MAX797ESE+ Maxim Integrated Products, MAX797ESE+ Datasheet - Page 14

• Manufacturer Part Number: MAX797ESE+
• Description: IC CNTRLR STEP DOWN 16-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX797ESE+

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V, 5V, Adj
• Current - Output: 10A
• Frequency - Switching: 150kHz, 300kHz
• Voltage - Input: 4.5 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Power - Output: 696mW
• Output Voltage: 2.5 V to 6 V
• Input Voltage: 5 V to 30 V
• Supply Current: 2 uA
• Switching Frequency: 300 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Step-Down Controllers with
Synchronous Rectifier for CPU Power
Figure 3. PWM Controller Detailed Block Diagram
14
(MAX797
–100mV
SECFB
ONLY)
SHDN
SKIP
______________________________________________________________________________________
SS
GND (MAX799)
REF (MAX796)
30mV
REF
4µA
NOTE 1
SLOPE COMP
N
2.5V
MAIN PWM
COMPARATOR
SINGLE-SHOT
24R
1R
RECTIFIER CONTROL
MAX796, MAX799 ONLY
1µs
SYNCHRONOUS
VL
R
S
Q
CURRENT
LIMIT
1X
R
S
Q
NOTE 1: COMPARATOR INPUT POLARITIES
OSC
ARE REVERSED FOR THE MAX799.
THROUGH
CONTROL
SHOOT-
LEVEL
SHIFT
LEVEL
SHIFT
CSH
CSL
FROM
FEEDBACK
DIVIDER
BST
DH
LX
VL
DL
PGND