MAX8686ETL+ Maxim Integrated Products, MAX8686ETL+ Datasheet - Page 15

• Manufacturer Part Number: MAX8686ETL+
• Description: IC BUCK SYNC ADJ 25A 40TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8686ETL+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 5.5 V
• Current - Output: 25A
• Frequency - Switching: 300kHz ~ 1MHz
• Voltage - Input: 4.5 ~ 20 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-TQFN Exposed Pad
• Power - Output: 4W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 3. Single-Phase Application Circuit Operating at V IN = 5V
DC-DC Converter Delivers Up to 25A Per Phase
ENABLE
POWER-
(EN)
115kΩ
10nF
C3
R4
2.2nF
OK
10kΩ
C5
R1
150pF
C4
GFREQ
5.6kΩ
R5
162kΩ
LX
R16
130kΩ
200kΩ
15pF
______________________________________________________________________________________
R2
R3
C2
1μF
C17
0.22μF
330pF
C18
C1
31
32
33
34
35
36
37
38
39
40
POK
FREQ
SS
ILIM
REFIN
PHASE/REFO
COMP
RS+
RS-
BST
10Ω
+
R13
0.22μF
C16
GFREQ
Single/Multiphase, Step-Down,
C15
0.1μF
LX
MAX8686
U1
PGND
PGND
PGND
PGND
PGND
N.C.
LX
IN
IN
IN
20
19
18
17
16
15
14
13
12
11
270Ω
C13
10μF
R11
0.56μH
L11
C12
10μF
270Ω
R14
C14
1μF
4.5V TO 5.5V
C11
10μF
INPUT
C6
220μF
C7
220μF
1.2V/25A
OUTPUT
15