Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX17036 User Manual
Page 9
Note 3: The equation for the target voltage V
TARGET
is:
V
TARGET
= The slew-rate-controlled version of V
DAC
, where V
DAC
= 0 for shutdown
V
DAC
= V
BOOT
during IMVP-6.5 startup
V
DAC
= V
VID
otherwise (the V
VID
voltages for all possible VID codes are given in Table 4).
In pulse-skipping mode, the output rises by approximately 1.5% when transitioning from continuous conduction to no load.
Note 4: On-time and minimum off-time specifications are measured from 50% to 50% at the DH_ pin, with LX_ forced to 0V, BST_
forced to 5V, and a 500pF capacitor from DH_ to LX_ to simulate external MOSFET gate capacitance. Actual in-circuit times
might be different due to MOSFET switching speeds.
Note 5: Specifications to -40°C and +105°C are guaranteed by design, not production tested.
MAX17030/MAX17036
1/2/3-Phase Quick-PWM
IMVP-6.5 VID Controllers
_______________________________________________________________________________________
9
EFFICIENCY vs. LOAD CURRENT
(V
OUT(HFM)
= 0.95V)
MAX17030 toc01
LOAD CURRENT (A)
EFFICIENCY (%)
10
1
30
40
50
60
70
80
90
100
20
0.1
100
12V
20V
7V
OUTPUT VOLTAGE vs. LOAD CURRENT
(V
OUT(HFM)
= 0.95V)
MAX17030 toc02
LOAD CURRENT (A)
OUTPUT VOLTAGE (V)
50
60
20
30
40
0.85
0.90
0.95
1.00
0.80
0
10
70
EFFICIENCY vs. LOAD CURRENT
(V
OUT(LFM)
= 0.875V)
MAX17030 toc03
LOAD CURRENT (A)
EFFICIENCY (%)
10
1
60
70
80
90
50
0.1
100
12V
20V
7V
SKIP MODE
PWM MODE
OUTPUT VOLTAGE vs. LOAD CURRENT
(V
OUT(LFM)
= 0.875V)
MAX17030 toc04
LOAD CURRENT (A)
OUTPUT VOLTAGE (V)
15
5
10
0.84
0.85
0.87
0.86
0.88
0.89
0.90
0.83
0
20
2-PHASE PWM MODE
1-PHASE SKIP MODE
SWITCHING FREQUENCY
vs. LOAD CURRENT
MAX17030 toc05
LOAD CURRENT (A)
SWITCHING FREQUENCY (kHz)
30
10
20
100
50
150
250
200
300
350
400
0
0
50
40
V
OUT(HFM)
= 0.95V
V
OUT(LFM)
= 0.875V
DPRSLPVR = V
CC
DPRSLPVR = GND
V
OUT(HFM)
= 0.95V NO-LOAD
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX17030 toc06
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
15
9
12
0.1
1
10
100
1000
0.01
6
21
18
I
IN
I
IN
I
CC
+ I
DD
I
CC
+ I
DD
DPRSLPVR = V
CC
DPRSLPVR = GND
Typical Operating Characteristics
(Circuit of Figure 1. V
IN
= 12V, V
CC
= V
DD
= 5V, SHDN = V
CC
, D0–D6 set for 0.95V, T
A
= +25°C, unless otherwise specified.)
ELECTRICAL CHARACTERISTICS (continued)