Datasheet

MAX17497A/MAX17497B
AC-DC and DC-DC Peak Current-Mode Converters
with Integrated Step-Down Regulator
9Maxim Integrated
Typical Operating Characteristics (continued)
(V
IN
= +15V, V
EN/UVLO
= +2V, COMPF = open, C
IN
= 1FF, C
VCC
= 1FF, T
A
= T
J
= -40NC to +125NC, unless otherwise noted. Typical
values are at T
A
= +25NC.)
V
OUTB
vs. LOAD CURRENT
MAX17497A/B toc22
LOAD CURRENT, I
OUTB
(A)
V
OUTB
VOLTAGE (V)
3.310
3.315
3.320
3.325
3.33
00.1 0.20.3 0.40.5 0.6
BODE PLOT (BUCK REGULATOR)
MAX17497A/B toc24
0dBm
67891234567891 234
GAIN
10dB/div
PHASE
36°/div
BW = 110kHz
PM = 57°
EFFICIENCY vs. LOAD CURRENT
(BUCK REGULATOR)
LOAD CURRENT (A)
EFFICIENCY (%)
0.50.40.30.20.1
10
20
30
40
50
60
70
80
90
100
0
0 0.6
MAX17497A/B toc26
V
INB
= 15V
LOAD STEP ON BUCK REGULATOR
(3.3V OUTPUT)
MAX17497A/B toc23
1ms/div
V
OUTB
50mV/div
I
LOAD
0.2A/div
EFFICIENCY GRAPH vs. LOAD CURRENT
(FLYBACK CONVERTER)
MAX17497A/B toc25
LOAD CURRENT (A)
EFFICIENCY (%)
0
10
20
30
40
50
60
70
80
90
100
00.2 0.40.6 0.81.0 1.21.4
V
DC
= 310V