Typical operating characteristics – Rainbow Electronics MAX16904 User Manual
Page 5
MAX16904
2.1MHz, High-Voltage,
600mA Mini-Buck Converter
_______________________________________________________________________________________
5
Typical Operating Characteristics
(V
SUP
= +14V, T
A
= +25°C, unless otherwise noted.)
EFFICIENCY
vs. LOAD CURRENT
MAX16904 toc01
I
LOAD
(A)
EFFICIENCY (%)
0.1
0.01
0.001
0.0001
10
20
30
40
50
60
70
80
90
100
0
0.00001
1
SKIP MODE
FFF MODE
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (SKIP MODE)
MAX16904 toc02
INPUT VOLTAGE (V)
SUPPLY CURRENT (
µA)
26
24
22
20
18
16
14
12
10
8
10
20
30
40
50
60
0
6
28
5V PART
3.3V PART
LINE REGULATION
(I
LOAD
= 600mA)
MAX16904 toc03
INPUT VOLTAGE (V)
OUTPUT VOLTAGE CHANGE (%)
26
24
8
10 12
16 18 20
14
22
-3
-2
-1
0
1
2
3
4
-4
6
28
LOAD REGULATION
MAX16904 toc04
LOAD CURRENT (A)
OUTPUT-VOLTAGE CHANGE (%)
0.5
0.4
0.1
0.2
0.3
-3
-2
-1
0
1
2
3
4
-4
0
0.6
SKIP MODE
FFF MODE
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX16904 toc05
INPUT VOLTAGE (V)
SUPPLY CURRENT (
µA)
26
24
22
20
18
16
14
12
10
8
3
6
9
12
15
0
6
28
STARTUP WAVEFORM (I
LOAD
= 600mA)
MAX16904 toc06
I
INDUCTOR
0.5A/div
PGOOD
5V/div
V
OUT
5V/div
EN
5V/div
1ms/div
SHUTDOWN WAVEFORM (I
LOAD
= 600mA)
MAX16904 toc07
I
INDUCTOR
0.5A/div
PGOOD
5V/div
V
OUT
5V/div
EN
5V/div
20µs/div
LOAD TRANSIENT RESPONSE
(FIXED MODE)
MAX16904 toc08
200
μs/div
5V
5V
I
LOAD
500mA/div
V
OUT
200mV/div
AC-COUPLED
PGOOD
5V/div
I
LOAD
= 100mA TO 600mA TO 100mA