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ER2120QI Datasheet, PDF (10/24 Pages) Altera Corporation – 2A Synchronous Buck Regulator with Integrated MOSFETs
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Page 10
Typical Performance Curves VIN = 12V, VOUT = 2.5V, IO = 2A, fSW = 500kHz, L = 4.7µH, CIN = 20µF,
COUT = 100µF + 22µF, TA = +25° C, unless otherwise noted. (Continued)
2.5
2.5
2.0
2.0
1.5
14VIN
1.0
1.5
14VIN
1.0
0.5
5VIN
0.0
0
9VIN
1
2
OUTPUT LOAD (A)
FIGURE 17. POWER DISSIPATION vs LOAD (VOUT = 1.8V, 500kHz)
2.5
0.5
5VIN
0.0
0
9VIN
1
2
OUTPUT LOAD (A)
FIGURE 18. POWER DISSIPATION vs LOAD (VOUT = 2.5V, 500kHz)
2.5
2.0
1.5
14VIN
2.0
1.5
14VIN
1.0
1.0
0.5
0.0
0
9VIN
5VIN
1
2
OUTPUT LOAD (A)
FIGURE 19. POWER DISSIPATION vs LOAD (VOUT = 3.3V, 500kHz)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5 0
50
100
150
200
250 300
IAVIN (mA)
FIGURE 21. VAVIN LOAD REGULATION
0.5
7VIN
0.0
0
9VIN
1
2
OUTPUT LOAD (A)
FIGURE 20. POWER DISSIPATION vs LOAD (VOUT = 5V, 500kHz)
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
3
NO LOAD
100mA LOAD
4 5 6 7 8 9 10 11 12 13
VIN (V)
FIGURE 22. VAVIN REGULATION vs VIN
14 15
ER2120QI 2A Synchronous Buck Regulator with Integrated MOSFETs
09615
March 14, 2014
March 2014 Altera Corporation
Rev A
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