MAX8599 Maxim Integrated Products, MAX8599 Datasheet - Page 15

• Manufacturer Part Number: MAX8599
• Description: Low-Dropout Wide-Input-Voltage Step-Down Controllers
• Manufacturer: Maxim Integrated Products

Figure 3. MAX8597 1MHz Tracking Supply with Clamp (Output voltage tracks V REFIN from 0V up to the nominal output regulation
voltage.)
Figure 4. MAX8598/MAX8599 500kHz, 1.2V, 20A Output Power Supply
OFF
10kΩ
OFF
POK
1800pF
R6
R5
12.1kΩ
1.2kΩ
C8
______________________________________________________________________________________
R6
V
V
IN
1000pF
IN
ON
6.98kΩ
(10.8V TO 13.2V)
390Ω
ON
(10.8V TO 13.2V)
C10
R5
R7
REFIN
EN
EN
12.1kΩ
R4
16kΩ
R7
100kΩ
0.033µF
5.6kΩ
18.2kΩ
70kΩ
C4
CMPD914
R3
R4
R3
R8
6800pF
39pF
AVL
C8
C9
D2
8200pF
56pF
C9
Low-Dropout, Wide-Input-Voltage,
C8
16
2200pF
3
4
5
AVL
C6
POK
SS
FB
COMP
19
20
18
C4
1000pF
GND
4
5
2
40.2kΩ
6
EN
AIN-
AIN+
SS
AOUT
FB
0.22µF
R1
COMP
C10
REFIN EN FREQ
6
2
20kΩ
15
FREQ
AVL
R1
1
MAX8598
MAX8599
GND
3
7
R11
0.22µF
3Ω
10Ω
R8
17
C11
MAX8597
7
V+
AVL
R12
1
3Ω
1µF
C1
8
VL
VL
9
V+
10Ω
4.7µF
R9
C11
14
ILIM
10
PGND
1µF
C1
REFO
8
BST
DH
DL
LX
16
ILIM
C12
1µF
11
12
13
9
10
PGND
VL
BST
CMDSH-3
DH
DL
LX
R16
Step-Down Controllers
3Ω
13
14
15
11
12
VL
D1
CMDSH-3
4.7µF
C13
VL
R16
3Ω
HAT2165H
2.26kΩ
D1
C5
0.22µF
Q2
Design Procedure (continued)
R2
VL
C5
0.22µF
1.5kΩ
IRF7807Z
IRF7821
Q1
R2
Q2
C3
0.01µF
HAT2168H
HAT2165H
C3
0.01µF
Q1
Q3
10µF
10µF
10µF
C2A
C2B
C2C
R10
2Ω
C14
2200pF
0.56µH
L1
100µF
10µF
10µF
C7A
C2A
C2B
R9
3Ω
C12
2200pF
0.7µH
L1
470µF
C7A
C7B
100µF
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1.8V/10A
V
C7B
470µF
OUT
1.2V/20A
V
OUT
15