Owner's manual

AP3591
Document number: DS36906 Rev. 1 - 2
2 of 18
www.diodes.com
March 2014
© Diodes Incorporated
AP3591
NEW PROD UC T
A Product Line of
Diodes Incorporated
Typical Applications Circuit
VDDP
BOOT
UGATE
LGATE
PHASE
VOUT
PGOOD
EN/DEM
FB
AP3591
13
14
12
9
5
4
GND
7
L
1.0
C
4
220
mF
R1
C2
C1
10
mF
TON
Q2
Q1
C3
0.1mF
R3
PGND
VDD
VDDP
CCM/ DEM
CS
mH
1
2
3
6
8
10
11
1
mF
C
Optional
10
R2
100K
250K
R4
18K
12K
R5
R6
30K
V
OUT
=1.05V
=12V
V
IN
BOM
Symbol
Value
Description
Manufacturer
Part Number
C1
10µF/25V
ESR < 4mΩ @400kHz
Murata
GRM31CR61E106KA12
C4
220µF/6.3V
ESR < 9mΩ @300kHz
Sanyo
6SVPE220M
L
1.0µH
DCR < 4mΩ, I
MAX
= 24A
Vishay
IHLP5050CEER1R0M01
Q1
N-MOSFET
I
DMAX
= 30A, R
DS(ON)
=
Infineon
BSC119N03S
Q2
N-MOSFET
I
DMAX
= 30A, R
DS(ON)
=
Infineon
BSC119N03S