Datasheet

P
li
Input idling power
(no load)
Default confi gura-
tion: Continues
Conduction Mode,
CCM
V
O
= 0.6 V 0.95
W
V
O
= 1.0 V 0.95
V
O
= 1.8 V 1.22
V
O
= 3.3 V 1.88
DCM, Discontin-
ues Conduction
Mode
(diode emulation)
V
O
= 0.6 V 0.21
W
V
O
= 1.0 V 0.21
V
O
= 1.8 V 0.21
V
O
= 3.3 V 0.21
DCM with
Minimum Pulse
Enabled
V
O
= 0.6 V 0.43
W
V
O
= 1.0 V 0.46
V
O
= 1.8 V 0.54
V
O
= 3.3 V 0.67
P
CTRL
Input standby
power
Turned off with
CTRL-pin
Default confi gura-
tion:
Monitoring
enabled
170 mW
Pulse monitor
mode:
Monitoring
disabled
109 mW
Low power mode:
Monitoring
disabled
85 mW
V
tr1
Load transient
peak voltage
deviation
Load step
25-75-25% of
maxI
O
Default confi gura-
tion
di/dt = 2 A/s
C
O
= 470 F
V
O
= 0.6 V 300
mV
V
O
= 1.0 V 300
V
O
= 1.8 V 305
V
O
= 3.3 V 315
DLC and
Optimized NLR
confi guration
di/dt = 2 A/s
C
O
= 470 F
V
O
= 0.6 V 100
mV
V
O
= 1.0 V 100
V
O
= 1.8 V 100
V
O
= 3.3 V 100
t
tr1
Load transient
recovery time
Load step
25-75-25% of
maxI
O
Default confi gu-
ration
di/dt = 2 A/s
C
O
=470 F
V
O
= 0.6 V 100
µs
V
O
= 1.0 V 100
V
O
= 1.8 V 100
V
O
= 3.3 V 100
DLC and
Optimized NLR
confi guration
di/dt = 2 A/s
C
O
= 470 F
V
O
= 0.6 V 50
V
O
= 1.0 V 50
V
O
= 1.8 V 50
V
O
= 3.3 V 50
Efficiency vs. Output Current and Switching frequency
Efficiency vs. load current and switching frequency at
T
P1
= +25 °C, V
I
= 12 V, V
O
= 1.0 V, C
O
= 470 µF/10 mΩ
Default configuration except changed frequency
70
75
80
85
90
95
00102
03 40
[%]
50
[A]
kHz
200
320
kHz
kHz
480
640
kHz
Power Dissipation vs. Output Current and Switching frequency
Dissipated power vs. load current and switching frequency at
T
P1
= +25 °C, V
I
= 12 V, V
O
= 1.0 V, C
O
= 470 µF/10 mΩ
Default configuration except changed frequency
0
2
4
6
8
10
12
0 10 02030450
[W]
[A]
200
kHz
320
kHz
480
kHz
kHz
640
Load transient vs. Switching frequency
Load transient peak voltage deviation vs. frequency.
Step-change (12.5-37.5-12.5 A).
T
P1
= +25 °C, V
I
= 12 V, V
O
=1.0 V, C
O
= 470 µF/10 mΩ
0
100
200
300
400
500
600
200 300 400 500 600
[mV]
[kHz]
No NLR
Universal PID,
DLC,
No NLR
Default NLR
Universal PID,
DLC,
Default NLR
Universal PID,
DLC,
Opt. NLR
Opt. NLR
OKDx-T/50-W12-C
50A Digital PoL DC-DC Converter Series
MDC_OKDx-T/50-W12-C.A04 Page 27 of 41
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