Texas Instruments High Performance Dual Output Synchronous Buck Evaluation Module using the TPS51220A TPS51220AEVM-476 TPS51220AEVM-476 Datenbogen
Produktcode
TPS51220AEVM-476
1
10
100
1000
Frequency - kHz
-40
-10
10
40
-30
-20
0
20
30
G
a
in
-
d
B
-45
0
90
135
45
P
h
a
s
e
-
o
Gain
Phase
1
10
100
1000
Frequency - kHz
-40
-10
10
40
-30
-20
0
20
30
G
a
in
-
d
B
-45
0
90
135
45
P
h
a
s
e
-
o
Gain
Phase
Performance Data and Typical Characteristic Curves
7.3
Bode Plot
Figure 8. CCM mode 5-V Loop Response Gain and
Figure 9. CCM mode 3.3-V Loop Response Gain and
Phase, f
CO
= 95 kHz, PM = 48
°
Phase, f
CO
= 90 kHz, PM = 63
°
7.4
Transient Response
Figure 10. 5-V CCM Mode Load Transient
Figure 11. 5-V D-CAP Mode Load Transient
12
High Performance Dual Output Synchronous Buck EVM
SLUU381A
–
September 2009
–
Revised May 2011
Copyright
©
2009
–
2011, Texas Instruments Incorporated