MAX16903 Maxim Integrated Products, MAX16903 Datasheet - Page 5

• Manufacturer Part Number: MAX16903
• Description: 1A Mini-Buck Converter
• Manufacturer: Maxim Integrated Products

DataSheet.in
(V
SUP
100
2.1MHz, High-Voltage, 1A Mini-Buck Converter
90
80
70
60
50
40
30
20
10
-1
-2
-3
-4
0
0.00001
4
3
2
1
0
= +14V, T
0
SKIP MODE
EFFICIENCY vs. LOAD CURRENT
0.0001
0.2
SKIP MODE
FFF MODE
SHUTDOWN WAVEFORM (I
LOAD REGULATION
A
LOAD CURRENT (A)
= +25°C, unless otherwise noted.)
(5V VERSION)
0.001
0.4
_______________________________________________________________________________________
I
LOAD
FFF MODE
(A)
0.01
0.6
20µs/div
0.1
0.8
LOAD
MAX16903 toc07
1.0
1
= 1A)
EN
5V/div
I
1A/div
PGOOD
5V/div
V
5V/div
INDUCTOR
OUT
60
50
40
30
20
10
15
12
0
9
6
3
0
6
6
vs. INPUT VOLTAGE (SKIP MODE)
8
8
SHUTDOWN SUPPLY CURRENT
3.3V PART
NO-LOAD SUPPLY CURRENT
10
10
5V PART
vs. INPUT VOLTAGE
12
12
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
14
14
16
16
18
18
Typical Operating Characteristics
20
20
22
22
24
24
5V
5V
26
26
28
28
LOAD-TRANSIENT RESPONSE
(FIXED MODE)
I
-1
-2
-3
-4
LOAD
4
3
2
1
0
200µs/div
6
= 100mA TO 1A TO 100mA
STARTUP WAVEFORM (I
8 10 12
LINE REGULATION
INPUT VOLTAGE (V)
14
(I
MAX16903 toc08
LOAD
1ms/div
16 18 20
= 1A)
I
1A/div
V
200mV/div
AC
COUPLED
PGOOD
5V/div
LOAD
OUT
LOAD
22
MAX16903 toc06
24
= 1A)
26
28
5
EN
5V/div
I
1A/div
PGOOD
5V/div
V
5V/div
INDUCTOR
OUT