IR3553MTRPBF International Rectifier, IR3553MTRPBF Datasheet - Page 9

• Manufacturer Part Number: IR3553MTRPBF
• Description: The IR3553 integrated PowIRstage is a synchronous buck gate driver IC with co‐packed control and synchronous MOSFETs and Schottky diode.
• Manufacturer: International Rectifier

Specifications of IR3553MTRPBF

• Package: PQFN / 4 x 6
• Iout (a): 40
• 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.
93
92
91
90
89
88
87
86
85
84
83
82
81
80
10
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
10
9
5
5
Figure 8: Typical IR3553 Power Loss
Figure 7: Typical IR3553 Efficiency
15 20 25 30 35 40 45
March 12, 2012 | FINAL DATASHEET
400LFM
200LFM
100LFM
0LFM
10
10
IN
=12V, V
Ambient Temperature (°C)
15
15
Output Current (A)
Output Current (A)
OUT
20
20
=1.2V, ƒ
50 55 60 65 70
25
25
CASE
SW
<= 125°C
= 400kHz, L=150nH (0.29mΩ), VCC=7V, T
30
30
75 80 85 90
35
35
40A Integrated PowIRstage®
40
40
Figure 12: Normalized Power Loss vs. Switching Frequency
Figure 11: Normalized Power Loss vs. Output Voltage
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Figure 10: Normalized Power Loss vs. Input Voltage
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.8
200
5
0.9
6
300
1
7
1.1
400
AMBIENT
8
1.2
Switching Frequency (kHz)
500
Output Voltage (V)
Input 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
IR3553
13
1.8
900
14
1.9
1000
15
2
9.0
7.5
6.0
4.5
3.0
1.5
0.0
-1.5
-3.0
-4.5
-6.0
9.0
7.5
6.0
4.5
3.0
1.5
0.0
-1.5
-3.0
-4.5
-6.0
15
12
9
6
3
0
-3
-6