UCD7242 Datasheet, PDF (8/32 Pages) Texas Instruments – Digital Dual Synchronous-Buck Power Driver

UCD7242
SLUS962 – JANUARY 2010
www.ti.com
TYPICAL CHARACTERISTICS
Inductor used in the following plots is a 0.47mH BI Technologies inductor (HM72A). All data taken at room ambient.
UCD7242
90
85
80
75
0
3
2.5
2
1.5
1
0.5
0
0
V_O = 3.3 V, f_s = 500 kHz, V_I = 8 V
V_O = 3.3 V, f_s = 750 kHz, V_I = 8 V
V_O = 3.3 V, f_s = 1 MHz, V_I = 8 V
V_O = 2 V, f_s = 500 kHz, V_I = 8 V
V_O = 2 V, f_s = 750 kHz, V_I = 8 V
V_O = 2 V, f_s = 1 MHz, V_I = 8 V
V_O = 1.2 V, f_s = 500 kHz, V_I = 8 V
V_O = 1.2 V, f_s = 750 kHz, V_I = 8 V
V_O = 1.2 V, f_s = 1 MHz, V_I = 8 V
2
4
6
8
10
Load - A
Figure 2.
UCD7242
V_O = 3.3 V, f_s = 500 kHz, V_I = 8 V
V_O = 3.3 V, f_s = 750 kHz, V_I = 8 V
V_O = 3.3 V, f_s = 1 MHz, V_I = 8 V
V_O = 2 V, f_s = 500 kHz, V_I = 8 V
V_O = 2 V, f_s = 750 kHz, V_I = 8 V
V_O = 2 V, f_s = 1 MHz, V_I = 8 V
V_O = 1.2 V, f_s = 500 kHz, V_I = 8 V
V_O = 1.2 V, f_s = 750 kHz, V_I = 8 V
V_O = 1.2 V, f_s = 1 MHz, V_I = 8 V
2
4
6
8
10
Load - A
Figure 3.
8
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