MAX5089 Maxim Integrated Products, MAX5089 Datasheet - Page 5

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

(V+ = V
90
80
70
60
50
40
30
20
10
0
MAX5088 BUCK EFFICIENCY vs. OUTPUT
0
L
= 5.2V, T
CURRENT (V
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.280
500
CURRENT (V
95
90
85
80
75
70
65
60
55
50
OUTPUT CURRENT (mA)
MAX5089 OUTPUT VOLTAGE vs. OUTPUT
0
0
A
(V
1000
IN
EFFICIENCY vs. OUTPUT CURRENT
= +25°C, Figures 5 and 6, unless otherwise noted.)
_______________________________________________________________________________________
IN
= 5V, f
= 12V, f
500
MAX5089 SYNCHRONOUS
IN
500
1500
= 12V, V
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
SW
1000
SW
= 2.2MHz)
2.2MHz, 2A Buck Converters with an
1000
2000
2.5V
= 330kHz, L = 15µH)
OUT
3.3V
1500
= 3.3V, f
2500
1500
1.2V
2.5V
3.3V
2000
SW
2000
= 2.2MHz)
80
70
60
50
40
30
20
10
2500
0
MAX5088 BUCK EFFICIENCY vs. OUTPUT
0
CURRENT (V
Integrated High-Side Switch
500
OUTPUT CURRENT (mA)
IN
1000
= 12V, f
1500
Typical Operating Characteristics
SW
= 2.2MHz)
2.5V
2000
3.3V
5.190
5.185
5.180
5.175
5.170
5.165
5.160
5.155
5.150
MAX5089 SYNCHRONOUS EFFICIENCY vs. OUTPUT
CURRENT (V
80
75
70
65
60
55
50
45
40
35
30
100
0
2500
vs. SWITCHING FREQUENCY
500
600
SWITCHING FREQUENCY (kHz)
IN
V
OUTPUT CURRENT (mA)
L
= 12V, f
V
OUTPUT VOLTAGE
70
60
50
40
30
20
10
IN
0
1000
= 5.5V
MAX5088 BUCK EFFICIENCY vs. OUTPUT
0
1100
CURRENT (V
V
SW
IN
= 23V
1500
= 2.2MHz, L = 4.7µH)
500
1600
OUTPUT CURRENT (mA)
IN
2000
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1000
= 16V, f
2100
3.3V
2500
1500
SW
= 2.2MHz)
2000
3.3V
2500
5