MAX8855ETJ+ Maxim Integrated Products, MAX8855ETJ+ Datasheet - Page 18

• Manufacturer Part Number: MAX8855ETJ+
• Description: IC REG STP DWN DUAL 5A 32-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8855ETJ+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 3.24 V
• Current - Output: 5A
• Frequency - Switching: 500kHz ~ 2MHz
• Voltage - Input: 2.35 ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Power - Output: 2.76W
• Output Current: 5 A
• Input Voltage: 2.35 V to 3.6 V
• Supply Current: 2.8 mA
• Switching Frequency: 2 MHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 5A, 2MHz Step-Down Regulator
Figure 7. Tracking DDR Application Circuit
18
OUT1
0.9V/5A
______________________________________________________________________________________
10kΩ
OFF
PWRGD1
EN1
0.1µF
R4
C4
1kΩ
1kΩ
R19
R1
1000pF
OUT2
200Ω
C11
ON
47µF
R8
C18
20kΩ
R15
INPUT 2.5V TO 3.6V
10µF
V
DD
C1
10kΩ
R7
1µH
L1
OPEN
C10
0.1µF
330pF
C3
C9
0.1µF
C6
1000pF
C7
IN1
PGND1
BST1
LX1
COMP1
FB1
REFIN
SS1
PWRGD1
EN1
0.1µF
C16
V
V
DD
DD
EXPOSED PAD
MAX8855
10Ω
R11
VDL
PWRGD2
COMP2
0.22µF
PGND2
FSYNC
BST2
C8
GND
SS2
EN2
LX2
FB2
IN2
PGND2
0.022µF
5kΩ
C12
R5
C17
0.1µF
220pF
C15
C2
0.1µF
OPEN
C14
1µH
L2
27kΩ
R10
C23
10µF
V
OFF
DD
R10
20kΩ
C19
22µF
R9
1kΩ
C13
150pF
ON
PWRGD2
C20
0.1µF OUT2
R13
40.2kΩ
R12
20kΩ
EN2
1.8V/5A