Datasheet

MAX16932/MAX16933
2.2MHz, 36V, Dual Buck
with 20µA Quiescent Current
6Maxim Integrated
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
SWITCHING FREQUENCY
vs. LOAD CURRENT
MAX16932 toc07
LOAD CURRENT (A)
SWITCHING FREQUENCY (MHz)
54321
2.12
2.14
2.16
2.18
2.20
2.22
2.24
2.26
2.28
2.30
2.10
0 6
BUCK 1
BUCK 2
SWITCHING FREQUENCY
vs. R
FOSC
(MAX16932)
R
FOSC
(kI)
SWITCHING FREQUENCY (MHz)
15 25 30
2.4
2.2
2.0
1.8
1.6
1.4
1.2
0
0 20
MAX16932 toc08
V
BIAS
= 3.3V
V
BIAS
= 5V
SWITCHING FREQUENCY
vs. R
FOSC
(MAX16933)
MAX16932 toc09
R
FOSC
(kI)
SWITCHING FREQUENCY (MHz)
160
150130
14060
70
80
90
100
110
12040
50
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
0.2
30 170
V
BIAS
= 5V
V
BIAS
= 3.3V
SWITCHING FREQUENCY vs. TEMPERATURE
TEMPERATURE (°C)
SWITCHING FREQUENCY (MHz)
20 40 80 120
-20-40 0 60 100 140
2.10
2.05
2.30
2.25
2.15
2.35
2.20
2.40
2.00
-60
MAX16932 toc10
R
FOSC
= 13.7kI
EXTERNAL SYNC TRANSITION
MAX16932 toc12
V
LX1
10V/div
V
LX2
10V/div
V
SYNC
2V/div
400ns/div
LOAD TRANSIENT RESPONSE
MAX16932 toc11
V
OUT1
100mV/div
I
OUT1
1A/div
400µs/div
DIPS AND DROPS
MAX16932 toc13
V
BAT
10V/div
V
PGOOD1
5V/div
V
OUT1
5V/div
40ms/div