MIC26603 MICREL [Micrel Semiconductor], MIC26603 Datasheet - Page 6

• Manufacturer Part Number: MIC26603
• Description: 28V, 6A Hyper Light Load Synchronous DC/DC Buck Regulator
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Typical Characteristics
July 2011
0.808
0.804
0.800
0.796
0.792
700
650
600
550
500
1.0
0.8
0.6
0.4
0.2
0.0
4
4
V
4
IN
Operating Supply Current
Switching Frequency
vs. Input Voltage
10
10
Feedback Voltage
vs. Input Voltage
vs. Input Voltage
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
16
16
16
V
I
SWITCHING
OUT
V
I
OUT
OUT
OUT
V
I
= 0A
OUT
= 1.8V
OUT
= 1A
= 1.8V
22
22
22
= 1A
= 1.8V
28
28
28
60
40
20
-0.5%
-1.0%
16
12
1.0%
0.5%
0.0%
0
8
4
0
4
4
4
V
R
V
EN
EN
IN
Enable Input Current
= 0V
= Open
10
10
vs. Input Voltage
vs. Input Voltage
Total Regulation
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Shutdown Current
10
vs. Input Voltage
INPUT VOLTAGE (V)
16
16
6
16
V
I
OUT
OUT
= 1A to 6A
= 1.8V
22
V
22
22
EN
= V
IN
28
2
28
8
10
20
15
10
100%
8
6
4
2
0
5
0
95%
90%
85%
80%
4
4
4.0
PG Threshold/V
V
vs. Input Voltage
10
10
DD
vs. Input Voltage
vs. Input Voltage
10.0
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Current Limit
Output Voltage
16
16
16.0
M9999-071311-A
V
V
I
REF
DD
REF
FB
V
OUT
= 10mA
= 0.9V
= 0.7V
Ratio
MIC26603
22.0
22
= 1.8V
22
28.0
28
28