AP451 Diodes, Inc., AP451 Datasheet - Page 4

• Manufacturer Part Number: AP451
• Description: 2 Channel Linear Controller With Independent Enable Function
• Manufacturer: Diodes, Inc.

2 Channel Linear Controller with Independent Enable Function
(2) BJT
(3) BJT with MLCC
(4) MOSFET with MLCC
Anachip Corp.
www.anachip.com.tw
Vout1=1.8V
Vout1=1.8V
Vout1=1.8V
Typical Application Circuit
Vc1
Vc1
Vc1
22u
C7
C10
10u
C10
10u
22u
100u
C10
100u
C7
C7
C6
0.1u
Vin
Vin
AF9410N
C13
10u
100u
Vin
C13
AT882D
AT882D
C13
10u
C11
0.1u
C6
C11
0.1u
0.1u
R3
270
R4
220
0.1u
C6
C11
0.1u
Q3
6.8n
C1
Q2
R3
270
R4
220
Q2
C14
0.1u
R3
270
R4
220
C14
0.1u
C14
0.1u
6.8n
RB2
C1
0
RB2
0
RB2
10K
0
RG2
1
2
3
4
1
2
3
4
1
2
3
4
OUT1
EN1
SGND
FB1
OUT1
FB1
EN1
SGND
100K
100K
R5
0.1u
R5
C3
C3
0.1u
AP451
AP451
OUT1
EN1
SGND
FB1
100K
R5
C3
0.1u
AP451
OUT2
OUT2
EN2
EN2
FB2
FB2
4/9
Vcc
Vcc
OUT2
EN2
FB2
Vcc
8
7
6
5
8
7
6
5
8
7
6
5
RB1
0.22u
100K
0.22u
0
100K
C12
C12
RG1
10K
R6
RB1
0.22u
R6
100K
C2
6.8n
RB1
C12
0
R6
0
180
390
R2
180
R1
390
R2
R1
Q1
Q1
C2
6.8n
0.1u
100u
AT882D
AT882D
0.1u
C4
C8
10u
C4
C8
390
180
R1
R2
Q4
AF9410N
0.1u
10u
C8
C4
C5
100u
C9
0.1u
Rev. 1.0 Jun 30, 2005
C5
22u
C9
0.1u
AP451
Vout2=2.5V
Vc2
Vout2=2.5V
Vc2
C5
22u
C9
0.1u
Vout2=2.5V
Vc2