IR3550MTRPBF International Rectifier, IR3550MTRPBF Datasheet - Page 9

• Manufacturer Part Number: IR3550MTRPBF
• Description: The IR3550 integrated PowIRstage is a synchronous buck gate driver IC with co-packed control and synchronous MOSFETs and Schottky diode.
• Manufacturer: International Rectifier

Specifications of IR3550MTRPBF

• Package: PQFN / 6 x 6
• Iout (a): 60
• Switch Freq (khz): up to 1.0MHz
• Input Range (v): 4.5 - 15
• Output Range (v): 0.25 - (VCC -2.5)

TYPICAL OPERATING CHARACTERISTICS
Circuit of Figure 32, V
8-layer PCB board of 3.7” (L) x 2.6” (W), no PWM controller loss, no inductor loss, unless specified otherwise.
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
10
65
60
55
50
45
40
35
30
25
20
15
10
9
8
7
6
5
4
3
2
1
0
5
0
0
0
0
Figure 9: Safe Operating Area, T
5
5
5
10
9
Figure 8: Typical IR3550 Power Loss
Figure 7: Typical IR3550 Efficiency
10
15 20 25 30 35 40 45
10
March 12, 2012 | FINAL DATASHEET
400LFM
200LFM
100LFM
0LFM
15
15
IN
=12V, V
Ambient Temperature (°C)
20
20
Output Current (A)
Output Current (A)
25
25
OUT
=1.2V, ƒ
30
30
50 55 60 65 70
35
35
CASE
SW
<= 125°C
40
40
= 400kHz, L=150nH (0.29mΩ), VCC=7V, T
45
45
75 80 85 90
50
50
60A Integrated PowIRstage®
55
55
Figure 12: Normalized Power Loss vs. Switching Frequency
Figure 11: Normalized Power Loss vs. Output Voltage
1.15
1.10
1.05
1.00
0.95
0.90
0.85
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
Figure 10: Normalized Power Loss vs. Input Voltage
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.8
200
5
0.9
6
300
1
7
1.1
400
AMBIENT
8
Switching Frequency (kHz)
1.2
500
Input Voltage (V)
Output Voltage (V)
9
1.3
= 25°C, no heat sink, no air flow,
1.4
600
10
1.5
11
700
1.6
12
800
1.7
IR3550
13
1.8
900
14
1.9
1000
15
2
6.00
5.25
4.50
3.75
3.00
2.25
1.50
0.75
0.00
-0.75
-1.50
-2.25
6.00
5.25
4.50
3.75
3.00
2.25
1.50
0.75
0.00
-0.75
-1.50
-2.25
2.25
1.50
0.75
0.00
-0.75
-1.50
-2.25