8
dc2194af
DEMO MANUAL DC2194A
Quick start proceDure
Figure 3. Measured Efficiency at 5V
IN
, 800kHz,
Dual Phase Dual Outputs
Figure 7a. Load Transient Response (CH1)
Dual Phase Dual Outputs
Figure 5. Measured Efficiency at 20V
IN
, 800kHz,
Dual Phase Dual Outputs
Figure 4. Measured Efficiency at 12V
IN
, 800kHz,
Dual Phase Dual Outputs
Figure 7b. Load Transient Response (CH2)
Dual Phase Dual Outputs
Figure 6. Measured Efficiency at 12V
IN
, 800kHz,
Dual Phase Single Output
LOAD CURRENT (A)
0
EFFICIENCY (%)
100
65
95
85
75
65
90
80
70
60
50
3
DC2194 F03
4
2
1
1.0V
OUT
1.2V
OUT
1.5V
OUT
1.8V
OUT
2.5V
OUT
3.3V
OUT
LOAD CURRENT (A)
0
EFFICIENCY (%)
95
65
85
75
65
90
80
70
60
50
3
DC2194 F04
4
2
1
1.0V
OUT
1.2V
OUT
1.5V
OUT
1.8V
OUT
2.5V
OUT
3.3V
OUT
LOAD CURRENT (A)
0
EFFICIENCY (%)
95
65
85
75
65
90
80
70
60
50
3
DC2194 F05
4
2
1
1.2V
OUT
1.5V
OUT
1.8V
OUT
2.5V
OUT
LOAD CURRENT (A)
0
EFFICIENCY (%)
95
65
85
75
65
90
80
70
60
50
DC2194 F06
8
6
4
2
5
7
3
1
1.0V
OUT
1.2V
OUT
1.5V
OUT
1.8V
OUT
2.5V
OUT
3.3V
OUT
50µs/DIV
V
OUT
50mV/DIV
I
LOAD
2A/DIV
DC2194 F07a
V
O_P-P
= 86mV
2A TO 4A
f
SW
= 800kHz
V
IN
= 12V, V
OUT
= 1.8V
I
LOAD
STEP = 2A TO 4A AT 2A/µs
C
OUT_POSCAP
= 1×150µF/4V/7mΩ
C
OUT_CERAMIC
= 1×22µF/10V/X7R/1206
C
FF
= 220pF
50µs/DIV
V
OUT
50mV/DIV
I
LOAD
2A/DIV
DC2194 F07b
V
O_P-P
= 67mV
2A TO 4A
f
SW
= 800kHz
V
IN
= 12V, V
OUT
= 1.2V
I
LOAD
STEP = 2A TO 4A AT 2A/µs
C
OUT_POSCAP
= 1×150µF/4V/7mΩ
C
OUT_CERAMIC
= 1×22µF/10V/X7R/1206
C
FF
= 220pF
