Typical Operating Characteristics
Typical Operating Characteristics
(V
SUP
= V
EN
= +14V, (T
A
= +25°C, unless otherwise noted.)
TOC 1
image/svg+xml
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
EFFICIENCY (%)
LOAD CURRENT (A)
SKIP MODE
FPWM MODE
EFFICIENCY vs. LOAD
toc01
5V
3.3V
5V
3.3V
Typical Operating Characteristics
TOC 2
image/svg+xml
0
5
10
15
20
25
6
9
12
15
18
21
24
27
30
33
36
I
Q
(
µ
A)
V
IN
(V)
NO LOAD
5V
OUT
QUIESCENT SUPPLY CURRENT
vs.
INPUT VOLTAGE (SKIP MODE)
toc02
3.3V
OUT
Typical Operating Characteristics
TOC 3
image/svg+xml
0.1
1
10
6
9
12
15
18
21
24
27
30
33
36
I
Q
(
µ
A)
V
IN
(V)
SHUTDOWN SUPPLY CURRENT
vs. INPUT
VOLTAGE
toc03
V
EN
= 0V
Typical Operating Characteristics
TOC 4
Page-1
Sheet.1
0
50
100
150
200
250
300
350
400
450
500
0.0
0.2
0.4
0.6
0.8
1.0
I
SUP
(
μ
A)
I
LOAD
(mA)
SKIP
MODE
V
O
U
T
= 5V
STANDBY
CURRENT
vs. LOAD CURRENT
toc04
Typical Operating Characteristics
TOC 5
image/svg+xml
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
6.0
12.0
18.0
24.0
30.0
36.0
OUTPUT
-
VOLTAGE CHANGE (%)
V
IN
(V)
1A
LOAD
SKIP
FPWM
LINE REGULATION
(5
V
OUT
)
toc05
Typical Operating Characteristics
TOC 6
Page-1
Sheet.1
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
0
0.2
0.4
0.6
0.8
1
1.2
OUTPUT
-
VOLTAGE CHANGE (%)
I
OUT
(A)
SKIP
FPWM
LOAD
REGULATION
toc07
V
IN
= 14V
Typical Operating Characteristics
TOC 7
Page-1
Sheet.1
0
10
20
30
40
50
60
70
80
90
100
1.85
2.1
2.35
OUTPUT SPECTRUM (dB
µ
V)
FREQUENCY (MHz)
SPECTRAL
ENERGY DENSITY
vs. FREQUENCY
toc08
V
SPS
= 5V
V
OUT
= 5V
Typical Operating Characteristics
TOC 8
image/svg+xml
toc09
STARTUP WAVEFORM
(1.2A LOAD)
1ms/div
1A/div
V
EN
5V/div
V
OUT
5V/div
5V/div
I
INDUCTOR
V
PGOOD
V
IN
= 14V
V
OUT
= 5V
Typical Operating Characteristics
TOC 9
image/svg+xml
toc10
SHUTDOWN WAVEFORM
(1.2A LOAD)
100
µ
s/div
1A/div
V
EN
5V/div
V
OUT
5V/div
5V/div
I
INDUCTOR
V
PGOOD
V
IN
= 14V
V
OUT
= 5V
Typical Operating Characteristics
TOC 10
Page-1
Sheet.1
toc11
STEADY
-
STATE SWITCHING WAVEFORMS
(5V
OUT
)
200ns/div
5V/div
V
LX
5V/div
V
OUT
100mA/div
V
IN
= 14V
NO LOAD
I
INDUCTOR
Typical Operating Characteristics
TOC 11
Page-1
Sheet.1
toc12
SLOW V
IN
RAMP
5s/div
2V/div
V
IN
5V/div
V
OUT
V
PGOOD
5V/div
V
OUT
= 5V
10mA
LOAD
Typical Operating Characteristics
TOC 12
image/svg+xml
toc14
UNDERVOLTAGE PULSE
(NO LOAD)
10ms/div
5V/div
5V/div
V
OUT
V
PGOOD
I
LOAD
V
IN
5V/div
500mA/div
14V
3.5V
Typical Operating Characteristics
TOC 13
Page-1
Sheet.1
toc15
LOAD
-
DUMP TEST
100ms/div
10V/div
V
IN
5V/div
V
OUT
NO LOAD
40V
14V
Typical Operating Characteristics
TOC 14
Page-1
Sheet.1
toc16
LOAD
-
TRANSIENT RESPONSE
(5V
OUT
)
20
µ
s/div
100mV/div
I
LOAD
500mA/div
V
OUT
(AC)
V
IN
= 14V
FPWM
1A
Typical Operating Characteristics
