MAX1631EAI Maxim Integrated Products, MAX1631EAI Datasheet - Page 12

• Manufacturer Part Number: MAX1631EAI
• Description: IC PS CTRLR FOR NOTEBOOKS 28SSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1631EAI

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V, 5V, Adj
• Current - Output: 4A
• Frequency - Switching: 200kHz, 300kHz
• Voltage - Input: 4.2 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Power - Output: 762mW
• Output Voltage: 2.5 V to 5.5 V, 3.3 V, 5 V
• Input Voltage: 4.2 V to 30 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Case: SSOP
• Dc: 98+
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
Figure 3. PWM Controller Detailed Block Diagram
12
-100mV
SECFB
SHDN
SKIP
______________________________________________________________________________________
30mV
REF
REF
SOFT-START
COUNTER
SLOPE COMP
DAC
MAIN PWM
COMPARATOR
CK
SINGLE-SHOT
RECTIFIER CONTROL
1μs
SYNCHRONOUS
R
S
Q
CURRENT
LIMIT
1X
R
S
Q
OSC
THROUGH
CONTROL
SHOOT-
LEVEL
SHIFT
LEVEL
SHIFT
CSH_
CSL_
FROM
FEEDBACK
DIVIDER
BST_
DH_
LX_
VL
DL_
PGND