IP2003 International Rectifier, IP2003 Datasheet - Page 5

• Manufacturer Part Number: IP2003
• Description: IC BLOCK PWR MULTIPHASE 40A LGA
• Manufacturer: International Rectifier
• Series: iPOWIR™r
• Type: Step-Down (Buck)r

Specifications of IP2003

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 3.3 V
• Current - Output: 40A
• Frequency - Switching: 300kHz ~ 1MHz
• Voltage - Input: 3 ~ 13.2 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: Power Block (LGA)
• Power - Output: 9.4W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *IP2003

To calculate power loss for a given set of operating conditions, the following procedure should be followed:
Determine the maximum current for each iP2003 and obtain the maximum power loss from Fig 1. Use the curves in
Figs. 3, 4, 5 and 6 to obtain normalized power loss values that match the operating conditions in the application. The
maximum power loss under the operating conditions is then the product of the power loss from Fig. 1 and the normal-
ized values.
To calculate the SOA for a given set of operating conditions, the following procedure should be followed:
Determine the maximum PCB temperature and Case temperature at the maximum operating current of each iP2003.
Obtain the SOA temperature adjustments that match the operating conditions in the application from Figs. 3, 4, 5 and
6. Then, add the sum of the SOA temperature adjustments to the Tx axis intercept in Fig 2.
The example below explains how to calculate maximum power loss and SOA.
≈
≈
≈
≈
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
0
0
10
10
V
f
SW
V
OUT
L=0.3uH
IN
= 1MHz
= 12V
20
= 1.3V
20
30
30
40
40
Case Temperature ( ºC
PCB Temperature (ºC)
50
50
Operating
Safe
Area
60
60
70
70
)
80
80
≈
90
90
100
100
110
110
120
120
T
X