Datasheet

MAX15035
15A Step-Down Regulator with Internal Switches
12 ______________________________________________________________________________________
C1
1μF
EN
OFFON
V
DD
V
CC
C2
1μF
PGOOD
R10
100kΩ
REFIN
R2
54.9kΩ
R4
40.2kΩ
RT
60.4kΩ
NTC
10kΩ
B = 3435
R5
49.4kΩ
BST
LX
C
BST
0.1μF
L1
C
OUT
TON
R3
97.6kΩ
GND/OPEN/REF/V
DD
PGND
FB
ILIM
HILO
REF
R
TON
200kΩ
AGND
AGND
PWR
PWR
PWR
AGND
AGND
AGND
2
34
36
4
37
18–26, EP3
30
6–15
AGND
38
SKIP
35
32
33
OUTPUT
1.05V/1.50V
15A (MAX)
INPUT
7V TO 24V
5V BIAS
SUPPLY
MAX15035
C
IN
PWR
C3
1000pF
R1
49.9kΩ
5, 16, EP2
29
IN
3, 28, EP1
PWR
Figure 1. MAX15035 Standard Application Circuit
SEE TABLE 1 FOR COMPONENT SELECTION.
Table 1. Component Selection for Standard Applications
V
OUT
= 1.5V/1.05V AT 15A
(FIGURE 1)
V
OUT
= 3.3V AT 6A
(FIGURE 6)
V
OUT
= 1.5V/1.05V AT 10A
(FIGURE 1)
COMPONENT
V
IN
= 7V to 20V
TON = 200kΩ (300kHz)
V
IN
= 7V to 20V
TON = 332kΩ (300kHz)
V
IN
= 5V to 12V
TON = 100kΩ (600kHz)
Input Capacitor
(3x) 10μF, 25V
Taiyo Yuden TMK432BJ106KM
(2x) 10μF, 25V
Taiyo Yuden TMK432BJ106KM
(3x) 10μF, 25V
Taiyo Yuden TMK432BJ106KM
Output Capacitor
(2x) 330μF, 6mΩ, 2V
Panasonic EEFSX0D331XR
(1x) 330μF, 18mΩ, 4V
SANYO 4TPE330MI
(1x) 470μF, 7mΩ, 2.5V
SANYO 2R5TPLF470M7
Inductor
1.0μH, 5.3mΩ, 27.5A
Vishay IHLP4040DZER1R0
1.5μH, 14mΩ, 9A
NEC TOKIN MPLC1040L3R3
0.47μH, 3.7mΩ, 15A
Cooper FP3-R47-R
Table 2. Component Suppliers
SUPPLIER WEBSITE
AVX Corp. www.avxcorp.com
BI Technologies www.bitechnologies.com
Cooper Bussmann www.cooperet.com
KEMET Corp. www.kemet.com
Murata Mfg. Co., Ltd. www.murata.com
NEC TOKIN Corp. www.nec-tokin.com
Panasonic Corp. www.panasonic.com
SUPPLIER WEBSITE
Pulse Engineering www.pulseeng.com
SANYO NA Corp. www.sanyo.com
Sumida Corp. www.sumida.com
Taiyo Yuden www.t-yuden.com
TDK Corp.
www.component.tdk.com
TOKO America, Inc. www.tokoam.com
V i shay www.vishay.com
Wür th E l ectr oni k Gm b H & C o. KG
www.we-online.com