Texas Instruments Evaluation Module for TPS51217 20A Synchronous Step Down Controller with DCAP™ Mode TPS51217EVM-533 TPS51217EVM-533 データシート
製品コード
TPS51217EVM-533
1.15
1.16
1.17
1.18
1.19
1.20
1.21
1.22
1.23
1.24
1.25
6
8
10
12
14
16
18
20
22
V
IN
– Input Voltage – V
V
O
U
T
–
O
u
tp
u
t
V
o
lt
a
g
e
–
V
I
OUT
= 20 A
I
OUT
= 0 A
V
OUT
= 1.2 V
6
8
10
12
14
16
18
20
22
V
IN
– Input Voltage – V
0.85
0.86
0.87
0.88
0.89
0.90
0.91
0.92
0.93
0.94
0.95
I
OUT
= 20 A
V
O
U
T
–
O
u
tp
u
t
V
o
lt
a
g
e
–
V
I
OUT
= 0 A
V
OUT
= 0.9 V
V
(50 mV/div)
OUT
Auto-Skip
V
V
= 20 V,
I
= 1 A-15 A(3A/ s)
IN
OUT
m
t - Time - 100 s/div
m
I
(10 A/div)
IND
I
(10 A/div)
OUT
Performance and Typical Characteristic Curves
www.ti.com
6.3
Line Regulation
Figure 8. Line Regulation at 0.9-V Output
Figure 9. Line Regulation at 1.2-V Output
6.4
Transient Response
Figure 10. Load Transient 0.9-V Output
10
Using the TPS51217EVM-533, High-Performance, Single-Synchronous
SLUU420 – MAY 2010
Step-Down Controller for Notebook Power Supply
Copyright © 2010, Texas Instruments Incorporated