MAX16907 Datasheet, PDF (5/17 Pages) Maxim Integrated Products – 36V, 2.2MHz Step-Down Converter with Low Operating Current

MAX16907
36V, 2.2MHz Step-Down Converter
with Low Operating Current
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.)
PWM MODE STARTUP BEHAVIOR
(5V/2.2MHz)
MAX16907 toc01
SKIP MODE STARTUP BEHAVIOR
(5V/2.2MHz)
MAX16907 toc02
VIN
VOUT
ILOAD
V_PGOOD
SUP SHORTED TO SUPSW
5V/div
0V
2V/div
0V
2A/div
0A
10V/div
0V
VIN
VOUT
V_PGOOD
SUP SHORTED TO SUPSW 5V/div
0V
2V/div
0V
10V/div
0V
2ms/div
2ms/div
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(5V/2.2MHz)
120
110
100
90
80
70
60
50
40
30
20
10 ISUP + ISUPSW
0
5.5 9.0 12.5 16.0 19.5 23.0 26.5 30.0 33.5
SUPPLY VOLTAGE (V)
EFFICIENCY vs. LOAD CURRENT
VIN = 14V
100
90 ^{D1: B360B-13-F FROM DIODES}
L1: WURTH 744311220
80
70
60
3.3V
50
40
8V
5V
30
20
10
0
0
0.0001 0.001
0.01
0.1
LOAD CURRENT (A)
EFFICIENCY vs. LOAD CURRENT
VIN = 14V
100
90
80
70
60
3.3V
5V 8V
50
40
30
20
10
D1: B360B-13-F FROM DIODES
L1: WURTH 744311220
0
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
LOAD CURRENT (A)
SWITCHING FREQUENCY vs. RFOSC
3.0
SWITCHING FREQUENCY
vs. LOAD CURRENT(5V/2.2MHz)
3.0
2.5
2.5
2.0
2.0
1.5
1.5
1.0
0.5 ^{VIN = 14V}
ILOAD = 1.5A
0
12
15
18
21
24
RFOSC (kI)
1.0
0.5 ^{VIN = 14V}
ILOAD = 1.5A
0
0 0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
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