IP1001 Datasheet, PDF (5/18 Pages) International Rectifier – Full Function Synchronous Buck Power Block

iP1001
Typical Performance Curves
1.36
-13
1.00
0
1.30
V_IN = 12V
-11
1.24
I_OUT = 20A
f_sw set to 300kHz
-9
1.18
T_BLK = 125°C
-6
0.97
V_OUT = 1.3V
1
I_OUT = 20A
0.94
f_sw set to 300kHz
T_BLK = 125°C
2
1.12
-4
0.91
3
1.06
-2
0.89
4
1.00
0
0.94
2
0.86
5
0.88
4
0.9 1.3 1.7 2.1 2.5 2.9 3.3
Output Voltage (V)
Fig 3. Normalized Power Loss vs V_OUT
0.83
6
3 4 5 6 7 8 9 10 11 12
Input Voltage (V)
Fig 4. Normalized Power Loss vs V_IN
25
20
V_IN = 5V to 12V
200kHz/300kHz
15
V_IN = 3.3V,
200kHz
10
5
0
0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3
Output Voltage (V)
Fig 5. Recommended Operating Area
For 200kHz frequency setting there will be a
10% power loss reduction and a positive PCB
temperature adjustment of 3°C.
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5