SIC401A Datasheet, PDF (7/28 Pages) Vishay Siliconix – 15 A microBUCK SiC401A/B Integrated Buck Regulator with Programmable LDO

ELECTRICAL CHARACTERISTICS
100
5
VIN=12V
95
VIN=5V
4.5
90
4
85
3.5
VIN=17V
80
3
75
2.5
70
2
VIN=12V
65
VIN=17V
1.5
60
1
55
VIN=5V
0.5
50
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IOUT (A)
Effiency/Power Loss vs. Load P-Save
(V_DD = 3.3 V, V_OUT = 1.5 V, SiC401B)
100
5
VIN=5V
95
VIN=12V
4.5
90
4
85
3.5
80
VIN=17V
3
75
2.5
70
2
VIN=12V
65
1.5
VIN=17V
60
1
55
VIN=5V
0.5
50
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IOUT (A)
Effiency/Power Loss vs. Load P-Save
(V_DD = 5 V, V_OUT = 1.5 V, SiC401B)
100
5
95 VIN=5V
VIN=12V
4.5
90
4
85
3.5
80
VIN=17V
3
75
2.5
70
VIN=12V
2
65
1.5
VIN=17V
60
1
55
VIN=5V
0.5
50
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IOUT (A)
Effiency/Power Loss vs. Load FCM
(V_DD = 5 V, V_OUT = 1.5 V, SiC401B)
SiC401A, SiC401BCD
Vishay Siliconix
95
0.4
90 PSAVE
0.35
85
0.3
FCM
0.25
80
0.2
75
0.15
70
0.1
65
0.05
FCM minus PSM
60
0
55
-0.05
50
-0.1
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IOUT (A)
Effiency/Power Loss-P-Save vs. FCM
(V_DD = 3.3 V, V_OUT = 1.5 V, V_IN = 12 V, SiC401B)
100
0.4
95
0.35
90 PSAVE
0.3
85
0.25
FCM
80
0.2
75
0.15
70
0.1
65
0.05
FCM minus PSM
60
0
55
-0.05
50
-0.1
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IOUT (A)
Effiency/Power Loss-P-Save vs. FCM
(V_DD = 5 V, V_OUT = 1.5 V, V_IN = 12 V, SiC401B)
100
95
0.35
90 ^{3.3V Bias}
0.25
85
5V Bias
80
0.15
75
70
0.05
65
3.3V minus 5V
60
-0.05
55
50
-0.15
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IOUT (A)
Effiency/Power Loss-P-Save
(V_OUT = 1.5 V, V_IN = 12 V, SiC401B)
Document Number: 63835
For technical questions, contact: [e-mail]
www.vishay.com
S12-2109-Rev. C, 03-Sep-12
7
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000