performance Characteristics
1.3
16
14
1.25
12
1.2
10
1.15
8
6
1.1
4
1.05
2
1
0
5
10
15
20
25
INPUT VOLTAGE
Quiescent Supply Current vs. Input Voltage
5.05
5.045
0
0
5
10
15
20
25
INPUT VOLTAGE (V)
Shutdown Supply vs. Input Voltage
7
6.8
V_IN = 12V
V_OUT = 1.2V
6.6
5.04
6.4
6.2
5.035
6
5.8
5.03
5.6
5.025
5.02
0
1.225
5
10
15
20
25
INPUT VOLTAGE (V)
V_CC Regulator Line Regulation
5.4
5.2
5
-20 -10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (°C)
Current Limit vs. Temperature
1.21
1.2245
1.224
1.2235
1.223
1.2225
1.222
1.2215
1.221
1.208
1.206
1.204
1.202
1.2
1.198
1.196
V_IN = 12V
V_IN = 5V
1.2205
1.22
0
5
10
15
20
25
INPUT VOLTAGE (V)
Line Regulation vs. Output Current
1.194
1.192
0
AP6508
Document number: DS33437 Rev. 4 - 2
5 of 14
www.diodes.com
0.5 1 1.5 2 2.5 3
OUTPUT CURRENT (A)
Load Regulation vs. Output Current
July 2011
© Diodes Incorporated