Datasheet

MAX16907
36V, 2.2MHz Step-Down Converter
with Low Operating Current
5Maxim Integrated
Typical Operating Characteristics
(V
SUP
= V
SUPSW
= V
EN
= 14V, V
OUT
= 5V, FB connected to V
OUT
, L1 = 2.2µH (Wurth 744311220), D1 = D360B-13-F (Diodes, Inc.),
T
A
= +25NC, unless otherwise noted.)
SWITCHING FREQUENCY
vs. LOAD CURRENT(5V/2.2MHz)
MAX16907 toc07
LOAD CURRENT (A)
2.5
2.01.51.00.50 3.0
SWITCHING FREQUENCY (MHz)
0.5
1.0
1.5
2.0
2.5
3.0
0
V
IN
= 14V
I
LOAD
= 1.5A
SWITCHING FREQUENCY vs. R
FOSC
MAX16907 toc06
R
FOSC
(kI)
SWITCHING FREQUENCY (MHz)
211815
0.5
1.0
1.5
2.0
2.5
3.0
0
12 24
V
IN
= 14V
I
LOAD
= 1.5A
EFFICIENCY vs. LOAD CURRENT
V
IN
= 14V
MAX16907 toc05
LOAD CURRENT (A)
EFFICIENCY (%)
2.72.41.8 2.10.9 1.2 1.50.60.3 3.0
10
20
30
40
50
60
70
80
90
100
0
D1: B360B-13-F FROM DIODES
L1: WURTH 744311220
3.3V 5V 8V
0.010.0010.00010 0.1
EFFICIENCY vs. LOAD CURRENT
V
IN
= 14V
MAX16907 toc04
LOAD CURRENT (A)
EFFICIENCY (%)
10
20
30
40
50
60
70
80
90
100
0
8V
3.3V
5V
D1: B360B-13-F FROM DIODES
L1: WURTH 744311220
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(5V/2.2MHz)
MAX16907 toc03
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
33.530.023.0 26.512.5 16.0 19.59.0
10
20
30
40
50
60
70
80
90
100
110
120
0
5.5
I
SUP
+ I
SUPSW
SKIP MODE STARTUP BEHAVIOR
(5V/2.2MHz)
MAX16907 toc02
V
IN
V
OUT
V
PGOOD
5V/div
10V/div
2V/div
0V
0V
0V
2ms/div
SUP SHORTED TO SUPSW
PWM MODE STARTUP BEHAVIOR
(5V/2.2MHz)
MAX16907 toc01
V
IN
V
OUT
I
LOAD
V
PGOOD
5V/div
10V/div
2V/div
2A/div
0V
0V
0A
0V
2ms/div
SUP SHORTED TO SUPSW