MAX797ESE+ Maxim Integrated Products, MAX797ESE+ Datasheet - Page 8

• 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
8
(T
____________________________Typical Operating Characteristics (continued)
A
1050
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
900
750
600
450
300
150
0
vs. SUPPLY VOLTAGE, 3.3V/5V CIRCUIT
0
PULSE-WIDTH-MODULATION MODE WAVEFORMS
I
CIRCUIT OF FIGURE 1
LOAD
MAXIMUM SECONDARY CURRENT
3
= 1A, V
6
SUPPLY VOLTAGE (V)
IN
= 16V,
9
MAX796
CIRCUIT OF FIGURE 12
TRANSFORMER = TDK 1.5:1
V
SEC
I
OUT
12
≥ 4.8V
I
(MAIN) = 2A
OUT
500ns/div
15
(MAIN) = 0A
18
21
24
V
IN
= 15V, CIRCUIT OF FIGURE 1
+5V LOAD-TRANSIENT RESPONSE
+5V OUTPUT
VOLTAGE
50mV/div
LX VOLTAGE
10V/div
200µs/div
I
CIRCUIT OF FIGURE 1
LOAD
800
600
500
400
300
200
100
700
0
3A
0A
+5V OUTPUT
50mV/div
= 100mA, V
LOAD CURRENT
0
vs. SUPPLY VOLTAGE, ±5V CIRCUIT
MAXIMUM SECONDARY CURRENT
IDLE-MODE WAVEFORMS
4
IN
= 10V,
8
SUPPLY VOLTAGE (V)
200µs/div
12
MAX799
CIRCUIT OF FIGURE 13
TRANSFORMER = TTI5926
V
SEC
16
I
OUT
I
≤ -5.1V
OUT
(MAIN) = 1A
20
(MAIN) = 0A
24
28
32
+5V OUTPUT
50mV/div
2V/div