MAX5089 Maxim Integrated Products, MAX5089 Datasheet - Page 7

• Manufacturer Part Number: MAX5089
• Description: 2.2MHz - 2A Buck Converters with an Integrated High-Side Switch
• Manufacturer: Maxim Integrated Products

V
OUT
V
(V+ = V
EN
MAX5089 SOFT-START AND SHUTDOWN
V
IN
= 12V
L
V
V
= 5.2V, T
CLKOUT
SOURCE
V
V
SYNC
OUT
80
70
60
50
40
30
20
10
0
-50
(I
MAX5088 EXTERNALLY SYNCHRONIZED
OUT
SWITCHING SUPPLY CURRENT (I
1ms/div
f
SYNC
f
f
f
A
SYNC
SYNC
SYNC
-25
= 2A)
= +25°C, Figures 5 and 6, unless otherwise noted.)
_______________________________________________________________________________________
= 2.2MHz
SWITCHING WAVEFORM
= 1.2MHz
= 600kHz
= 300kHz
vs. TEMPERATURE
0
TEMPERATURE (°C)
MAX5088/89 toc15
25
100ns/div
2.2MHz, 2A Buck Converters with an
50
5V/div
1V/div
0V
0V
75
MAX5088
V
I
OUT
OUT
MAX5088/89 toc18
= 1A
100
= 3.3V
SW
)
125
Typical Operating Characteristics (continued)
5V/div
0V
5V/div
0V
10V/div
0V
500mV/div
V
(EN CONNECTED TO V
IN
Integrated High-Side Switch
STARTUP WAVEFORM
1ms/div
L
MAX5088/89 toc16
)
V
10V/div
2.75
2.70
2.65
2.60
2.55
2.50
2.45
2.40
2.35
V
5V/div
V
2V/div
V
5V/div
500
450
400
350
300
IN
EN
OUT
PGOOD
-40
-40
V
V
f
SW
IN
OUT
= 12V
= 1MHz
V
RESET
= 3.3V
V
V
OUT
V
EN
SHUTDOWN CURRENT
IN
vs. TEMPERATURE
vs. TEMPERATURE
10
10
CURRENT LIMIT
TEMPERATURE (°C)
TEMPERATURE (°C)
60
60
RESET TIMEOUT
40ms/div
www.DataSheet4U.com
110
110
MAX5088/89 toc17
10V/div
5V/div
2V/div
5V/div
7